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Preparation of high viscosity thermoplastic phenol formaldehyde polymers for application in reactive extrusion |
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| Authors: | Kjetil Larsen Børve Hans Kristian Kotlar |
| Affiliation: | a The Norwegian Institute of Science and Technology, Department of Machine Design and Materials Technology, N-7034 Trondheim, Norway b Statoil Research Centre, N-700S Trondheim, Norway |
| Abstract: | This work deals with the synthesis of high molecular weight, thermoplastic phenol formaldehyde (PF) resins for the application in the synthesis of polypropylene–PF compatibilizers by reactive extrusion. Phenol formaldehyde of high molecular weight is required in reactive extrusion with most polypropylene grades to meet the viscosity ratio (λ) requirement for best mixing. Special lab-grades of PF were therefore developed. The polymers synthesized were highly linear and in the Mw range of 10–30 000 g mole?1. |
| Keywords: | phenolic resins thermoplastic high molecular weight |
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