摘要
研究采用漆酚与四氯化锡和四氯化硅制备漆酚硅锡聚合物的方法及其产物特性。红外光谱分析结果表明产物中漆酚邻酚基上存在Si—O键和Sn—O键 ;质谱测定结果它存在质荷比为 4 6 1的离子峰 ,与分子片段C2 1H3 0 O2 SiSn的式量相同 ;扫描电镜观测到含有亚微米粒子和少量纳米粒子 ;热谱和动态机械热分析表明 ,它比生漆有更高的热稳定性 ,在失量 5 0 %时相应温度为 5 5 6 .2℃ ,在 2 0～ 380℃范围 ,模量E′均在 98.6MPa以上 ;它还具有优良的耐化学介质腐蚀性能。产物可以通过热压成型或涂膜 。
The preparation method and characteristics of urushiol SiSn polymer,which was formed by reacting urushiol with SiCl 4 and SnCl 4 ,have been studied.IR results show that Si-O and Sn-O bonds exist in urushiol group of the product.MS results show that z/e is 461,corresponding to the molecular fragments C 21 H 30 O 2 SiSn.The submicron and nanometer particles were observed from SEM.DMTA and thermal spectral prove that the thermal stability of the product is higher than that of Chinese lacquer.Temperature of 50% weight loss is about 556?℃.Modulo E ' is above 98.6?MPa at 20～380?℃.The product has excellent anti corrosive properties.It can be moulded by thermal pressing or film coated to form a kind of material with properties of anticorrosion and heat resistance.
出处
《林产化学与工业》
EI
CAS
CSCD
2002年第1期7-11,共5页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目 (2 9874 0 0 9)
福建省自然科学基金
高分子材料工程国家重点实验室资助项目
