T. Kitayama, T. Kawauchi, Maiko Nakamura
Jul 12, 2004
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0
Influential Citations
11
Citations
Journal
Polymer
Abstract
Abstract A cyclobutene monomer, methyl cyclobutene-1-carboxylate (MHCB), has been polymerized by anionic addition polymerization. Although MHCB may be regarded as a member of α,β-disubstituted acrylate derivatives which are reluctant to undergo anionic addition polymerization, anionic polymerization of MHCB with tert -butyllithium ( t -BuLi) in combination with bis(2,6-di- tert -butylphenoxy)ethylaluminum [EtAl(ODBP) 2 ] in toluene at −78 °C gives a polymer consisting of 1,2-linked cyclobutane ring in the main chain with narrow molecular weight distribution. Copolymerization of MHCB and methyl methacrylate with t -BuLi/EtAl(ODBP) 2 proceeds in a monomer-selective and living manner to form a block-like copolymer. Poly(MHCB) undergoes unique thermal reaction through ring opening of the cyclobutane units to form CC bonds between successive monomer units.