ISSN:
0887-6266
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Green's functions formalism and transfer matrix method have been used to predict the spectra of all-trans poly(vinylidene fluoride) and the expected changes for poly(vinylidene fluoride/trifluoroethylene) copolymers with the same chain conformation. We find that the use of a simple cluster-lattice calculation, where the impurity cluster is a trifluoroethylene (TrFE) unit immersed in a poly(vinylidene fluoride) [P(VDF)] regular chain, can explain the main features observed by infrared and Raman spectroscopy in the frequency range 800 to 1450 cm-1. The bands associated to vibration modes of regular VDF sequences, like the 880, 1070, 1280, and 1430 cm-1 ones, are predicted to decrease or even to disappear with increasing TrFE content. The appearance of new peaks at 970, 1300, 1330, and 1410 cm-1 is also discussed.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/polb.1991.090290705
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