ANIONIC SYNTHESIS AND CHARACTERIZATION OF POLY(4-VINYLPYRIDINE)-POLY(DIMETHYLSILOXANE) BLOCK COPOLYMERS

被引：20

作者：

NUGAY, N ^{[1
]}

KUCUKYAVUZ, Z ^{[1
]}

KUCUKYAVUZ, S ^{[1
]}

机构：

[1] MIDDLE E TECH UNIV,DEPT CHEM,06531 ANKARA,TURKEY

来源：

POLYMER INTERNATIONAL | 1993年 / 32卷 / 01期

关键词：

ANIONIC POLYMERIZATION; BLOCK COPOLYMER; POLY(4-VINYLPYRIDINE); POLY(DIMETHYLSILOXANE); QUATERNIZATION;

D O I：

10.1002/pi.4990320115

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(4-vinylpyridine)-b-Poly(dimethylsiloxane) (P4VP-b-PDMS) copolymers have been synthesized by sequential anionic polymerization of 4VP and hexamethylcyclotrisiloxane at - 70-degrees-C. The initiator was sodium naphthenate. The solvent used during reactions has a very critical role in an homogeneous polymerization medium. A 1:1 pyridine/THF mixture was found to be the most suitable. The products were characterized by H-1-NMR spectroscopy, transmission electron microscopy (TEM) and differential scanning calorimetry (DSC) techniques. All the results indicated the formation of 4-vinylpyridine-siloxane block copolymers. Also, the P4VP blocks can be completely quaternized with methyl iodide as indicated by H-1-NMR and FTIR spectroscopies.

引用

页码：93 / 96

页数：4