The chain extension reaction in poly(butylene terephthalate) (PBT) melt was studied in detail. A high-reactivity diepoxy, diglycidyl tetrahydrophthalate, was used as a chain extender that can react with the hydroxyl and carboxyl end groups of PBT at a very fast reaction rate and a relatively high te
Chain Extension of Maleinated Poly(propylene) by Reactive Extrusion
✍ Scribed by Marc Köster; Götz P. Hellmann
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 102 KB
- Volume
- 286
- Category
- Article
- ISSN
- 1438-7492
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📜 SIMILAR VOLUMES
Molecular weight increase via chain extension reactions of poly(ethylene terephthalate) with commercially available diepoxides was studied in a custom-made laboratory scale reactor and a Brabender rheomixer under reactive blending conditions. The products were characterized by carboxylic end group a
## SYNOPSIS Blends of poly(L-lactide) (PLLA) and poly(e-caprolactone) (PCL) were prepared in a corotating twin screw miniextruder (40 rpm, 200"). It was attempted to prepare multiblock copolymers by allowing a controlled number of transesterification reactions. Various catalysts (n-Bu,SnOMe, Sn(Oc