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Amphiphilic Comb-Like Poly(oxyethylene) and Its Complexes with LiClO4: Synthesis and Mesomorphic Behavior

✍ Scribed by Jong-Uk Kim; Sang-Ho Cha; Jong-Chan Lee

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 225 KB
Volume: 25
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200300105

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✦ Synopsis

Abstract

Summary: We prepared an amphiphilic, comb‐like poly(oxyethylene) containing decyl‐tri(oxyethylene) amphiphiles in the side chain using a polymer analogous reaction to obtain a novel nonionic amphiphilic polymeric system with high molecular weight. The amphiphilic comb‐like poly(oxyethylene) itself only showed a side‐chain crystalline phase below its melting temperature of −31 °C. When the polymer was mixed with lithium perchlorate, a smectic liquid‐crystalline phase appeared. The ordered phases of the polymer and the polymer mixture were studied by differential scanning calorimetry, polarized optical microscopy, and X‐ray diffraction.

POM image (200 X) of D3OTP1 at room temperature.

imagePOM image (200 X) of D3OTP1 at room temperature.

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Synthesis and SFM Study of Comb-Like Poly(4-vinylpyridinium) Salts and Their Complexes with Surfactants

✍ Marat O. Gallyamov; Sergey G. Starodubtsev; Alexei R. Khokhlov 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 285 KB

## Abstract **Summary:** Poly(4‐vinylpyridinium) bromides containing octyl and dodecyl pendant groups were synthesized. Bromide anions in these polymer salts were substituted with dodecylsulfate and bis(2‐ethylhexylsuccinate) anions using ion‐exchange reactions. Initially, P4VP and its derivatives