Latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers
AssigneeRohm and Haas Company
InventorsWilliam D. Emmons, Andrew W. Gross
Life of this patent
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Abstract
This invention relates to latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers. In addition, this invention relates to novel polymers and block copolymers formed using these latent thiol mercaptan chain transfer agents.
Claims8
A polymer comprising polymerized units of an ethylenically unsaturated monomer and having a terminal latent thiol functional group formed from a latent thiol mercaptan chain transfer agent wherein the latent thiol mercaptan chain transfer agent used to form the polymer has the general formula;
- ##STR5## wherein A is a polyvalent organic radical;
- x and y are positive integers such that x+y equals the valence of A;
- B is an organic acyl radical;
- and
- n and m are integers from 1 to 6.
A polymer comprising polymerized units of an ethylenically unsaturated monomer and having a terminal thiol functional group formed from a latent thiol mercaptan chain transfer agent wherein the latent thiol mercaptan chain transfer agent used to form the polymer has the general formula;
- ##STR6## wherein A is a polyvalent organic radical;
- x and y are positive integers such that x+y equals the valence of A;
- B is an organic acyl radical;
- and
- n and m are integers from 1 to 6.
Dependencies are inferred from the claim text.