The Influence of Block Copolymers on Silica-Filled Polyisoprene
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ABSTRACTThe influence of PDMS-polyisoprene diblock copolymers on the dynamic rheological properties of silica-filled uncured polyisoprene was investigated. Unlike binary silica-polyisoprene systems, the ternary systems in our study showed a decrease in low-amplitude dynamic storage modulus (G') with room-temperature storage time. This aging behaviour is accompanied by an increase in the concentration PDMS segments at the filler-polymer interface, as measured by solid-state 1H NMR. The decrease in G' is thus attributed to a progressive disruption of a filler-filler network by selective block copolymer adsorption onto the filler surface.
2012 ◽
Vol 103
(8)
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pp. 948-954
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2020 ◽
Vol 41
(3)
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pp. 131-152
1981 ◽
2013 ◽
Vol 46
(50)
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pp. 505307
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2011 ◽
Vol 76
(4)
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pp. S262-S268
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