| 摘要 |
Process for the preparation of trialkylsilylated carboxylate monomers of general formula (I) <CHEM> wherein R<1>, R<2>, R<3> each independently represent an alkyl or an aryl group, R<4> represents a hydrogen atom or a methyl group or -CH2-COOSiR<1>R<2>R<3> wherein R<1>, R<2>, R<3> are as already defined, R<5> represents a hydrogen atom, an alkyl group or -COOR<6> wherein R<6> represents an alkyl group or SiR<1>R<2>R<3> wherein R<1>R<2>R<3> are as already defined, which process comprises the steps of reacting: an acyloxysilane of formula (II) R<7>-COO-SiR<1>R<2>R<3> wherein R<1>, R<2>, and R<3> are as already defined above and, R<7> is a hydrogen atom, a C1-C3 alkyl group, a partially or totally hydrogenated C1-C3 alkyl group with an unsaturated carboxylic acid of formula (III), <CHEM> wherein R<4> is a hydrogen atom or a methyl group or CH2COOH and, R<5> has the same meaning as that defined above. |
