特殊形态接枝高分子颗粒的合成

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (10): 2008.

特殊形态接枝高分子颗粒的合成

陈明清¹, 刘晓亚¹, 杨成¹, 明石满^1,2

1. 江南大学化学与材料工程学院, 无锡 214036;
2. 日本鹿儿岛大学工学部, 鹿儿岛 89020065

收稿日期:2001-11-13 出版日期:2002-10-24 发布日期:2002-10-24
通讯作者: 陈明清(1962年生),男,博士,主要从事功能性高分子颗粒材料的合成研究.E-mail:polymer@wxuli.edu.cn E-mail:polymer@wxuli.edu.cn
基金资助:
教育部高等学校骨干教师资助计划(批准号:2000-65);日本文部省重点基础研究项目(批准号:11480289)资助

Synthesis of Grafted Polymer Particles with Unusual Form

CHEN Ming-Qing¹, LIU Xiao-Ya¹, YANG Cheng¹, Akashi Mitsuru^1,2

1. School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214036;
2. Faculty of Engineering, Kagoshima University, Kagoshima 890-0065, Japan

Received:2001-11-13 Online:2002-10-24 Published:2002-10-24

摘要/Abstract

关键词: 分散共聚, 高分子微粒, 特异形态

Abstract: PEG macromonomer having one methacryloyl end group for per polymer chain was selected as reaction stabilizer. The distribution of molecular weight of the macromonomer was less than 1.1 based on the GPC analysis. Poly(acrylonitrile/styrene) particles with sub-micron sizes were prepared by dispersion copolymerization of acrylonitrile with styrene by using 2,2'-azobisisobutyronitrile(AIBN) as a free radical initiator in the presence of PEG macromonomer in V(ethanol)∶V(water)=7∶3 mixed solvents at 60 ℃ for 24 h. The particles having narrow size-distribution were obtained and studied by transmission electron microscopy(TEM) and laser light scattering(LLS). The surfaces of the particles have unusual structures(strawberry form or wheel form shows) which can be control by changing molecular weight of PEG macromonomer and other reaction conditions. The structure of the freeze-dried particles was investigated by X-ray diffraction(XRD) system and showed a distinct diffraction peak at 2θ=22.6°, indicating that the particles are crystallized.

Key words: Dispersion copolymerization, Polymer particle, Unusual form

中图分类号:

O631

TrendMD:

陈明清, 刘晓亚, 杨成, 明石满. 特殊形态接枝高分子颗粒的合成. 高等学校化学学报, 2002, 23(10): 2008.

CHEN Ming-Qing, LIU Xiao-Ya, YANG Cheng, Akashi Mitsuru. Synthesis of Grafted Polymer Particles with Unusual Form. Chem. J. Chinese Universities, 2002, 23(10): 2008.