| 主权项 |
1. An emulsifier for emulsion polymerization comprising a compound represented by the following general formula (I): X=H, —(CH2)a—SO3M, —(CH2)b—COOM, —PO3M2, —P(B)O2M, or —CO—CH2—CH(SO3M)-COOM Y= Z= wherein in the general formula (I), R1 represents an alkyl group having from 1 to 4 carbon atoms; X represents a hydrogen atom or a group selected from anionic hydrophilic groups represented by the foregoing structural formulae, in these structural formulae, each of a and b represents a number of from 0 to 4, B represents a residue resulting from eliminating X from the general formula (I), and each M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium group, or an alkanolamine residue; Y represents a group selected from substituents represented by the foregoing structural formulae, a substitution number of which is any one of from 1 to 3, and in the structural formulae representing these substituents, R2 represents a hydrogen atom or a methyl group; Z represents a polymerizable unsaturated group represented by the foregoing structural formula, and in the structural formula representing this unsaturated group, R3 represents a hydrogen atom or a methyl group; each of A1 and A2 represents an alkylene group or a substituted alkylene group each having from 2 to 4 carbon atoms, or a residue derived from an alkyl glycidyl ether or an alkenyl glycidyl ether each having from 4 to 22 carbon atoms; and l represents a number in the range of from 0 to 5 as an average addition molar number of A1O; m represents a number in the range of from 1 to 2; and n represents a number in the range of from 0 to 100 as an average addition molar number of A2O. |
