1H MAS NMR Analysis of Epoxy Reaction in Deuterium Solution

被引：0
|
作者：
Asano, Atsushi [1 ]
机构：
[1] Natl Def Acad, Dept Appl Chem, Yokosuka, Kanagawa 2398686, Japan
来源：
KOBUNSHI RONBUNSHU | 2012年 / 69卷 / 05期
关键词：
H-1 MAS NMR; Curing Reaction; Epoxy; Bimolecular Reaction Model; TEMPERATURE; THERMOMETER;
D O I：
10.1295/koron.69.246
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We investigated the curing :reaction between epoxy and amino groups for water soluble polyglycerol polyglycidyl ether (PGPE) and poly e-L lysine (epsilon-PL). The curing reaction was detected by H-1 MAS NMR in deuterium oxide solution. The H-1 signal intensity of epoxy group changed with time elapsed. The change of the normalized intensity with reaction time was least-square fitted by assuming a simple bimolecular reaction. The obtained reaction rates were 0.026min(-1) at 50 degrees C and 0.113 min(-1) at 80 degrees C. The estimated activation energy, approximately 46 kJ mol(-1), showed a satisfactory agreement with the previously obtained value.
引用
收藏
页码：246 / 249
页数：4
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