摘要
以邻烯丙基苯酚为酚源,二氨基二苯基甲烷为胺源合成了3,3′-苯基甲基双(3,4-二氢-8-烯丙基-2H-1,3-苯并噁嗪)(简称BAB)。采用傅里叶变换红外光谱、核磁共振氢谱对BAB的结构进行了表征;利用差示扫描量热仪对其热固化行为进行了研究。结果表明:噁嗪环和烯丙基双键的反应存在不同的反应机理,噁嗪环的开环反应先于烯丙基双键的加成反应;所得聚合物的玻璃化转变温度为140℃;800℃时,残炭保持率为33%。
A novel kind of allyl-containing benzoxazine, 3,3＇-phenylmethylbis （3,4-dihydro-8-allyl-2H-1,3-benzoxazine） （BAB）, was synthesized with orthoallylphenols and diamine diphenyl methane in toluene solvent. The structure of BAB was eharaeterized by Fourier transform infrared speetroseopy（FTIR） and hydrogen nuelear magnetic resonance speetroseop（IH-NMR）, and the curing behavior of BAB was investigated by means of differential scanning ealorimetry（DSC）.The results indieate that there are two different reaetion mechanisms with the ring opening reaetion of oxazine ring earlier than the double bond addition reaction of allyl group. The glass transition temperature of the resultant polymer obtained from the benzoxazine is 140℃, and the carbon residue eonservation rate is 33% at 800 ℃.
出处
《合成树脂及塑料》
CAS
北大核心
2009年第4期21-24,共4页
China Synthetic Resin and Plastics
基金
国家自然科学基金资助项目(50873062)
关键词
苯并噁嗪
烯丙基
热固性
耐热性
benzoxazine
allyl group
thermoset
thermal resistanee
