Polymerization of lyotropic phases: 1. Isotropic fluid phase of two new polymerizable amphiphiles

Li, M. H.; Yang, Wuli; Qian, Jiasheng; Wang, C. C.; Fu, Shoukuan

doi:10.1163/1568555042474077

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…DVB particles (1.04 g) were suspended in 75 mL of n ‐heptane together with benzoyl peroxide (0.1 g) in a 100‐mL three‐necked round‐bottom flask under magnetic stirring. Hydrogen bromide (HBr) was generated using a modified method29 by drop‐wise addition of bromine (20 mL) to dry tetralin (40 mL). The gas was washed from excess bromine by passing it through a cleaning tower of tetralin before it was bubbled into the particle suspension.…”

Section: Methodsmentioning

confidence: 99%

Hydrobromination of residual vinyl groups on divinylbenzene polymer particles followed by atom transfer radical surface graft polymerization

Limé¹,

Irgum²

2009

J. Polym. Sci. A Polym. Chem.

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Rigid and monodisperse spherical polymer particles with 2.36 AE 0.18 lm diameter containing residual surface vinyl groups were prepared by photoinitiated precipitation polymerization of divinylbenzene. Anti-Markovnikov addition of HBr to the surface vinyl groups yielded a 2-bromoethyl functionality that was used as macroinitiator for atom transfer radical polymerization (ATRP), providing the possibility for further functionalization by controlled ''grafting from'' processes. This was demonstrated by grafting of glycidyl methacrylate brushes from the particle surface, using an ATRP system based on CuBr and pentamethyl diethylenetriamine. Existence of a methacrylic overlayer was verified by FTIR and XPS measurements, and the grafted particles were easily dispersed in water, confirming conversion of the particle surface from hydrophobic to hydrophilic. Hydrobromination of residual vinyl groups yields a macroinitiator that can be used for grafting of glycidyl methacrylate by ATRP.

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Section: Methodsmentioning

confidence: 99%

Hydrobromination of residual vinyl groups on divinylbenzene polymer particles followed by atom transfer radical surface graft polymerization

Limé¹,

Irgum²

2009

J. Polym. Sci. A Polym. Chem.

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“…For each ternary system in this article, deionized pure water was used as the water phase, and NGDA containing 1 wt % photoinitiator was used as the oil phase. NGDA was synthesized as in our previous article 37. 2,2‐Dimethoxy‐2‐phenylacetophenone (Irgacure 651), a gift of Ciba–Geigy, was used as the photoinitiator.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous article37 on the polymerization of lyotropic phases, we reported two new polymerizable linear amphiphiles forming only isotropic fluid phases, which could be polymerized into transparent polymeric materials. Here we introduce a group of polymerizable amphiphiles with tail/head number ratios systematically varied (Fig.…”

Section: Introductionmentioning

confidence: 99%

Phase behavior and polymerization of lyotropic phases. II. A series of polymerizable amphiphiles with systematically varied critical packing parameters

Yang

Chen

et al. 2006

J. Polym. Sci. A Polym. Chem.

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A group of polymerizable amphiphiles, with their critical packing parameters systematically varied, were studied with respect to the phase behavior and immobilization of their lyotropic liquid-crystalline phase structures. Small-angle X-ray scattering and polarized light microscopy were used to study their liquid-crystalline phases before and after photopolymerization. The liquid crystallinity of the amphiphiles depended on the contents of both oil and water in the ternary systems. Through photopolymerization, hexagonal phases could generally be immobilized, with the structural order reduced to various degrees. However, the cubic phases evolved with polymerization into another structural pattern, which was possibly related to the lamellar structure.

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Hydrobromination of hydroxyl-terminated polybutadiene (HTPB) resin under optimal conditions with aqueous hydrobromic acid using response surface methodology (RSM)

Kazazi,

Hayaty,

Mousaviazar

2024

Polym. Bull.

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Polymerization of lyotropic phases: 1. Isotropic fluid phase of two new polymerizable amphiphiles

Cited by 4 publications

References 20 publications

Hydrobromination of residual vinyl groups on divinylbenzene polymer particles followed by atom transfer radical surface graft polymerization

Hydrobromination of residual vinyl groups on divinylbenzene polymer particles followed by atom transfer radical surface graft polymerization

Phase behavior and polymerization of lyotropic phases. II. A series of polymerizable amphiphiles with systematically varied critical packing parameters

Hydrobromination of hydroxyl-terminated polybutadiene (HTPB) resin under optimal conditions with aqueous hydrobromic acid using response surface methodology (RSM)

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