SYNTHESIS AND CHARACTERIZATION OF AMPHIPHILIC AND MICROPHASE-SEPARATED GRAFT-COPOLYMERS .1. SYNTHESIS AND BULK CHARACTERIZATION OF POLYSTYRENE-GRAFT-OMEGA-STEARYL-POLY(ETHYLENE OXIDE)

被引：0

作者：

QIU, YX ^{[1
]}

YU, XJ ^{[1
]}

FENG, LX ^{[1
]}

YANG, SL ^{[1
]}

机构：

[1] ZHEJIANG UNIV,DEPT CHEM,HANGZHOU 310027,PEOPLES R CHINA

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS | 1992年 / 193卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Using the rigid and hydrophobic polystyrene (PS) chain as backbone, onto which flexible and hydrophilic stearyl-poly(ethylene oxide) (SPEO) chains are grafted, a new kind of amphiphilic, microphase-separated graft copolymer was synthesized using the macromonomer technique. Stearyl-poly(ethylene oxide) macromonomers with acryloyl end-group (SPEO-A) were prepared through an end-group exchange reaction of alpha-stearyl-omega-hydroxypoly(ethylene oxide) (SPEO-OH) and acryloyl chloride in the presence of triethylamine. The radical copolymerization of styrene with SPEO-A was carried out under various experimental conditions. Following a careful examination of their purity, the structure of the prepared copolymers was characterized by means of IR, H-1 NMR and GPC analyses. A new feasible method using first derivative UV spectrometry was developed for quantitative determination of the bulk composition of the graft copolymers. Copolymers with a wide range of bulk composition and satisfactory grafting degree were obtained.

引用

页码：1377 / 1385

页数：9

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