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10.1088/0964-1726/5/4/012Smart Mater. Struct., 5
- Publisher
- Springer Journals
- Copyright
- 2008 The Korean Fiber Society and Springer-Verlag Berlin Heidelberg GmbH
- ISSN
- 1229-9197
- eISSN
- 1875-0052
- DOI
- 10.1007/s12221-008-0062-9
- Publisher site
- See Article on Publisher Site
Abstract
Abstract A series of shape memory polyurethane (PU) copolymers synthesized from 1,4-phenyldiisocyanate (PDI), poly(tetramethyleneglycol) (PTMG), 1,4-butanediol (BD) as a chain extender, and glycerol as a cross-linking agent were tested for the mechanical properties and the shape memory effect at the temperature 20 °C above melting temperature (T m), and were compared with other PUs synthesized from 4,4′-methylene-bis-phenyldiisocyanate (MDI), PTMG, and BD. Mechanical properties and shape memory effect were improved substantially by adopting both PDI and glycerol. Interestingly, enthalpy of melting and T m were not affected by the glycerol content. Vibration and shock absorption ability was investigated by measuring both loss tan δ and storage modulus with dynamic mechanical analyzer (DMA).
Journal
Fibers and Polymers – Springer Journals
Published: Aug 1, 2008
Keywords: Polymer Sciences