Investigation of allyl-capped carbosilane dendrimers used as crosslinker for silicone rubber

High‐temperature vulcanized silicone rubber was prepared by using allyl‐capped carbosilane dendrimers, in which the core molecules were Si(CH2CHCH2)4 and Ph2Si(CH2CHCH2)2 as crosslinker and nanoscale reinforcing filler, respectively. Allyl‐capped carbosilane dendrimers improved the mechanical prop...

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Veröffentlicht in:	Journal of applied polymer science 2006-05, Vol.100 (3), p.1772-1775
Hauptverfasser:	Zhao, Shigui, Zhou, Chuanjian, Zhang, Jianming, Wang, Jin, Feng, Shengyu
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chemical modifications crosslinking dendrimers Exact sciences and technology Inorganic and organomineral polymers mechanical properties nanoscale reinforcing filler Physicochemistry of polymers silicone rubber
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Zusammenfassung:	High‐temperature vulcanized silicone rubber was prepared by using allyl‐capped carbosilane dendrimers, in which the core molecules were Si(CH2CHCH2)4 and Ph2Si(CH2CHCH2)2 as crosslinker and nanoscale reinforcing filler, respectively. Allyl‐capped carbosilane dendrimers improved the mechanical properties of silicone rubber. The optimum tensile strength and tear strength were 9.6 MPa and 31.0 kN/m, respectively, when using SiGn(allyl)m as the crosslinker and 10.1 MPa and 32.0 kN/m, respectively, when using Ph2SiGn(allyl)m as the crosslinker. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 1772–1775, 2006
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.23034