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Citation: Song Mingshi, Shen Yiding, Reng Zhiyun. ON THE DEGREE OF PHASE SEPARATION OF TPUE[J]. Chinese Journal of Applied Chemistry, ;1989, 6(5): 47-50. shu

ON THE DEGREE OF PHASE SEPARATION OF TPUE

1.
1. Research Institute of Polymeric Materials, Beijing Institute of Chemical Technology;
2.
2. Department of Applied Chemistry. University of Science and Technology of China, Hefei

Received Date: 15 October 1988
Available Online: 17 March 1989

The degree of phase separation of thermoplastic polyurethane elastomers (TPUE) has been studied by means of DMA and DSC measurements. The influence of hard segment content, molecular peight of soft segment on the degree of phase separetion of TPUE and the dependence of |△E'/△T|,△α_s,1/2 in the α_s,1/2 transition range on W_h have also been investigeted.Tt is found that there exist a lincar relation between |△E'/△T|,△α_s,1/2,1/tanδ,(△C_p2)/(△C_p1) and W_h.
- Polyurethane elastomer,
- Phase separation,
- Dynamic mechanical analysis,
- Differential scanning calorimetry
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