Production of modified polystyrene and its composites with...

Details Production of modified polystyrene and its composites with... Production of modified polystyrene and its composites with...

C - Chemistry, Metallurgy

08

L

400/1349, 400/20

C08L 1/02 (2006.01) C08F 251/02 (2006.01) C08F 257/02 (2006.01)

Patent

CA 2038735

ABSTRACT The present study dials with the of preparation of modified polystyrene (with a polar group) by reacting the polymy with maleic anhydride in the presence of a free radical initiator (benzoyl peroxide). The reaction was conducted in a roll mill at elevated temperatures. Composites comprising cellulose fiber and modified thermoplastics provided better results. The same properties improved when a coupling agent (e.g. isocyanate) was used. The composite products of cellulose fiber and polystyrene may be made with coupling agents such as maleic anhydride (along with an initiator)/phthalic anhydride/isocyanate or their mixtures.

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