Solid‐state grafting of succinic anhydride onto poly(vinyl alcohol) |
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Authors: | Zheng‐Fa Zhou Wei‐bing Xu Dian He Ji‐xian Fan Feng Yu Feng‐Mei Ren |
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Affiliation: | Department of Polymer Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009, China |
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Abstract: | The graft reaction of succinic anhydride onto poly(vinyl alcohol) (PVA) was catalyzed by p‐toluenesulfonic acid monohydrate in solid state. The infrared spectra and 1H‐NMR spectra confirmed that succinic anhydride was successfully grafted onto PVA backbone. The influences of reaction temperature, reaction time, the amount of succinic anhydride, and the amount of catalyst on the graft reaction were studied. Uncrosslinked PVA graft copolymer with grafting degree up to about 6.5% could be obtained under low reaction temperature, short reaction time, and low amount of catalyst, whereas crosslinked PVA with high gel content could be obtained under high reaction temperature, long reaction time, and high amount of catalyst. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 848–852, 2007 |
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Keywords: | poly(vinyl alcohol) graft copolymers succinic anhydride solid state |
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