Viscoelastic properties of poly(propylene glycols)
β Scribed by A.John Barlow; Aynur Erginsav
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 461 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
A series of poly(propylene-glycol-diacrylates) (PPGDA) having molecular weights (MW) in the range 300-3,000 and an acrylic functionality near to two were synthesized by acrylation of the corresponding hydroxy-terminated oligomers with acrylic acid in the presence of p-toluensulphonic acid as a catal
A comparison is made of the chain conformational distribution of hydroxyterminated poly(propylene glycol) (PPG) and poly(ethylene glycol) (PEG) with their methoxy-terminated derivatives. The significant end-group dependence on the glass transition temperature in PPG was observed by differential scan
## Abstract Two kinds of polylactide (PLA) which was named PLA1 with Lβlactide content of 98% and PLA2 with Lβlactide content of 88% were blended with poly(ethylene glycolβ__co__βpropylene glycol) (PEPG) in a batchwise mixer and pressed into films. The effect of annealing on the thermal properties,