Citation: JIA Mingchun, YAO Shuren. STUDY ON AB-CROSSLINKED POLYMERS Ⅰ. THE SYNTHESIS AND MECHANICAL PROPERTIES OF AB-CROSSLINKED POLYMERS BASED. ON PU/PS[J]. Chinese Journal of Polymer Science, ;1991, 9(4): 347-352. shu

STUDY ON AB-CROSSLINKED POLYMERS Ⅰ. THE SYNTHESIS AND MECHANICAL PROPERTIES OF AB-CROSSLINKED POLYMERS BASED. ON PU/PS

JIA Mingchun ,
YAO Shuren

Received Date: 5 January 1990

The AB-crosslinked polymers (i.e. ABCP) with polystyrene as chain A and vinyl group blocked prepolymers of polyurethanes (PU) as chain B were synthesized and studied. The results of dynamic mechanical spectrometry (DMS) show that the compatibility between the components A and B can be improved greatly through chemical crosslinking during the formation of ABCPs. This effect is especially pronounced when short chain prepolymers is chosen as one of the components. It is apparent that the degree of crosslinking between the two components palys a major role in determining their compatibility.Copolymerization of styrene with maleic anhydride in chain A can improve the compatibility and broaden the damping temperature range.Mechanical properties of the sythesized ABCPs were also studied.
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