無水マレイン酸処理液状ポリブタジエンのスチレン架橋ゴムに及ぼす充てん剤の効果〔モノマ-による液状ゴムの架橋と補強-3-〕

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In this paper, an adduct polymer was prepared by addition reaction of maleic anhydride with liquid hydroxy terminated polybutadiene (HT-PB) and some inorganic fillers were charged into the adduct polymer and the adduct polymer was cured with styrene.The crosslink reaction was inhibited remarkably in the presence of carbon black, therefore the mechanical properties of cured rubber obtained were poor. On the other hand, in the presence of white carbon or calcium carbonate, crosslink reaction proceeded smoothly and the mechanical properties of cured rubber became better.From the above results, it became apparent that functional groups on the surface of filler particle affected in-situ copolymerization of adduct polymer with styrene.