| 主权项 |
1. An azetidinium-containing vinylic monomer, being represented by formula (2) in which:
R″ is hydrogen or methyl;p1, p2, and p3 independent of one another are zero or 1;Y4 is a linkage selected from the group consisting of a direct bond, —O—, —NR′—, —C(O)—NR′—, —NR′—C(O)—, —O—C(O)—NH—, —NH—C(O)—O—, —NR′—C(O)—NH—, —NH—C(O)NR′—, —C(O)—O—, —O—C(O)—, R′ is hydrogen, a C1-C20 unsubstituted or substituted, linear or branched alkyl group;Z4, is a direct bond, a C1-C20 unsubstituted or substituted, linear or branched alkylene divalent radical optionally containing therein one or more linkages of —O—, —NR′—, and —C(O)—, a C1-C7 alkyleneoxy C1-C7 alkylene divalent radical, or a divalent radical of —(CH(R″)CH2O)r1—CH(R″)CH2— in which R″ is as defined above and r1 is an integer of 1 to 20; andZ5 is a C1-C20 unsubstituted or substituted, linear or branched alkyl group, —(CH2)r2—O—(CH2CH2O)r1—Z6 in which r1 is as defined above, r2 is zero or an integer of 1 to 7, andZ6 is a C1-C5 alkyl. |
