分岐高分子 II  AB2型グラフト共重合体の調製とその平衡凝集構造

書誌事項

タイトル別名
  • Branched Polymers. II. Preparation of Graft Copolymers of the AB2 Type and Their Equilibrium Structures in Bulk.
  • AB2ガタ グラフト キョウジュウゴウタイ ノ チョウセイ ト ソノ ヘイコウ ギョウシュウ コウゾウ

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Graft copolymers of the AB2 type were prepared with various compositions, in which A graft chains are branched at the center of B chains. Their equilibrium microphase-separated structures in bulk have been examined. Polystyrene (S) and poly (2-vinylpyridine) (P) are chosen as A and B components. So, the copolymers used in this study are named SP2. The phase diagram of SP2 graft copolymers is quite asymmetric and considerably different from that of SP diblock copolymers, reflecting the asymmetric nature of SP2 molecules. Lamellar microdomain spacing of SP2 is quantitatively smaller than that of diblock copolymers. Furthermore, the single chain dimension of a polystyrene graft has been measured. A graft chain is less deformed than a block chain with the same molecular weight in lamellar phase.

収録刊行物

  • 高分子論文集

    高分子論文集 57 (12), 803-809, 2000

    公益社団法人 高分子学会

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