Preparation of poly(methyl methacrylate) grafted hydroxyapatite nanoparticles via reverse ATRP

被引：21
作者：
Wang, Yan [1 ]
Xiao, Yan [1 ]
Huang, Xiujuan [1 ]
Lang, Meidong [1 ]
机构：
[1] E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2011年 / 360卷 / 02期
关键词：
Hydroxyapatite; Surface grafting; Reverse ATRP; Poly(methyl methacrylate); TRANSFER RADICAL POLYMERIZATION; SURFACE-INITIATED ATRP; SILICA NANOPARTICLES; COMPOSITE SCAFFOLDS; NANO-CRYSTALS; BRUSHES; STYRENE; BONE; PMMA; NANOCOMPOSITES;
D O I：
10.1016/j.jcis.2011.04.093
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface-initiated reverse atom transfer radical polymerization (reverse ATRP) technical was successfully employed to modify hydroxyapatite (HAP) nanoparticles with poly(methyl methacrylate) (PMMA). The peroxide initiator moiety for reverse ATRP was covalently attached to the HAP surface through the surface hydroxyl groups. Reverse ATRP of methyl methacrylate (MMA) from the initiator-functionalized HAP was carried out, and the end bromide groups of grafted PMMA initiated ATRP of MMA subsequently. Fourier transformation infrared (FTIR) spectroscopy, thermal gravimetric analysis (TGA) and transmission electron microscopy (TEM) were employed to confirm the grafting and to characterize the nanoparticle structure. The grafted PMMA gave HAP nanoparticles excellent dispersibility in MMA monomer. As the amount of grafted PMMA increased, the dispersibility of surface-grafted HAP and the compressive strength of HAP/PMMA composites were improved. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：415 / 421
页数：7
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