Citation: Jun-fang Li, Yi-jie Lu, Guang-zhao Zhang. THE OBSERVATION OF INTERNAL MOTION OF LINEAR POLYSTYRENE CHAINS IN CYCLOHEXANE AROUND θ TEMPERATURE[J]. Chinese Journal of Polymer Science, ;2008, 26(6): 775-781. shu

THE OBSERVATION OF INTERNAL MOTION OF LINEAR POLYSTYRENE CHAINS IN CYCLOHEXANE AROUND θ TEMPERATURE

Received Date: 7 November 2007
Revised Date: 7 January 2008

A high molecular weight (Mw = 1.85 × 107) polystyrene (PS) with narrow distribution was prepared by high vacuum anionic polymerization in tetrahydrofuran. By use of dynamic light scattering, the dynamics of PS chains in cyclohexane was studied around the θ temperature. For the first time, we have observed the internal motion of polymer chains in solutions below the θ temperature by using dynamic light scattering at smaller angles (even qRg 1).
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