ADHESIVES BASED BLOCK COPOLYMER (I)

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Other Title
  • ブロック共重合体をベースとする接着剤　Ｉ　　メタクリル酸メチルグラフト改質ブロック共重合体を用いた接着剤
  • メタクリルサン メチル グラフト カイシツ ブロック キョウジュウゴウタイ オ

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Abstract

The graft modification of a styrene-butadiene block copolymer (SBS) was carried out by the graft polymerization of methyl methacrylate (MMA), and the application to adhesives of this modified SBS (SBS-g-MMA) was investigated. It was found that a toluene solution of SBS-g-MMA was usable for the bond of plasticized poly(vinyl chloride) (PVC) to SBS, that the peel strength of this adhesive was compared favorably with toluene solution of SBS, poly-MMA and their blend, and that SBS-g-MMA was useful as an adhesive for various adherends. In the bond of plasticized PVC to plasticized PVC this adhesive was not usable, and the peeled surface turned like a sponge as the result of the migration of a plasticizer. SBS-g-MMA was also usable as a hot-melt adhesive. These adhesives were inferior in the heat durability, and their peel strength decreased with an increasing temperature. It was confirmed that a styrene-isoprene block copolymer modified by the graft polymerization of MMA was also useful as an adhesive.

Journal

  • NIPPON GOMU KYOKAISHI

    NIPPON GOMU KYOKAISHI 54 (3), 158-165, 1981

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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