Abstract
The properties of segmented-copolymer-based H-bonding and non-H-bonding crystallisable segments and poly(tetramethylene oxide) segments were studied. The crystallisable segments were monodisperse in length and the non-hydrogen-bonding segments were made of tetraamidepiperazineterephthalamide (TPTPT). The polymers were characterised by DSC, FT-IR, SAXS and DMTA. The mechanical properties were studied by tensile, compression set and tensile set measurements. The TPTPT segmented copolymers displayed low glass transition temperatures (Tg, −70 °C), good low-temperature properties, moderate moduli (G′ ≈ 10–33 MPa) and high melting temperatures (185–220 °C). However, as compared to H-bonded segments, both the modulus and the yield stress were relatively low.
| Original language | English |
|---|---|
| Pages (from-to) | 492-501 |
| Journal | Macromolecular materials and engineering |
| Volume | 294 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- Properties
- Block copolymers
- Monodisperse
- H-bonding
- Piperazine
- Crystallization
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