Conformational elasticity theory of chain molecule" proposed by our group was used to explore the contribution of internal energy to elastic force( f e/f ). 1,4 Polybutadiene( cis and tran ) were studied. The cal...Conformational elasticity theory of chain molecule" proposed by our group was used to explore the contribution of internal energy to elastic force( f e/f ). 1,4 Polybutadiene( cis and tran ) were studied. The calculated f e/f for cis polymer is consistent with experimental data, while a little difference for the trans polymer, which needs more experimental data to support. The results also show that f e/ f is dependent on chemical structure and strain.展开更多
Rubber elasticity theory is of fundamental importance in polymer science. The traditional theory is athermal, describing rubber deformation behavior as entropy elasticity without an internal energy contribution. It ha...Rubber elasticity theory is of fundamental importance in polymer science. The traditional theory is athermal, describing rubber deformation behavior as entropy elasticity without an internal energy contribution. It has been found experimentally, however, that the internal energy contribution is not zero. In the present study we have used conformational elasticity theory to calculate the internal energy contribution of polydimethylsiloxane (PDMS) and results obtained are consistent with a number of experimental observations.展开更多
文摘Conformational elasticity theory of chain molecule" proposed by our group was used to explore the contribution of internal energy to elastic force( f e/f ). 1,4 Polybutadiene( cis and tran ) were studied. The calculated f e/f for cis polymer is consistent with experimental data, while a little difference for the trans polymer, which needs more experimental data to support. The results also show that f e/ f is dependent on chemical structure and strain.
基金supported by the National Natural Science Foundation of China (29874035)
文摘Rubber elasticity theory is of fundamental importance in polymer science. The traditional theory is athermal, describing rubber deformation behavior as entropy elasticity without an internal energy contribution. It has been found experimentally, however, that the internal energy contribution is not zero. In the present study we have used conformational elasticity theory to calculate the internal energy contribution of polydimethylsiloxane (PDMS) and results obtained are consistent with a number of experimental observations.
