Category: 629-03-8

In 2019,ChemistrySelect included an article by de Oliveira, Adeildo Junior; Souza, Isis Torres; Bernardo, Vanderson Barbosa; Santos, Larissa C.; de Lima, Maria Raquel Ferreira; Goulart, Henrique Fonseca; Goulart Santana, Antonio Euzebio. Formula: C6H12Br2. The article was titled 《Monobromination of α,ω-Diols: Highly Efficient Preparation of Synthetic Intermediates》. The information in the text is summarized as follows:

The present work aimed to evaluate different conditions to perform monobromination reactions of α,ω-diols HOCH2(CH2)nCH2OH (n = 4, 5, 6, 8) using HBr. Three solvents such as, toluene, isooctane, 1,2-dichloroethane were tested in two distinct molar proportions between 1,8-octanediol and HBr (1:1 and 1:2 equiv). All reactions occurred under reflux. After establishing the best reactional conditions, assays with four sym. α,ω-diols, 1,6-hexanediol; 1,7-heptanediol; 1,8-octanediol; and 1,10-decanediol, with 2 equivalent HBr in 1,2-dichloroethane, were conducted. Using toluene as solvent lead to the best reaction yields (81-95%), producing the least amount of unwanted dibrominated product BrCH2(CH2)nCH2Br. Reactions in 1,2-dichloroethane gave similar results to the ones with toluene when 2 equivalent HBr were used. The lowest reactional efficiency registered in these assays occurred in isooctane, forming the highest amount of dibromide. Diols 1,7-heptanediol and 1,8-octanediol showed the best results under the conditions studied, in 1,2-dichloroethane. In the experiment, the researchers used many compounds, for example, 1,6-Dibromohexane(cas: 629-03-8Formula: C6H12Br2)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Formula: C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Reactive & Functional Polymers included an article by Zhang, Shuai; Zhu, Xiuling; Jin, Cuihong; Hu, Huilan. HPLC of Formula: 629-03-8. The article was titled 《Pyridinium-functionalized crosslinked anion exchange membrane based on multication side chain tethered elastomeric triblock poly(styrene-b-(ethylene-co-butylene)-b-styrene)》. The information in the text is summarized as follows:

Hydroxide ion conductivity and long-term chem. stability play an important role in the development of anion exchange membranes (AEMs) for application of alk. anion exchange membrane fuel cells (AAEMFCs). Herein, the high alk. stable elastomeric triblock copolymer, poly(styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS) with pendent multi-cation side chain and 4,4-bipyridine was develop for AEMs. The three cations in a side chain were tethered to the SEBS backbone and the length of the spacer between cations was six methylene (-CH2-) groups (TNQN). More importantly, the 4,4-bipridine was introduced to the membranes as the crosslinker and functional groups, which exhibited the significant improvement in hydroxide ion conductivity of the membranes. The hydroxide conductivity of the cross-linked quaternized SEBS (TNQN-SEBS-Bpy) membranes was 30.41-69.04 mS·cm-1 from 30°C to 80°C, which could be ascribed to well micromorphol. and more functional groups. Compared to the uncross-linked TNQN-SEBS, the TNQN-SEBS-Bpy membranes showed higher mech. property and thermal stability. All the membranes exhibited good alk. stability which the hydroxide conductivity maintained above 90% of the original ionic conductivity after 300 h of alk. treatment (1 M aqueous NaOH) at 80°C. Based on these outstanding properties, the cross-linked membranes show great potential application as alk. anion exchange membranes. In the experimental materials used by the author, we found 1,6-Dibromohexane(cas: 629-03-8HPLC of Formula: 629-03-8)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.HPLC of Formula: 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Interaction of ninhydrin with zinc(II) complex of tryptophan in the three dicationic gemini surfactants》 was written by Abdul Rub, Malik; Kumar, Dileep. Formula: C6H12Br2This research focused onzinc ninhydrin tryptophan gemini surfactant critical micellar concentration. The article conveys some information:

Present work concerns with the interaction of ninhydrin with zinc(II) complex of tryptophan ([Zn(II)-Trp]+) in the three dicationic gemini surfactant systems. To record critical micellar concentration (CMC) and absorbance, we have used Systronics conductivity meter and UV-visible spectrophotometer, resp. Experiment opens up the fractional- and first-order paths in ninhydrin and complex, resp. Gemini micellar medium is found more superior over aqueous medium. Rate constant (kψ) vs. [gemini] plot shows the unusual role of geminis on kψ. kψ increases with gemini concentration (at concentrations lower than the CMC, part I) and leveling-off regions obtain (concentration up to 400 × 10-5 mol dm-3, part II). Characteristics of part I and part II are just the same as that of conventional surfactant. Later, gemini produces a third region of increasing kψ at higher concentrations ([gemini] > 400 × 10-5 mol dm-3, part III). Detail and systematic elucidation about the effect of surfactants are mentioned and discussed in the text. Binding constants (KS for [Zn(II)-Trp]+ and KN for ninhydrin) and rate constant (km in geminis) were determined by nonlinear least squares regression technique. The kinetic results acquired can reasonably be interpreted by pseudo-phase model of surfactant micelles. In the experimental materials used by the author, we found 1,6-Dibromohexane(cas: 629-03-8Formula: C6H12Br2)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Formula: C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and Crystal Structure of Chalcone Derivatives and Their Effect on α-Glucosidase》 was published in Journal of Chemical Crystallography in 2020. These research results belong to Lin, Ping; Yin, Zhong-Ping; Wang, Meng; Liu, Jia; Yuan, En; Peng, Da-Yong; Nie, Xu-Liang; Shang-Guan, Xin-Chen. Application of 629-03-8 The article mentions the following:

Five trans-chalcone derivatives I [n = 2, 3, 4, 5, 6] were synthesized and characterized by 1H NMR, HRMS. The crystalline structures of compounds I [n = 5, 6] were further characterized by X-ray crystal diffraction. Among the five compounds, I [n = 2, 3] showed inhibitory activity on α-glucosidase, but I [n = 5, 6] increased the activity of α-glucosidase. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Application of 629-03-8) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Application of 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Multiple Enhancement Effects of Crown Ether in Tröger’s Base Polymers on the Performance of Anion Exchange Membranes》 was published in ACS Applied Materials & Interfaces in 2020. These research results belong to Yang, Qian; Cai, Yuan Yuan; Zhu, Zhao Yu; Sun, Li Xuan; Choo, Yvonne Shuen Lann; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin. Recommanded Product: 1,6-Dibromohexane The article mentions the following:

The development of anion exchange membranes (AEMs) is hindered by the trade-off of ionic conductivity, alk. stability, and mech. property. Troger’s base polymers (Tb-polymers) are recognized as promising membrane materials to overcome these obstacles. Herein, the AEMs made from Tb-poly(crown ether)s (Tb-PCEs) show good comprehensive performance. The influence of crown ether on the conductivity and alk. stability of AEMs has been investigated in detail. The formation of hydronium ion-crown ether complexes and an obvious microphase separated structure formed by the existence of crown ether can enhance the conductivity of the AEMs. The maximum ionic conductivity of 141.5 mS cm-1 is achieved from the Tb-PCEs based AEM (Tb-PCEs-1) at 80 oC under 100% humidity. The ion-dipole interaction of the Na+ with crown ether can protect the quaternary ammonium from the attack of OH- to improve the alk. stability of AEMs. After 480 h alk. treatment, the ionic conductivity of Tb-PCEs-1 only decreases by 6%. The single cell fabricated by the Tb-PCEs-1 shows a peak power d. of 0.202 W cm-2 at 80 oC. The prominent physicochem. properties are attributed to the well-developed microstructure of the Tb-PCEs, as revealed by TEM, AFM and SAXS observations. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Recommanded Product: 1,6-Dibromohexane) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Recommanded Product: 1,6-Dibromohexane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《A Fluorescent Compound from the Exuviae of the Scorpion, Liocheles australasiae》 was written by Yoshimoto, Yusuke; Tanaka, Masato; Miyashita, Masahiro; Abdel-Wahab, Mohammed; Megaly, Alhussin M. A.; Nakagawa, Yoshiaki; Miyagawa, Hisashi. Name: 1,6-Dibromohexane And the article was included in Journal of Natural Products in 2020. The article conveys some information:

Most scorpions fluoresce under UV light. To date, two types of fluorescent compounds have been identified in scorpions, but it has been assumed that other unknown compounds may be responsible for the fluorescence. In this study, we isolated a fluorescent compound from the exuviae of the scorpion Liocheles australasiae identified as a macrocyclic diphthalate ester with a mol. mass of 496.2 Da. The same compound was also detected in extracts from four other scorpion species. This suggests that this compound is shared by multiple scorpion species, although its contribution to the cuticle fluorescence may be relatively small. The experimental part of the paper was very detailed, including the reaction process of 1,6-Dibromohexane(cas: 629-03-8Name: 1,6-Dibromohexane)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Name: 1,6-Dibromohexane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Jheng, Li-Cheng; Cheng, Cheng-Wei; Ho, Ko-Shan; Hsu, Steve Lien-Chung; Hsu, Chung-Yen; Lin, Bi-Yun; Ho, Tsung-Han published their research in Polymers (Basel, Switzerland) in 2021. The article was titled 《Dimethylimidazolium-Functionalized Polybenzimidazole and Its Organic-Inorganic Hybrid Membranes for Anion Exchange Membrane Fuel Cells》.Computed Properties of C6H12Br2 The article contains the following contents:

A quaternized polybenzimidazole (PBI) membrane was synthesized by grafting a dimethylimidazolium end-capped side chain onto PBI. The organic-inorganic hybrid membrane of the quaternized PBI was prepared via a silane-induced crosslinking process with triethoxysilylpropyl dimethylimidazolium chloride. The chem. structure and membrane morphol. were characterized using NMR, FTIR, TGA, SEM, EDX, AFM, SAXS, and XPS techniques. Compared with the pristine membrane of dimethylimidazolium-functionalized PBI, its hybrid membrane exhibited a lower swelling ratio, higher mech. strength, and better oxidative stability. However, the morphol. of hydrophilic/hydrophobic phase separation, which facilitates the ion transport along hydrophilic channels, only successfully developed in the pristine membrane. As a result, the hydroxide conductivity of the pristine membrane (5.02 x 10-2 S cm-1 at 80°C) was measured higher than that of the hybrid membrane (2.22 x 10-2 S cm-1 at 80°C). The hydroxide conductivity and tensile results suggested that both membranes had good alk. stability in 2M KOH solution at 80°C. Furthermore, the maximum power densities of the pristine and hybrid membranes of dimethylimidazolium-functionalized PBI reached 241 mW cm-2 and 152 mW cm-2 at 60°C, resp. The fuel cell performance result demonstrates that these two membranes are promising as AEMs for fuel cell applications. In the experimental materials used by the author, we found 1,6-Dibromohexane(cas: 629-03-8Computed Properties of C6H12Br2)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Computed Properties of C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Chi; Fan, Zhinan; Zhan, Hao; Zhou, Hong; Ma, Rongliang; Fan, Li-Juan published an article in 2021. The article was titled 《Fluorescent Cationic Conjugated Polymer-Based Adaptive Developing Strategy for Both Sebaceous and Blood Fingerprints》, and you may find the article in ACS Applied Materials & Interfaces.Recommanded Product: 629-03-8 The information in the text is summarized as follows:

Both latent sebaceous and blood fingerprints may provide valuable information for forensic investigation. To detect both types of fingerprints with no need to predistinguish them, a new adaptive developing strategy was proposed. A cationic conjugated polymer with poly[p-(phenylene ethylene)-alt-(thienylene ethynylene)] backbone (PPETE-NMe3+) was synthesized, which was dissolved in N,N-dimethylformamide (DMF) to form the developing solution Fingerprints were developed by a simple dropping and incubating process without any pre-/post-treatments. Fluorescent photographs of the developed fingerprints on various substrates demonstrated that this developing strategy was effective for both types of fingerprints on nonporous substrates. Gray value anal. further confirmed the enhancement of the legibility of the fingerprint images. The preliminary mechanism exploration suggested that certain weak interactions, such as hydrophobic interaction and electrostatic interaction, may synergistically contribute to the interaction between the polymer and fingerprint components. The mol. design of the polymer combined with an appropriate solvent endowed the developing system the adaptiveness toward different types of fingerprints. This adaptive developing strategy made the fingerprint-developing process more efficient and may be further extended to more practical application scenes.1,6-Dibromohexane(cas: 629-03-8Recommanded Product: 629-03-8) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Recommanded Product: 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Qian; Zhu, Ji-Chun; Li, Zhen-Xing; Chen, Xiao-Shuai; Jiang, Yu-Xing; Luo, Zhi-Wang; Wang, Ping; Xie, He-Lou published an article in 2021. The article was titled 《Luminescent Liquid Crystals Based on Carbonized Polymer Dots and Their Polarized Luminescence Application》, and you may find the article in ACS Applied Materials & Interfaces.Recommanded Product: 1,6-Dibromohexane The information in the text is summarized as follows:

Traditional luminescent liquid crystals (LLCs) suffer from fluorescence quenching caused by aggregation, which greatly limits their further application. In this work, a kind of novel LLCs (named carbonized polymer dot liquid crystals (CPD-LCs)) are designed and successfully synthesized through grafting the rod-shaped liquid crystal (LC) mols. of 4′-cyano-4-(4”-bromohexyloxy) biphenyl on the surface of CPDs. The peripheral LC mols. not only increase the distance between different CPDs to prevent them from aggregating and reduce intermol. energy resonance transfer but also make this LLC have an ordered arrangement. Thus, the obtained CPD-LCs show good LC property and excellent high luminous efficiency with an absolute photoluminescence quantum yield of 14.52% in the aggregated state. Furthermore, this kind of CPD-LC is used to fabricate linearly polarized devices. The resultant linearly polarized dichroic ratio (N) and polarization ratio (ρ) are 2.59 and 0.44, resp. Clearly, this type of CPD-LC shows promising applications for optical devices. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Recommanded Product: 1,6-Dibromohexane) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Recommanded Product: 1,6-Dibromohexane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yan, Qiwen; Mao, Lina; Feng, Bang; Zhang, Lidong; Wu, Yiqian; Huang, Wei published an article in 2021. The article was titled 《Reversible Patterning Cross-Linked, Humidity-Responsive Polymer Films with Programmatically and Accurately Controlled Deformation》, and you may find the article in ACS Applied Materials & Interfaces.Safety of 1,6-Dibromohexane The information in the text is summarized as follows:

A series of novel humidity-responsive and photosensitive polymer films (PCA-PAA-PEG) are prepared These films can be patterning crosslinked by the photodimerization of coumarin pendant groups. The humidity-induced deformation can be well controlled by the pattern because of the different modulus and hydrophilicity between crosslinked and un-crosslinked segments. In addition, the pattern can be erased and the deformation direction can be changed programmatically by the de-crosslinking-re-crosslinking approach due to the reversible photodimerization of coumarin groups. The crosslinking degree also affects the humidity responsiveness of the film. The deformation of the gradient patterning crosslinked film can be more accurately controlled. Moreover, the length and width ratio (L/Ws/Wh) of the un-crosslinked segment to the crosslinked segment affects the deformation of the films as well. When L/Ws/Wh is 5/2/1 or 5/3/1, the deformation is controllable, and when L/Ws/Wh is 5/1/1 or 5/4/1, the deformation is random at the initial stage, but the whole film will bend along the short axis in the end. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Safety of 1,6-Dibromohexane) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Safety of 1,6-Dibromohexane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary