期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Containing Silicon Large Group Substituted Acetylene Monomer Synthesis and Polymer Preparation
摘要/Abstract
应用2种实验方案合成了4-三甲基硅基苯乙炔(SPA)单体,采用核磁和傅里叶变换红外光谱(FT-IR)进行了表征.在金属铑络合物[Ph(nbd)Cl]2催化剂催化下制备了聚4-三甲基硅基苯乙炔Poly(SPA).当n(SPA)∶n(Et3N)∶n(Ph)=250∶250∶1时,Poly(SPA)收率及分子质量分布最好,分别达到88%和4.19.聚合物Poly(SPA)易溶于氯仿、甲苯等有机溶剂中.其成膜性较好,并具有较高的强度和热稳定性,热重分析测试5%,失重温度为300~310℃.
The use of two experimental scheme synthesized 4-trimethylsilylphenylacetylene(SPA)monomer, the monomer are characterized by the NMR and Fourier transform infrared spectroscopy(FT-IR). In[Rh(nbd)Cl2]2 catalysts poly 4-trimethylsilyl pheny- l acetylene(Poly(SPA))are prepared. There are the best molecular weight distribution and yield of polymer. When the n(SPA)Bn(Et3N)Bn(Rh)= 250B250B1 is 88 % and 4. 19 respectively, Poly(SPA)is soluble in chloroform, toluene and other organic solvents. It is a good film - forming, and has higher strength, TAG tested 5 % weight loss temperature is 300~310 e.