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The networking of carbon black in high-density polyethylene melt has been traced by simultaneous electrical resistance (R) and dynamic storage modulus (G′) testing. Thermal-induced dynamic percolation was observed for both R and G′ as a function of annealing time. The influence of temperature and filler volume fraction on percolation times to R and G′ was investigated, and activation energies of dynamic...
Five series of binary copolymers, poly[2,5-di(ROOC)styrene-co-2,5-di(R′OOC)styrene]s (R=n-C 3 H 7 –, R′=C 2 H 5 –, n-C 4 H 9 –, and n-C 5 H 11 –; R=n-C 6 H 13 –, R′=n-C 4 H 9 –, and n-C 5 H 11 –), were synthesized via free radical polymerization. The random nature of the copolymers was expected...
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