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Citation: Wang Jian, Shen Jiacong, Zhang Yanshou, Liu Jingjiang. ENTANGLEMENT AND RELAXATION MECHANISM OF STAR-SHAPED POLYSTYRENES[J]. Chinese Journal of Applied Chemistry, ;1988, 5(5): 16-20. shu

ENTANGLEMENT AND RELAXATION MECHANISM OF STAR-SHAPED POLYSTYRENES

1.
1. Department of Chemistry, Jilin University, Changchun;
2.
2. Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 26 June 1987
Available Online: 25 November 1987
Fund Project:

The relaxation spectra of a set of star-shaped polystyrenes with the equal length of arms but different branching degree were determined by means of a stress relaxation instru-ment.The effect of branching structure on the rubbery plateau in the relaxation spectra was investigated,and the relaxation spectra were computer simulated using a "tube" model.The difference in viscoelastic properties of star-shaped polystyrenes were interpreted in terms of molecular motion.
- Star-shaped polystyrene,
- Viscoelasticity,
- Mechanical relaxation
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