Process for the preparation of diazotized vinylphenol polymers having phototropic properties

Claim 2

A process for the preparation of a polymer having optical specificity which comprises the steps of copolymerizing vinylphenol with at least one vinyl monomer capable of copolymerizing with said vinylphenol in the presence of a radical polymerization initiator, dissolving the polymer so produced in an alkali solution, and adding at least one diazonium salt solution to the resulting solution to couple with the vinylphenol groups to form a polymer having optical specificity, said diazonium salt solution being selected from aniline derivatIves and naphthylamine derivatives, and said polymerization initiator being selected from the group consisting of azobis-isobutyronitrile and phenylazo-triphenylmethane.

Claim 3

A process for the preparation of a polymer having optical specificity which comprises the steps of dissolving vinylphenol in strong alkali solution, adding a diazonium salt solution dropwise thereto to form the monomeric coupled reaction product of said diazonium salt with said vinylphenol, recovering the thus produced monomer from said combined solution, and copolymerizing said monomer with at least one vinyl compound in the presence of a radical polymerization initiator to form a copolymer having optical specificity, said diazonium salt in said diazonium solution being selected from aniline derivatives or naphthylamine derivatives, and said diazonium salt being a diazonium salt of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphthylamine, and Beta -naphthylamine.

Claim 4

A process for the preparation of a polymer having optical specificity which comprises the steps of polymerizing vinylphenol in the presence of a radical polymerization initiator, dissolving the polymer so produced in an alkali solution, and adding at least one diazonium salt solution to the resulting solution to couple with the vinylphenol groups to form a polymer having optical specificity, said vinylphenol being selected from o-vinylphenol or m-vinylphenol, and said diazonium salt being a diazonium salt of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphthylamine, and Beta -naphthylamine.

Claim 5

A process for the preparation of a polymer having optical specificity which comprises the steps of copolymerizing vinylphenol with at least one vinyl monomer capable of copolymerizing with said vinylphenol in the presence of a radical polymerization initiator, dissolving the polymer so produced in an alkali solution, And adding at least one diazonium salt solution to the resulting solution to couple with the vinylphenol groups to form a polymer having optical specificity, said diazonium salt solution is selected from aniline derivatives and naphthylamine derivatives, and said diazonium salt is a diazonium salt of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphtylamine, and Beta -naphthylamine.

Claim 6

A phototropic polymer consisting essentially of a saturated hydrocarbon polymer chain having pendant phenol groups which are the coupled reaction products of phenol and at least one diazonium salt selected from the group consisting of the diazonium salts of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphthylamine, and Beta -naphthylamine, and said saturated hydrocarbon polymer chain being a polymer of vinylphenol.

Claim 7

A phototropic polymer consisting essentially of a saturated hydrocarbon polymer chain having pendant phenol groups which are the coupled reaction products of phenol and at least one diazonium salt selected from the group consisting of the diazonium salts of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphthylamine, and Beta -naphthylamine, and said saturated hydrocarbon chain being the homopolymer of vinylphenol.

Claim 8

A phototropic polymer consisting essentially of a saturated hydrocarbon polymer chain having pendant phenol groups which are the coupled reaction products of phenol and at least one diazonium salt selected from the group consisting of the diazonium salts of o-toluidine, m-toluidine, p-toluidine, 3,5-dimethylaniline, 3,4,5-trimethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, 3,5-dichloroaniline, 3,4,5-trichloroaniline, Alpha -naphthylamine, and Beta -naphthylamine, and said saturated hydrocarbon polymer chain being the copolymer of vinylphenol with at least one vinyl monomer selected from the group consisting of methyl acrylate, ethyl acrylate, tert-butyl acrylate, methyl methacrylate, vinyl acetate, acrylonitrile, vinyl chloride, styrene, ethyl vinyl ether, methyl vinyl ether, ethyl vinyl ether and butyl vinyl ether.