合成了一种主链带有萘炔基和苯基硅亚甲基的新型聚合物,通过IR和1H-NMR表征其结构,并对其固化反应进行了研究.与-C(R)H-类似,-Si(R)H-引入刚性聚合物主链可以增加链段柔顺性,降低刚性链间的作用力,但-Si(R)H-比-C(R)H-耐热性好,而且-SiH基团可以参与固化反应,因此该聚合物熔点低,可溶解于常见的有机溶剂,具有良好的加工性能.225℃固化时,通过-SiH-与-C≡C-间的硅氢化反应及-C≡C-与ph-C≡C-间的Diels-Alder反应,生成稠环交联网络,具有良好的耐热性能,在空气中的5%失重温度可达450℃.
参考文献
| [1] | H R Kricheldorf.Advanced in Polymer Science[M].Springer Acess,1999 |
| [2] | Ya ng C;Chen R .[J].Journal of Polymer Science Part A:Polymer Chemistry,2000,38:2082. |
| [3] | Itoh M;Iwata K;Ishikawa J et al.[J].Journal of POLYMER SCIENCE PART A:POLYMER CHEMISTRY,2001,39:2658-2669. |
| [4] | Kwak G.;Masuda T. .Synthesis and thermal properties of regio- and stereoregular poly(silylene-1,4-phenylenevinylene)s[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2001(15):1233-1236. |
| [5] | Kuroki S.;Kakigano T.;Ishikawa J.;Itoh M.;Okita K. .Thermosetting mechanism study of poly[(phenylsilylene)ethynylene-1,3-phenyleneethynylene] by solid-state NMR spectroscopy and computational chemistry[J].Macromolecules,1998(9):2804-2808. |
| [6] | Anastas P T;Stevenson R .[J].Journal of Natural Products,1991,54:1687. |
| [7] | Stevenson R;Weber J V .[J].Journal of Natural Products,1989,52:367. |
| [8] | Kishan K V R;Desiraju G E .[J].Journal of Organic Chemistry,1987,52:4640. |
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