Copolymerization of cellulose with methacrylic acid by the xanthate process

Puissant, L.J.; Hornof, V.

doi:10.1021/i300001a017

Ind. Eng. Chem. Prod. Res. Dev.

1981

DOI: 10.1021/i300001a017

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Copolymerization of cellulose with methacrylic acid by the xanthate process

L.J. Puissant¹,

V. Hornof²

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1983

1984

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Effect of stirring on cellulose graft copolymerization

Graczyk

Hornof

1983

J of Applied Polymer Sci

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SynopsisDissolving pulp was grafted with several monomers ranging from hydrophilic (dimethylaminoethyl methacrylate) to hydrophobic (styrene). The conversion of these monomers to polymer and copolymer was investigated in dependence on the number of revolutions of the agitator. The formation of grafted copolymer was found to be strongly influenced by stirring. For all the monomers employed, almost no copolymer was formed above 400 rpm. The formation of homopolymer was also severely reduced at higher stirring speeds. For some monomers, a maximum was obtained at about 200-300 rpm with both copolymer and homopolymer yields dropping off sharply at both lower and higher stirring speeds. The position of this maximum was affected by the size of the reactor. The behavior displayed by the xanthate-Fez+-Hz02, Fe2+-Hz02, and ceric ion initiation systems was very similar. Also, monomer solubility in water seemed to have little importance in determining the general behavior.

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Effect of stirring on cellulose graft copolymerization

Graczyk

Hornof

1983

J of Applied Polymer Sci

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Effect of stirring on cellulose graft copolymerization. III. Acrylic and methacrylic monomers

Graczyk¹,

Hornof

1984

J of Applied Polymer Sci

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SynopsisAcrylate and methacrylate monomers were grafted onto dissolving pulp by the xanthate process. All the nine monomers tested showed a well-defined dependence of conversion on stirring speed. Total conversion and conversion to copolymer vs. agitator speed curves for each monomer were very similar in shape, but they varied widely from monomer to monomer. For the homologous series acrylate and methacrylate esters, optimum stirring speed was found to increase with increasing the size of the alkyl group. The breadth of the maximum also depended on the type of monomer. Monomers partially soluble in water forming water-insoluble polymers were found to be the most reactive.

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Graft copolymerization onto cellulosics

Bhattacharyya

Maldas

1984

Progress in Polymer Science

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Copolymerization of cellulose with methacrylic acid by the xanthate process

Cited by 3 publications

References 4 publications

Effect of stirring on cellulose graft copolymerization

Effect of stirring on cellulose graft copolymerization

Effect of stirring on cellulose graft copolymerization. III. Acrylic and methacrylic monomers

Graft copolymerization onto cellulosics

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