Preparation of hairy particles by grafting PEG onto the poly(styrene-co-maleic anhydride) surface and PEG effect on SiO2 nanoparticles adsorption

被引：6
作者：
Song, LinYong [1 ]
Nie, WangYan [1 ]
Zhou, YiFeng [1 ]
机构：
[1] Anhui Univ, Coll Chem & Chem Engn, Anhui Prov Key Lab Environm Friendly Polymer Mat, Hefei 230039, Anhui, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 129卷 / 06期
关键词：
colloids; copolymers; grafting; steric-effect; NANOCOMPOSITE PARTICLES; POLYETHYLENE-GLYCOL; POLYMER; FILMS; COMPOSITE; MICROSPHERES;
D O I：
10.1002/app.39131
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Hairy particles were prepared by immobilization of poly(ethylene glycol) (PEG) on the surface of poly(styrene-co-maleic anhydride) (poly(S-co-MA)) spheres. It was found that the carbonyl groups on the poly(S-co-MA) surface can be conveniently esterified with the hydroxyl groups of PEG. Chemical and morphological changes were analyzed by FT-IR, TEM, and water contact angle. Results revealed that, with the immobilization of PEG, the morphology of poly(S-co-MA) turned from a smooth surface to a hairy-like structure and the hydrophilicity of the polymer particles improved. In addition, berry-like polymer/silica particles can be obtained by using the hairy particles as template. The PEG hairy chains show steric repulsion during the deposition of silica nanoparticles by in situ sol-gel process. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
引用
收藏
页码：3650 / 3655
页数：6
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