Preparation of nano-HA/PLA composite by modified-PLA for controlling the growth of HA crystals

被引：26
|
作者：
Xiao, Yumei
Li, Dongxiao
Fan, Hongsong [1 ]
Li, Xudong
Gu, Zhongwei
Zhang, Xingdong
机构：
[1] Sichuan Univ, Engn Res Ctr Biomat, Chengdu 610064, Peoples R China
[2] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China
[3] Sichuan Inst Chinese Mat Med, Chengdu 610041, Peoples R China
来源：
MATERIALS LETTERS | 2007年 / 61卷 / 01期
关键词：
composite; nano-hydroxyapatite; interfacial interaction; poly(lactide); modify;
D O I：
10.1016/j.matlet.2006.04.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to control the growth of bydroxyapatite (HA) crystals and obtain nano-bydroxyapatite/poly(lactide) (n-HA/PLA) composite with interfacial interaction between the two phases, PLA surfaces were modified with poly(alpha-methacrylic acid) (PMAA) via photooxidization and UV induced polymerization. FTIR analysis showed that the PMAA was grafted onto the PLA surface and the grafting rate increased with the grafting time, The n-HA/PLA composites were synthesized by modified-PLA and characterized by FTIR, XRD and SEM. Several analyses suggested that the m-PLA could act as a template to manipulate the nucleation and growth of n-HA crystals, control the morphology and size of n-HA crystals as well as their distribution over the organic phase. (c) 2006 Elsevier B.V All rights reserved.
引用
收藏
页码：59 / 62
页数：4
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