A molecular dynamics simulation study of the α- and β-relaxation processes in 1,4-polybutadiene
✍ Scribed by Grant D. Smith; Dmitry Bedrov
- Book ID
- 116669458
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 360 KB
- Volume
- 352
- Category
- Article
- ISSN
- 0022-3093
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## Abstract Amorphous polymers exhibit a primary (glass, or α‐) relaxation process and a low‐temperature relaxation process associated with polymer backbone motion usually referred to as the β‐relaxation process. The latter process can be observed below the glass transition temperature of the polym
## Abstract From high‐resolution dielectric spectroscopy measurements on 1,4‐polybutadiene (1,4‐PB), we show that in addition to the structural α‐relaxation and higher frequency secondary relaxations in the spectra, a nearly constant loss (NCL) is observed at shorter times/lower temperatures. The p
The correlation functions of a suspension of Lennard-Jones large particles in a model 1,4-cis-polybutadiene solvent have been investigated by molecular dynamics simulations. We present the effects of temperature, the degree of polymerization, and the solvent/large particle density on the effective i