POLYMERIZATION PROCESS USING ALLYLIC CHAIN TRANSFER AGENTS FOR MOLECULAR WEIGHT CONTROL, THE POLYMERS OBTAINED THEREBY AND CERTAIN NOVEL ALLYLIC COMPOUNDS

摘要

A compound of the formula wherein X is selected from hydrogen; optionally substituted aryl; COOR; Q is COOR1; Y is selected from hydrogen; methyl; ethyl; methyl substituted with optionally substituted aryl; Z is selected from COOR2; R3, R4 are independently selected from hydrogen and methyl; R is selected from ethyl and t-butyl; and R1, R2 are ethyl. 1281 כ" ג בסיון התשס" א - June 14, 2001