Free radical polymerization process employing substituted amino acetic acid derivatives
AssigneeICI United States Inc.
InventorsKenneth H. Markiewitz, Alfred J. Restaino
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Abstract
Initiating compounds having the following formula: ##STR1## wherein R.sub.1 in an substituted or unsubstituted aryl radical and wherein R.sub.2 is hydrogen or alkyl are useful in initiating polymerization reaction of ethylenically unsaturated monomers susceptible to free radical polymerization.
Claims15
A polymerizable system susceptible to free radical polymerization which comprises one or more ethylenically unsaturated compounds and a salt of an initiator consisting essentially of a compound of the formula:
- ##STR5## wherein R.sub.1 is a substituted or unsubstituted aryl radical, and R.sub.2 is hydrogen or alkyl, which salt will yield a dissolved initiator compound of the said formula upon acidification, provided that the ethylenically unsaturated compounds to not contain any group with which the acid group of the initiator compound will preferentially react chemically.
A method of polymerizing a polymerizable system containing one or more ethylenically unsaturated compounds susceptible to free radical polymerization which comprises initiating polymerization by contacting the system with an effective amount of dissolved initiator consisting essentially of a compound of the formula ##STR6## where R.sub.1 is substituted or unsubstituted aryl radical, and R.sub.2 is hydrogen or alkyl provided that the ethylenically unsaturated compounds do not contain any group with which the acid group of the initiator will preferentially react chemically.
Dependencies are inferred from the claim text.