| 摘要 |
A HIGHLY POLYMERIZABLE N-VINYLCARBOXYLIC ACID AMIDE HAVING AN N-1, 3-BUTADIENYLCARBOXYLIC ACID AMIDE CONTENT OF 30 PPM OR LESS, A PROCESS FOR PRODUCING THE SAME, AND A PROCESS FOR PRODUCING A HOMOPOLYMER OF N-VINYLCARBOXYLIC ACID AMIDE OR A COPOLYMER THEREOF WITH ANOTHER COPOLYMERIZABLE MONOMER USING THE SAME. ALSO, A HIGHLY POLYMERIZABLE N-VINYL-CARBOXYLIC ACID AMIDE IS PRODUCED BY THERMAL CRACKING OR CATALYTIC CRACKING OF N-(1-ALKOXYETHYL) CARBOXYLIC ACID AMIDE OR ETHYLIDENEBISCARBOXYLIC ACID AMIDE, WHEREIN THE N-VINYL-CARBOXYLIC ACID AMIDE CONTENT OF THE N-(1-ALKOXYETHYL)-CARBOXYLIC ACID AMIDE OR ETHYLENEBISCARBOXYLIC ACID AMIDE IS 10 WTOR LESS.
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