Precise Analysis of Polymer Rotational Dynamics.

摘要: Through the analysis of individual chain dynamics alongside corresponding molecular structures under shear via nonequilibrium simulations C178H358 linear and short-chain branched polyethylene melts flow, we observed that conventional method based on end-to-end vector (and/or gyration tensor chain) is susceptible to quantitatively inaccurate measurements often misleading information in describing rotational polymers. Identifying flaw as attributed strong irregular Brownian fluctuations inherent ends associated with their large free volume collisions, propose a simple, robust way center-to-center connecting two centers mass bisected chain, which shown adequately describe polymer without such shortcomings. We present further consideration proposed can be useful accurately measuring overall structure polymeric materials various architectures, including ring