Abstract
A segmented copolyurethane containing diacetylene units in the hard segments has been analysed using modulated differential scanning calorimetry (m.d.s.c.). An endothermic peak is observed in the m.d.s.c. reversible heat flow curve at about 160°C which is due to an order-disorder transition of the paracrystalline diacetylene-containing hard segments. Such a transition is confirmed for the first time, since it was undetectable in previous conventional d.s.c. analysis.
Original language | English |
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Pages (from-to) | 981-983 |
Number of pages | 3 |
Journal | Polymer |
Volume | 38 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1997 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry
Keywords
- Diacetylene
- Hard segments
- Order-disorder transition
- Segmented copolyurethanes