IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS

Title: IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS

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Abstract

Polymers may be coated with radioinduced graft polymerization films by conducting the irradiation with the polymer in a gaseous phase composed of a mixture of the polymerizable monomer and a softening agent to increase the degree of grafting. This method of grafting is generally applicable to polymers of all kinds and unsaturated polymerizable monomers, and a list of such polymers and monomers is given. Eleven examples of this method are given in which glycol polyterephthalate, polyvinyl alcohol, and cellulose acetate are used as the base polymer; vinyl acetate, acrylonitrile, vinylmethyldichlorosilane, and methyl methacrylate are used as the monomer; and water, methylethyl ketone, alcohol, and benzene are used as softening agents. (D.L.C.)

Publication Date:: Sat Oct 01 00:00:00 EDT 1960

Research Org.:: Originating Research Org. not identified

OSTI Identifier:: 4129921

Report Number(s):: GB 850446

NSA Number:: NSA-15-000266

Resource Type:: Patent

Resource Relation:: Other Information: Orig. Receipt Date: 31-DEC-61

Country of Publication:: United Kingdom

Language:: English

Subject:: CHEMISTRY; ACETATES; ACRYLIC ACID; ALCOHOLS; ALKENES; BENZENE; CELLULOSE; COATING; FILMS; GASES; INDUCTION; IRRADIATION; KETONES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; PHTHALIC ACID; POLYMERIZATION; POLYMERS; POLYVINYLS; RADIATIONS; SILANES; VINYL RADICALS; WATER

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                    . IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS.  United Kingdom: N. p., 1960. 
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                    . IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS.  United Kingdom.

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                    . 1960.  
        "IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS".  United Kingdom.

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@article{osti_4129921,

  title        = {IMPROVEMENTS IN PROCESSES FOR GRAFTING ON POLYMERS},

  author       = {},

  abstractNote = {Polymers may be coated with radioinduced graft polymerization films by conducting the irradiation with the polymer in a gaseous phase composed of a mixture of the polymerizable monomer and a softening agent to increase the degree of grafting. This method of grafting is generally applicable to polymers of all kinds and unsaturated polymerizable monomers, and a list of such polymers and monomers is given. Eleven examples of this method are given in which glycol polyterephthalate, polyvinyl alcohol, and cellulose acetate are used as the base polymer; vinyl acetate, acrylonitrile, vinylmethyldichlorosilane, and methyl methacrylate are used as the monomer; and water, methylethyl ketone, alcohol, and benzene are used as softening agents. (D.L.C.)},

  doi          = {},

  url          = {https://www.osti.gov/biblio/4129921},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United Kingdom},

  year         = {Sat Oct 01 00:00:00 EDT 1960},

  month        = {Sat Oct 01 00:00:00 EDT 1960}

}

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A simple method is given for increasing the grafting values of vinyl polymers (especially polyvinyl chloride) which undergo radioinduced graft copolymerization. This method consists of subjecting the grafted polymer to further grafting operations, since the grafted polymer is still capable of absorbing a fresh quantity of vinyl monomer, although a longer time of contact is required. For example, a polymer of vinyl chloride grafted in a first operation to a grafting value of 33% with acrylonitrile can, by successive operations, reach a value of 200% and higher. (D.L.C.)
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