Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane

✍ Scribed by Yoshimoto Abe; Yuki Honda; Takahiro Gunji

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 128 KB
• Volume: 12
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/(sici)1099-0739(199810/11)12:10/11<749::aid-aoc782>3.0.co;2-2

✦ Synopsis

The preparation of organic-inorganic polymer hybrids consisting of carbon-carbon and siloxane chains was investigated by radical polymerization of 3-methacryloxypropyltrimethoxysilane (MAS) followed by acid-catalyzed hydrolytic polycondensation. The condensation of poly(3-methacryloxypropyltrimethoxysilane) (S-PMA) of various molecular weights M n = 830-12000 prepared by polyaddition provided transparent and flexible free-standing hybrid gel films. The mechanical properties of these films were highly dependent on the carbon-carbon chain length: with an increase in the carboncarbon chain length, the elasticity of gel films increased, while the tensile strength and Young's modulus decreased. Hydrolyzability of S-PMA decreased with an increase in the carbon-carbon chain length, resulting in the formation of rubber-like films with flexibility.