The polymerizable monomer, and polymer

PROBLEM TO BE SOLVED : To provide a polymerizable monomer having good compatibility with other vinyl ether monomer, especially non-silicone-based monomer, a cation polymerization catalyst, a photocleavable acid and a sensitizer, capable of conducting quick polymerization reaction in a homogeneous system and capable of manufacturing a polymer with high molecular weight, a manufacturing method therefor and a polymerizable monomer having high purity.SOLUTION : There is provided a compound represented by the formula (1). There are provided a method for manufacturing a compound represented by the formula (1) obtained by reacting organohydrogensiloxane and oligo ethylene oxide acrylate having unsaturated ether at another terminal and a polymer containing the compound as a polymerization component. (1), where k is 2 or 3, n is an integer of 1 to 2, Rand Rare each independently a C1 to 4 alkyl group.SELECTED DRAWING : None