Shape-memory polyurethanes (PUs) were synthesized by 4,4 -diphenylmethane diisocyanate (MDI), 1,4-butanediol (BD), and poly(tetramethyl oxide)glycol (PTMO). The morphology of PUs was studied using DSC, DMA, and TEM. The results indicated that the PUs would show different morphology by changing the m
Study on the liquefied-MDI-based shape memory polyurethanes
โ Scribed by Qi Cao; Shaojun Chen; Jinlian Hu; Pengsheng Liu
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 398 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
The shape memory behavior of a series of polycaprolactone/methane diisocyanate/ butanediol ( PCL /MDI /BDO) segmented polyurethanes of different composition was studied. The molecular weight of PCL diols was in the range of 1600 -7000, and the hard segment content varied from 7.8 to 27% by weight. F
Polyurethanes (PUs) of a suitable molar ratio of monomers were found to have shape-memory behavior. In this study, four series of PUs were synthesized by 4,4-diphenylmethane diisocyanate (MDI), 1,4-butanediol (BD), and various molecular weights of poly(tetramethylene oxide)glycol (PTMO) to study the