%0 Journal Article
%T Effects of Poly(Ethylene Glycol) on Preparation of AmorphousCalcium Phosphate<br>聚乙二醇对合成无定形磷酸钙的影响
%A LI Yan-Bao
%A WENG Wen-Jian
%A CHENG Kui
%A DU Pi-Yi
%A SHEN Ge
%A HAN Gao-Rong
%A <br>李延报
%A 翁文剑
%A 程逵
%A 杜丕一
%A 沈鸽
%A 韩高荣
%J 无机材料学报
%D 2004
%I Science Press
%X A stable amorphous calcium phosphate (ACP) was prepared by a wet chemical method at a low temperature in the presence of poly(ethylene glycol) (PEG). The effects of PEG:CaCl2 ratios and the molecule weight of PEG on the stability of ACP in the aqueous solution were investigated. The results show that the optimized preparation conditions for stable ACP are PEG:CaCl2 ratio of 1:1 and the PEG molecule weight of 10000. The role of PEG in stabilizing ACP in the aqueous solution is that PEG is easy to exist in the interstices between the ACP Ca9(PO4)6 clusters and adsorbed around ACP particles, and inhibits ACP transformations to crystalline hydroxyapatite.
%K amorphous calcium phosphate
%K poly(ethylene glycol)
%K biomaterials<br>无定形磷酸钙
%K 聚乙二醇
%K 生物材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=47B1B7FD852DDB92&yid=D0E58B75BFD8E51C&vid=2A8D03AD8076A2E3&iid=CA4FD0336C81A37A&sid=D9AE183D3F5C3C75&eid=9CA95D22FC1D537C&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=3&reference_num=14