Thermoplastic polyurethane elastomers were prepared from 4,4-diphenylmethane diisocyanate (MDI)/1,4-butanediol (BD)/poly(propylene glycol) (PPG) and MDI/BD/poly(oxytetramethylene glycol) (PTMG). The MDI/BD-based hard-segment content of polyurethane prepared in this study was of 39 -65 wt %. These po
Thermal and mechanical properties of solution polymerized segmented polyurethanes with butadiene soft segments
β Scribed by B Bengtson; C Feger; W.J MacKnight; N.S Schneider
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 595 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
A series of polycaprolactone/4,4'-diphenylmethane diisocyanate/l,4-butanediol (PCL/MDI/ BDO) segmented polyurethanes of different compositions was synthesized by solution po- lymerization. The molecular weight of PCL diols used was in the range of 1600-7000. The crystallinity and morphology of these
The molecular mobility and hydration properties of model segmented polyurethanes from either poly(propylene glycol) (PPG) or poly(butylene adipate) (PBAD), both of molecular weight 2000 (soft segments), and three different diisocyanates (all-trans 4,4Πdicyclohexylmethane diisocyanate, 100% t,t HMDI;
Two series of thermoplastic polyurethane elastomers [poly(propylene glycol) (PPG) based PP samples and poly(oxytetramethylene)glycol (PTMG) based PT samples] were synthesized from isophorone diisocyanate (IPDI)/1,4-butanediol (BD)/ PPG and IPDI/BD/PTMG. The IPDI/BD based hard segments contents of po
Mechanical and dielectric properties of two series of segmented polyurethanes having soft segment concentration of 50 and 70% and a varying degree of crosslinking through the hard segment were studied. The degree of crosslinking in each series was varied by varying the butane diol/trimethylol propan