Nanocomposites of a Silicon-containing Arylacetylene Resin with Octakis(dimethylsiloxy)octasilsesquoixane

武汉理工大学学报-材料科学版(英文版), 2015, (6): 1310-1316. doi: 10.1007/s11595-015-1313-4

ZHOU Yan ^1, , BU Xiaojun ^2, , HUANG Farong ^3, , DU Lei ^4, , LIANG Guozheng ^5,

1.Key Laboratory of Specially Functional Polymeric Materials and Related Technology East China University of Science and Technology, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

2.Key Laboratory of Specially Functional Polymeric Materials and Related Technology East China University of Science and Technology, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

3.Key Laboratory of Specially Functional Polymeric Materials and Related Technology East China University of Science and Technology, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

4.Key Laboratory of Specially Functional Polymeric Materials and Related Technology East China University of Science and Technology, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

5.Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

基金项目: the Shanghai Leading Academic Discipline Project(B502) the Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application

Nanocomposites of a Silicon-containing Arylacetylene Resin with Octakis(dimethylsiloxy)octasilsesquoixane

Keywords： silicon-containing arylacetylene resin

Nanocomposites (PMSEPE/Q8M8H) were prepared via solution blending of octakis(dimethylsiloxy)octasilsesquoixane (Q8M8H) into poly(dimethylsilyleneethynylenephenyleneethynyle ne) (PMSEPE). PMSEPE/Q8M8H nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, rheological measurement, differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). The experimental results show that the hydrosilylation reaction in PMSEPE/Q8M8H nanocomposites occurs slowly exceeding 180℃. PMSEPE/Q8M8H nanocomposites can be cured at temperatures less than 260℃and the cube structure of Q8M8H keeps stable during the curing process. POSS domains are evenly dispersed in the cured nanocomposite. However, serious aggregation of POSS occurs at 15%Q8M8H content. The thermal and thermooxidative stabilities of PMSEPE/Q8M8H nanocomposites obviously depend on the content of Q8M8H. The incorporation of Q8M8H can effectively enhance the thermal and thermooxidative stabilities of cured PMSEPE. PMSEPE/Q8M8H nanocomposites can be the candidates for applications in high temperature environment.

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Nanocomposites of a Silicon-containing Arylacetylene Resin with Octakis(dimethylsiloxy)octasilsesquoixane

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