毛管浸透法による表面張力測定を利用したポリスチレンとヒドロキシベンゾフェノン固定化シリカゲルフィラー間の界面エネルギーの見積もり

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タイトル別名
  • Evaluation of interfacial adhesion energy between polystyrene and silica gel-filler immobilizing hydroxybenzophenone by use of surface tension analysis by wicking method
  • モウカン シントウホウ ニ ヨル ヒョウメン チョウリョク ソクテイ オ リヨウ シタ ポリスチレン ト ヒドロキシベンゾフェノン コテイカ シリカゲル フィラー カン ノ カイメン エネルギー ノ ミツモリ

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説明

Hydroxybenzophenone group (Hbp)-immobilized silica gel-fillers (1) acting as UV-absorber were prepared. Surface tensions (γ) of 1 were measured by the wicking method. The interfacial adhesion energy (W) of the composites (l/PS) between 1 and the polystyrene (PS) was calculated using the dispersive component (γ^D) and the polar component (γ^P) of γ according to the equation described below where subscripts m and f mean matrix and filler, respectively. The W values of the l/PS composites were considerably smaller than those of the parent SiO_2/PS composite. A good correlation between W and glass transition temperature (T_g) showed that an introduction of Hbp groups on SiO_2 was effective for enhancement of adhesion between the 1 and matrix polymer. W=2√<γ^D_f・γ^D_m>+2√<γ^P_f・γ^P_m>

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