Synthesis of hyperbranched aromatic polyamide by direct polycondensation method

被引：11

作者：

Haba, O

Tajima, H

Ueda, M ^{[1
]}

Nagahata, R

机构：

[1] Yamagata Univ, Grad Sch Engn, Dept Human Sensing & Funct Sensor Engn, Yonezawa, Yamagata 992, Japan

[2] Natl Inst Mat & Chem Res, Dept Polymer Chem, Tsukuba, Ibaraki 305, Japan

来源：

CHEMISTRY LETTERS | 1998年 / 04期

关键词：

D O I：

10.1246/cl.1998.333

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A hyperbranched aromatic polyamide was prepared from 5-aminoisophthalic acid by the direct polycondensation method using diphenyl (2,3-dihydro-2-thioxo-3-benzoxazolyl)phosphonate (DBOP) as a condensing agent. The resulting polymer was further reacted with p-anisidine to give methoxy-end-capped polymer (3). IR spectrum of 3 indicates the end-capping was achieved completely. MALDI-TOF MS spectrum of 3 indicates presence of no side-reaction. Number average molecular weight of 3 could be determined by its H-1 NMR spectrum and was 1 800.

引用

页码：333 / 334

页数：2

共 9 条

[1] Solid-supported hyperbranched polymerization: Evidence for self-limited growth [J].