摘要
对聚乙二醇单甲醚(mPEG)端羟基进行改性,将其单端的单羟基改性为双羟基,得到了单端含有双羟基的聚乙二醇单甲醚共聚物。用傅立叶变换红外光谱(FT-IR)和核磁共振氢谱(1H-NMR)表征了共聚物的结构,采用差示扫描量热法(DSC)表征并分析了一定分子量的共聚物的储热性能。通过改性后mPEG的热分解温度提高了12.3℃。
In this paper, end-hydroxy of mPEG were modified from mono-hydroxy to di-hydroxy. The structure of copolymer were characterized via FT-IR, ^1H-NMR. And storage thermal properties of the copolymer molecular weight were characterized and analysed by DSC. The thermal decomposition temperature of modified mPEG was almost increased by 12.3 ℃.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2008年第12期160-163,共4页
Polymer Materials Science & Engineering
基金
齐齐哈尔市科技局项目(GY05-03)资助
关键词
聚乙二醇单甲醚
苯甲醛甘油缩醛
2
4-甲苯二异氰酸酯
改性
polyethylene glycol monomethyl ether
bezaldhyde glycol acetal
2, 4-toluene diisocyanate and dibutyltion dilaurate
modification
