摘要
采用丙烯酸对端羟基超支化聚酯进行端基改性,使端基由羟基变成双键。并采用红外光谱和核磁氢谱对原料和产物的结构进行表征,证明得到了端基为双键的不饱和超支化聚酯,通过核磁氢谱的峰面积计算出基团的转化率在90%以上。该不饱和超支化聚酯有望应用于自由基反应的交联剂和光固化材料。
Hyperbranched polyesters were modified by acrylic acid,so that the hydroxyl end groups translated into double bonds.And raw materials and products were characterized by infrared spectroscopy and nuclear magnetic resonance（NMR）,the results showed the end-group translated into double bond,it means unsaturated hyperbranched polyester was synthesised.Useing NMR peak area,conversion was calculated,the conversion of different generation hyperbranched polyester were all above 90%.The unsaturated hyperbranched polyester may be used as crosslinking agent of free radical reactions and light curing materials.
出处
《化工新型材料》
CAS
CSCD
北大核心
2011年第5期103-104,123,共3页
New Chemical Materials
关键词
超支化
不饱和
双键
光固化
hyperbranching
unsaturating
double bond
light curing
