PREPARATION OF BLOCK COPOLYMER OF 2-OXAZOLINE AND BUTADIENE

被引：26

作者：

SAEGUSA, T ^{[1
]}

IKEDA, H ^{[1
]}

机构：

[1] KYOTO UNIV,FAC ENGN,DEPT SYNTH CHEM,KYOTO,JAPAN

来源：

MACROMOLECULES | 1973年 / 6卷 / 06期

关键词：

2-oxazoline - Alkaline hydrolysis - End groups - Insoluble polymers - Polymerization mixtures - Rubbery materials - Solvent mixtures - Tosylation;

D O I：

10.1021/ma60036a003

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A block copolymer of ABA type was prepared from 2-oxazoline (OXZ) (A) and polybutadiene (polyBD) (B). Polybutadiene having tosylate end groups (polybutadiene tosylate) was first prepared by the esterification of a,ipoly(butadiene) glycol ([ij] = 0.13) with tosyl chloride. The uv analysis of the tosylate end group indicated complete tosylation. Then, OXZ was polymerized by polybutadiene tosylate in a solvent mixture of toluene and dimethylformamide at 100°. Insoluble polymer precipitated from the OXZ polymerization mixture, which was shown to be an OXZ-BD block copolymer containing 61 mol % of OXZ unit. Alkaline hydrolysis of the block copolymer gave a rubbery material ([rj] = 0.33) soluble in CHCI3 which was shown to be a block copolymer consisting of ethylenimine and butadiene units. © 1973 American Chemical Society. All rights reserved.

引用

页码：805 / 808

页数：4

共 8 条

[1] POLYMERIZATION OF CYCLIC IMINO ETHERS .I. OXAZOLINES [J].