DETERMINATION AND CHARACTERIZATION OF UNREACTED HYDROXYL-GROUPS IN A CROSS-LINKED POLY(ORTHO ESTER)

被引：0
|
作者：
STONG, JD
WITCHEYLAKSHMANAN, LC
机构：
[1] Merck Research Laboratories, West Point
来源：
ANALYTICAL CHEMISTRY | 1994年 / 66卷 / 20期
关键词：
D O I：
10.1021/ac00092a033
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method is presented for the identification and quantitative determination of unreacted hydroxyl groups in a cross-linked poly(ortho ester) derived from the diketene acetal 3,9-bis(ethylidene-2,4,8,10-tetraoxaspiro[5.5]undecane), (+/-)-1,2,6-hexanetriol, 1,6-hexanediol, and tetraethylene glycol. This method involves exhaustive derivatization of unreacted hydroxyl groups in the intact polymer in advance of mild hydrolysis followed by gradient HPLC analysis. Each of the derivatized polymer components was synthesized and characterized, and evidence is presented demonstrating that exhaustive derivatization has occurred.
引用
收藏
页码：3505 / 3511
页数：7
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