Dangling polymer networks: Glass transition of PU elastomers
β Scribed by Yng-Long Lee; Po-Hou Sung; Hsin-Tzu Liu; Lain-Ching Chou; Wen-Hsiung Ku
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 362 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
A series of interpenetrating polymer networks (IPNs) of polyurethane/polystyrene (PU/PS; 90/10, 75/25, 60/40, and 50/50) have been synthesized by condensation reaction of castor oil with methylene diisocyanate and styrene, employing benzoyl peroxide as initiator. Polystyrene is extracted from IPNs b
The epoxy resin/polyurethane semi-IPN was prepared and the glass transition behavior of the semi-IPN was discussed with DSC and DMA methods. The results show that the two glass transition temperatures (T,) referring to epoxy resin and polyurethane respectively get closer. Between the two T, there ex