Synthesis of well-defined second-generation dendritic polymers of isoprene (I) and styrene (S):: (S2I)3, (SI′I)3, (I"I′I)3, and (I′2I)4

被引：82

作者：

Chalari, I ^{[1
]}

Hadjichristidis, N ^{[1
]}

机构：

[1] Univ Athens, Dept Chem, Athens 15771, Greece

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2002年 / 40卷 / 10期

关键词：

hyperbranched second-generation dendritic polymers; (S-2; )(3); (SI ' I)(3); (I '' I ' I)(3); (I; I-2; )(4); anionic polymerization; macromonomer 4-(chloradimethylsilyl)styrene; trichloromethyl silane; tetrachlorosilane;

D O I：

10.1002/pola.10233

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of second-generation (G-2) dendritic polymers of isoprene (I) and styrene (S) was achieved with anionic polymerization high-vacuum techniques and by performing the following steps: (1) selective reaction of a living chain with the chlorosilane group of 4-(chlorodimethylsilyl)styrene (a dual-functionality compound) to produce a macromonomer, (2) addition of a second living chain (same or different) to the double bond of the macromonomer, (3) polymerization of I with the anionic sites, and (4) reaction of the produced off-center living species with trichloromethyl silane or tetrachlorosilane (CH3SiCl3 or SiCl4). The combined characterization results showed that the G-2 dendritic macromolecules synthesized-(S2I)(3), (SI'I)(3), (I"I'I)(3), (I'I-2)(4)-have a high molecular and compositional homogeneity. (C) 2002 Wiley Periodicals. Inc.

引用

页码：1519 / 1526

页数：8

共 31 条

[11] A tandem approach to graft and dendritic graft copolymers based on ''living'' free radical polymerizations [J].