Abstract
The spatial dependence of dynamics in a series of polyolefins was investigated using molecular dynamics simulations. A crossover in dynamic behavior, which is characteristic of glass transition, was observed and it disappeared at high temperatures. The crossover was related to a shift from vibrational to relaxational motion, or a crossover from independent to cooperative dynamics. Results show that the spatial region characteristic of interchain packing is very important in interpreting polymer dynamics.
Original language | English (US) |
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Pages (from-to) | 465-474 |
Number of pages | 10 |
Journal | Journal of Chemical Physics |
Volume | 120 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2004 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
- Physical and Theoretical Chemistry