Melt blends of SAN with SAN-graft-polybutadiene (PB)

0021-8995

Chemistry ; Polymer and Materials Science

Wiley InterScience Backfile Collection 1832-2000

Chemistry and Pharmacology

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Physics

Melt blends of SAN with SAN-graft-polybutadiene (PB) (g-ABS) were prepared in a Brabender plasticorder. The effect of g-ABS on the morphology and mechanical and viscoelastic properties of the blends was studied up to 60 wt % g-ABS. The brittle-tough (BT) transition occurred around 20 wt % g-ABS, and the viscosity increased monotonically with g-ABS, showing yield behavior at ≥ 20%. The lower and higher glass transition temperatures (Tg) of g-ABS, each corresponding to the Tg of PB and grafted SAN, decreased and increased with the addition of free SAN, and this was interpreted in terms of graft SAN - PB phase separation. © 1993 John Wiley & Sons, Inc.

10 Ill.

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