Segmented block copolymers based on polyamide-4,6 and poly(propylene oxide)
✍ Scribed by P.F. van Hutten; E. Walch; A.H.M. Veeken; R.J. Gaymans
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 638 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0032-3861
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📜 SIMILAR VOLUMES
## Abstract **Summary:** Segmented block copolymers were synthesized in melt by conversion of carboxy‐terminated poly(propylene oxide) and amino‐terminated PA12 with a selectively reacting bifunctional coupling agent bearing one oxazoline and one oxazinone group. The reaction was performed either i
## Abstract A new route of synthesis of block copolymers was investigated. It involves the polymerization of a side‐chain liquid‐crystalline acrylate and poly(propylene glycol), modified by an esterification reaction with mercaptoacetic acid used as macrotransfer agent, in the presence of 2,2′‐azoi
## Abstract This article discusses the rate of water vapor transmission (WVT) through monolithic films of segmented block copolymers based on poly(ethylene oxide) (PEO) and monodisperse crystallisable tetra‐amide segments. The polyether phase consisted of hydrophilic PEO or mixtures of PEO and hydr