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GRAFT COPOLYMERIZATION OF STYRENE TO POLYVINYL ALCOHOL FIBERS

Hiroshi Kawakami, Noboru Mori, Kenji Kawashima, Shigenobu Iura

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Abstract

Graft copolymerization of styrene to polyvinyl alcohol (PVA) films was attempted using potassium persulfate and α, α′ azo-bis-isobutyronitrile as initiator. In the presence of water, up to 700% styrene were grafted to films, whereas in the absence of water, no styrene was grafted. Furthermore, styrene was grafted to PVA fibers swelled with water at room temperature. Fibers obtained showed good resistance to hot-water, excellent elastic recovery at low elongation, and good heatsetting property.

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Graft copolymerization of styrene to polyvinyl alcohol (PVA) films was attempted using potassium persulfate and α, α′ azo-bis-isobutyronitrile as initiator. In the presence of water, up to 700% styrene were grafted to films, whereas in the absence of water, no styrene was grafted. Furthermore, styrene was grafted to PVA fibers swelled with water at room temperature. Fibers obtained showed good resistance to hot-water, excellent elastic recovery at low elongation, and good heatsetting property.

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Available abstract

Graft copolymerization of styrene to polyvinyl alcohol (PVA) films was attempted using potassium persulfate and α, α′ azo-bis-isobutyronitrile as initiator. In the presence of water, up to 700% styrene were grafted to films, whereas in the absence of water, no styrene was grafted. Furthermore, styrene was grafted to PVA fibers swelled with water at room temperature. Fibers obtained showed good resistance to hot-water, excellent elastic recovery at low elongation, and good heatsetting property.

Key concepts: Potassium persulfate, Styrene, Copolymer, Polyvinyl alcohol, Materials science, Elongation, Polymer chemistry, Grafting

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