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A NEW TYPE OF CROWN FUNCTIONALIZED POLYSILOXANE AND ITS PLATINUM COMPLEX
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作者 陈远荫 洪利武 +1 位作者 李军 卢雪然 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1993年第1期54-58,共5页
A new type of crown functionalized polysiloxane, in which the crown moieties were incorporated into main chain, and its platinum complex were synthesized. The polysiloxane was synthesized from 3, 16-dihydroxy-1- thia ... A new type of crown functionalized polysiloxane, in which the crown moieties were incorporated into main chain, and its platinum complex were synthesized. The polysiloxane was synthesized from 3, 16-dihydroxy-1- thia - 5, 8, 11, 14- tetraoxacycloheptadecane via etheritication with ω-chloroundecene, followed by hydrosilylation with triethoxysilane, cohydrolysis with D_4, sequentially. Treating the polysiloxane with potassium cholroplatinite, the title complex was obtained. It was found that the platinum complex exhibited high catalytic activity in the hydrosilylation of olefins with triethoxysilane. 展开更多
关键词 functionalized polysiloxane Thiacrown ether Platinum complex Hydrosilylation catalyst
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CROWN FUNCTIONALIZED LINEAR POLYSILOXANE PLATINUM COMPLEX AS HYDROSILYLATION CATALYST
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作者 陈远荫 卢雪然 +1 位作者 龚淑玲 张宝莲 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1994年第4期352-357,共6页
A modified method of preparing crown functionalized linear polysiloxane has been described.4'-allylbenzo-15-crown-5 was subjected to hydrosilylation with methyldichlorosilane,followed bypolycondensation with silan... A modified method of preparing crown functionalized linear polysiloxane has been described.4'-allylbenzo-15-crown-5 was subjected to hydrosilylation with methyldichlorosilane,followed bypolycondensation with silanol-terminated polydimethylsiloxane to give the title crownfunctionalized linear polysiloxane. It was found that the polysiloxane could be coordinated withplatinum salt to form platinum complex, which could catalyze the hydrosilylation of olefins withtriethoxysilane efficiently. 展开更多
关键词 functionalized polysiloxane Crown ether Platinum complex Hydrosilylation catalyst Polymeric crown ether
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Silica-supported Polysiloxanes with Dithiacrown Ether Groups and Their Platinum Complexes 被引量:1
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作者 CHEN Yuan-yin, LU Xue-ran and SONG Xiao-ping(Department of Chemistry, Wuhan University, Wuhan, 430072) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1992年第4期439-444,共6页
The present paper represents the syntheses of polypropyloxymethyldithia 15-crown-5 and 18-crown-6 supported on silica and their platinum complexes. The platinum complexes are effective catalysts for the hydrosilylatio... The present paper represents the syntheses of polypropyloxymethyldithia 15-crown-5 and 18-crown-6 supported on silica and their platinum complexes. The platinum complexes are effective catalysts for the hydrosilylation of olefins with triethoxysilane. The influences of temperature, amount of platinum complexes used and the nature of olefins used on the catalytic activity of the complexes are also investigated in this paper. 展开更多
关键词 functionalized polysiloxane Thiacrown ether Platinum complex Hydrosilyla-tion catalyst
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SYNTHESIS AND CATALYTIC BEHAVIOR OF POLYSILOXANESUPPORTED FULLERENE PLATINUM OR RHODIUM COMPLEXES
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作者 陈远荫 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1999年第5期441-446,共6页
Two polysiloxanes with pendant fullerene moieties and their platinum or rhodium complexes have been prepared from C-60 via amination with omega-decenylamine, followed by hydrosilylation with triethoxysilane and immobi... Two polysiloxanes with pendant fullerene moieties and their platinum or rhodium complexes have been prepared from C-60 via amination with omega-decenylamine, followed by hydrosilylation with triethoxysilane and immobilization on fumed silica or by hydrosilylation with methyldichlorosilane and polycondensation with polydimethylsiloxanol, and then by reacting them with potassium chloroplatinite or rhodium chloride in acetone respectively under argon atmosphere. It was found that the four noble metal complexes are effective catalysts for the hydrosilylation of olefins with triethoxysilane. The regioselectivity of platinum complexes for styrene increases remarkably by introducing C-60 moiety. Factors influencing catalytic activity and the mechanism have been investigated. 展开更多
关键词 functionalized polysiloxane FULLERENE hydrosilylation catalyst regioselectivity hydrosilylation mechanism
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Film Morphology,Emulsification of Dodecyl/Carboxyl Modified Polysiloxane and Its Application Performance on Cotton Fabrics 被引量:6
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作者 安秋凤 门靖 +3 位作者 王科峰 丁洋 亢玲娟 刘爽 《Journal of Donghua University(English Edition)》 EI CAS 2011年第4期375-378,共4页
The film morphology of dodecyl/carboxyl modified polysiloxane(RCAS) on cotton fabric or the silicon wafer was investigated and characterized by field emission scanning electron microscopy(FESEM),atomic force microscop... The film morphology of dodecyl/carboxyl modified polysiloxane(RCAS) on cotton fabric or the silicon wafer was investigated and characterized by field emission scanning electron microscopy(FESEM),atomic force microscope(AFM),and Fourier transform infrared spectrometer(FTIR).Experimental results indicate that RCAS is a good film forming material on different substrates.Relatively smooth film was formed on cotton fabric surface,on which the grooves disappeared.In addition,RCAS formed a micromorphology inhomogeneous and unsmooth film on the silicon wafer.Many high or low bright peaks distributed randomly on the film surface,especially as the field was 2μm×2 μm and the date scale was 5 nm in AFM observation.Then RCAS was emulsified with nonionic surfactant alkyl polyoxyethylene ether in order to achieve a transparent organosilicon emulsion-RCAS emulsion(RCSE),which possessed good stability.The properties of RCSE and its application performance on cotton fabrics were investigated and characterized by transmission electron microscope(TEM),particle size analysis,and voltage test instrument.The results show that the average particle size of RCAS emulsion is 28.32 nm,while the ζ voltage is-37.88 mV.Compared with untreatd cotton fabric,the softness of treated fabric can be improved with RCSE to a certain extent.At the same time,the fabric treated with RCSE acquires unique fluffy and soft handle. 展开更多
关键词 amino functional polysiloxane carboxyl containing polysiloxane film morphology polysiloxane emulsion cotton fabrics
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