16. (スチレン-α-メチルスチレン)・ブロック共重合体に関する研究 : I.(スチレン-α-メチルスチレン)・ブロック共重合体の合成とそのCharacterization

概要

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A "living" polymerization procedure for preparing block copolymers of styrene and α-methylstyrene was described. A number of the styrene-α-methylstyrene copolymers with-different molecular structure were prepared; (1) the block copolymers of B_mA_nB_m, A_<n'>B_m A_nB_mA_<n'>, B_mA_<n'>B_mA_nB_mA_<n'>B_m and A_<n'>B_mA_<n'>B_mA_nB_mA_<n'>B_mA_<n'> types (A; styrene monomer unit, B; α-methylstyrene monomer unit. m and n denote the number of the monomer units.) having the same composition (1:1 of A and B) and molecular weight (ca. 18×10^4), and (2) the copolymers of linear three block chains having the same composition and different monomer sequence length. The products were characterized by osmometry, light scattering measurements and gel permeation chromatography.
東京女子大学の論文
1971-03-25