Abstract
Thermally stimulated shape memorypolymers (SMP) are defined by their ability to store and recoverstrains when subjected to a particular thermo-mechanical cycle. The thermo-mechanical behavior of SMPs can be tailored by modifying the molecular structure of the polymer. In this article, the shape memory behavior of thermoplastic segmented polyurethane (TSPU) as a function of hard segment (HS) has been reported. The experimental results showed that tailoring of hard and soft segment is extremely necessary for TSPU showing shape memory behavior. The thermo-mechanical properties of TSPU with four different concentrations of hard segment viz. 58.7, 47.9, 37.5, and 31.0% have been studied in this article. TSPU with 58.7% of hard segment content would not able to elongate even up to 30% in experimental condition. However, all other three samples show good shape memory behavior.
| Original language | English |
|---|---|
| Pages (from-to) | 939-942 |
| Number of pages | 4 |
| Journal | Polymer - Plastics Technology and Engineering |
| Volume | 46 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2007 |
Keywords
- Hard segment
- Shape fixity
- Shape recovery
- Thermoplastic segmented polyurethane
ASJC Scopus subject areas
- Polymers and Plastics
- Materials Science (miscellaneous)
- General Chemical Engineering
- Materials Chemistry