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Synthesis and free radical polymerization of p-methylseleno- and p-phenylselenostyrenes

โœ Scribed by Tsugumichi Ando; Tae Seok Kwon; Akiko Kitagawa; Takahiro Tanemura; Shuji Kondo; Hideo Kunisada; Yasuo Yuki

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
383 KB
Volume
197
Category
Article
ISSN
1022-1352

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โœฆ Synopsis

Abstract

pโ€Methylselenostyrene (1) and pโ€phenylselenostyrene (2) as seleniumโ€containing vinyl monomers were prepared. Both monomers are readily polymerized free radically to afford the corresponding polymers having molecular weight of about 20 000 โˆผ 150 000. These homopolymers are stable below 300ยฐC. From the copolymerization with styrene, Q values of 1 and 2 were calculated to be 1,18 and 1,03, respectively. On the other hand, e values of these monomers are โˆ’0,24 and โˆ’0,04, respectively, indicating the electron withdrawing character of the seleno groups.

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