摘要：

Soluble poly(2,2-diethoxyethyl methacrylate) (1a) was prepared by radical polymerization in solution. Copolymers from 2,2-diethoxyethyl methacrylate (3a), 2-hydroxyethyl methacrylate (4) and ethylene dimethacrylate (5) were prepared by suspension polymerization in the form of crosslinked beads (50–220 μm in diameter, specific surface area up to 38 m2/g). Acetal groups of these polymers resist direct hydrolysis, but can be transacetalized. Soluble poly(3,3-diethoxypropyl methacrylate) (1b) was prepared by radical polymerization in solution. Copolymers with 4 and 5 were prepared by suspension polymerization in the form of crosslinked beads (30 – 140 μm in diameter; specific surface area up to 46 m2). The polymers readily under go quantitative transcacetalization. Soluble poly(2-formylethyl methacrylate) (8) was prepared by radical polymerization in solution. Copolymers of 2-formylethyl methacrylate (7) with 4 and 5 were prepared by suspension polym

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