DETAILED DESCRIPTION What is claimed is: 1.
A block copolymer, the block copolymer being of the configuration AB or ABA, the block A being a polymer of N-methyl, N-phenyl acrylamide and B is a block of an anionically polymerizable monomer composition wherein the proportion of A to B by weight is from 1:99 to 99:1 and the weight average molecular weight of the block copolymer is from about 500 to 50 million.
2.
A block copolymer, the block copolymer being of the configuration AB or ABA, the block A being a polymer of a monomer of the general formula: ##STR4## wherein R.
sub.
1 and R.
sub.
2 are individually selected from the group consisting of alkyl radicals, cycloalkyl and alkyl substituted cycloalkyl radicals, aromatic, alkylaromatic and arylalkyl radicals with the further limitation that each of said radicals contains from 1 to 10 carbon atoms and is monovalent, and B is a block of a polymerized 2-ethylhexyl methacrylate composition wherein a proportion of A to B by weight is from 1:99 to 99:1 and the weight average molecular weight of the block copolymer is from about 500 to about 50 million.
Description:
This invention relates to polymers of N,N-disubstituted acrylamides.
Polymers and copolymers of N,N-disubstituted acrylamides have been known in the art.
U.
S.
Pat.
No.
2,914,498 discloses latex copolymers of vinyl chloride which have been thickened by the use of water-soluble polymers of N,N-dialkylacrylamides.
Polymer alloys have been prepared of a vinyl chloride polymer and ethylene dialkylacrylamide copolymers, and are disclosed in U.
S.
Pat.
No.
3,798,289.
British patent No.
855,741 discloses a polymerization of N-alkyl and N,N-dialkyl as well as N,N-alkylcycloalkylacrylamide derivatives in a hydrocarbon solvent employing an organolithium initiator.
British patent No.
883,494 discloses the polymerization of N,N-disubstituted acrylamides with various monomers in hydrocarbon solvents or inert ethers using hydrides or organo-metallic compounds of Group 1A of the Periodic Table
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Molecular Biology 
