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Studies on the reactive polyvinylidene fluoride-polyamide 6 interfaces: rheological properties and interfacial width
- Source :
-
Polymer . Mar2005, Vol. 46 Issue 7, p2365-2371. 7p. - Publication Year :
- 2005
-
Abstract
- Abstract: We firstly synthesized and characterized a series of functional carboxylated polyvinylidene fluoride (PVDF-g-AAc). Then the temporal change of the complex viscosity (η*) of the two plates consisting of the graft polymer PVDF-g-AAc and polyamide 6 (PA6) was measured by a rotational rheometer. There were two distinct stages for the change of the complex viscosity (η*) with time: (i) stage I, where η* increased rapidly at short times, a reaction-controlled kinetics was induced; (ii) stage II, where η* increased slowly at a long time, however, a diffusion-controlled kinetics was obtained. Despite whether the kinetics are reaction-controlled or diffusion-controlled, the reaction could be predicted by pseudo-first-order kinetics. Meanwhile, the reaction temperature had an effect on the interfacial width and roughness. The value of the interfacial root-mean-square (rms) roughness obtained from AFM was consistent with that of the interfacial width from ellipsometer at different temperatures. [Copyright &y& Elsevier]
- Subjects :
- *GRAFT copolymers
*POLYMERS
*POLYAMIDES
*HYDRODYNAMICS
*VISCOSITY
*MACROMOLECULES
Subjects
Details
- Language :
- English
- ISSN :
- 00323861
- Volume :
- 46
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Polymer
- Publication Type :
- Academic Journal
- Accession number :
- 17437082
- Full Text :
- https://doi.org/10.1016/j.polymer.2005.01.048