| 摘要 |
PURPOSE:To provide a movel copolymer highly adhesive to dentin, free from toxic effect due to freeness of unreacted monomer, constituted by such monomer units as (meth)acrylic acid its alkyl ester, its hydroxyalkyl ester, and (meth) acryloxy-proyl compound. CONSTITUTION:The objective copolymer can be obtained by dispersing and dissolving in a volatile solvent such as ethanol (A) 5-30wt% of (meth) acrylic acid, (B) 20-60wt% of (meth) acrylic alkyl ester, (C) 20-60wt% of (meth) acrylic hydroxyalkyl ester, and (D) 0.2-20wt% of either acryloxypropyl or methacryloxypropyl trialkoxysilane, followed by polymerization using a catalyst such as 2,2'-azobisisobutylonitrile. This novel copolymer has formula (R<1> is 1-10C alkyl; R<2> is lower alkyl; R<3>-R<7> are each H or CH3, W, X, Y and Z are 5-30wt%, 20-60wt%, 20-60wt%, and 0.2-20wt%, respectively). USE:Applicable in the form of a dental adhesive coating base incorporated with 5-40wt%, on the total basis, of said copolymer. |
