SYNTHESIS OF POLY(VINYL ALCOHOL) CORE POLYSTYRENE SHELL TYPE MICROSPHERES

被引：12
|
作者：
SAITO, R
OKAMURA, S
ISHIZU, K
机构：
[1] Department of Polymer Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152
来源：
POLYMER | 1995年 / 36卷 / 23期
关键词：
CORE-SHELL MORPHOLOGY; MICROSPHERES; POLY(VINYL ALCOHOL-G-STYRENE);
D O I：
10.1016/0032-3861(95)96862-3
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(vinyl alcohol-g-styrene) graft copolymers with various polystyrene contents (from 9 to 51 mol%) were synthesized. These graft copolymers formed poly(vinyl alcohol) (PVA) core-polystyrene (PS) corona micelles in tetrahydrofuran (THF)-dimethylsulfoxide mixtures when the THF content was from 66 to 69 vol%. The PVA cores of these micelles were crosslinked with terephthal aldehyde (TPA) in solution. When the TPA concentration in relation to vinyl alcohol groups was below 10 mol%, it was possible to hinder intermicelle crosslinking and PVA core-PS shell type microspheres were obtained. The minimum PS shell content of microspheres obtained in this work was 9 mol%.
引用
收藏
页码：4515 / 4520
页数：6
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