New method for fabricating aromatic polyamide particles with a narrow particle size distribution

被引：14

作者：

Yoshioka, Yayoi ^{[1
]}

Asao, Katsuya ^{[1
]}

Yamamoto, Kazuhiko ^{[1
]}

Tachi, Hideki ^{[1
]}

机构：

[1] Technol Res Inst Osaka Prefecture, Osaka 5941157, Japan

来源：

MACROMOLECULAR REACTION ENGINEERING | 2007年 / 1卷 / 02期

关键词：

D O I：

10.1002/mren.200600019

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Three types of aromatic polyamide particles have been prepared from reacting diamines and diacid chlorides in an acetone or dioxane solution that includes water, using the precipitation polymerization method employing ultrasonic irradiation. The particle diameters were in the range from 300 nm to 1.2 mu m with a narrow size distribution. The surface morphology and crystallinity differed greatly among the particles. They began to degrade at temperatures above 400 degrees C. Also the morphology depended on the ultrasonic frequency. The addition of water was essential to form particles using this polymerization method. Further it was useful to increase the molecular weights of polyamide products.

引用

页码：222 / 228

页数：7

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