文献类型：期刊文献

英文题名：Preparation of poly(methyl methacrylate) grafted hydroxyapatite nanoparticles via reverse ATRP

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

年份：2011

卷号：360

期号：2

起止页码：415

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20112514074836);WOS:【SCI-EXPANDED(收录号:WOS:000292066100014)】；

基金：This research was supported by the Fundamental Research Funds for the Central Universities (WD0913008), "Shu Guang" Project of Shanghai Municipal Education Commission, Changjiang Scholars and Innovative Research Team in University (IRT0825).

语种：英文

外文关键词：Hydroxyapatite; Surface grafting; Reverse ATRP; Poly(methyl methacrylate)

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.