Synthesis and properties of silicon-containing maleimide polymers based onN-(trimethylsilyl)maleimide

✍ Scribed by Ahn, Kwang-Duk; Chung, Chan-Moon; Jo, Hyoung-Suk; Rhee, John M.

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 98 KB
• Volume: 47
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(199812)47:4<407::aid-pi76>3.0.co;2-z

✦ Synopsis

N-(Trimethylsilyl)maleimide (TMSMI) has been polymerized with various styrenic monomers (XSt) in the presence of a radical initiator to give high-molecular-weight, alternating copolymers in high yields. The copolymers P(TMSMI/XSt) have high glass transition temperatures above 200¡C and thermal decomposition temperatures in the range 320È360¡C. The thermal and acidolytic deprotection of trimethylsilyl (TMS) groups of TMSMI units in the copolymers have been investigated. UV irradiation and subsequent heating of a Ðlm of P(TMSMI/t-BOCSt) containing a photoacid generator resulted in deprotection of the protecting groups by the photogenerated acids, thereby causing a signiÐcant change in solubility of the polymer. Thus positive image patterns were obtained with P(TMSMI/t-BOCSt) by photolithographic processes.

of Chemical Industry