Synthesis, dilute solution properties, and chain flexibility of poly(difluorobenzyl methacrylates)

Gargallo, L.; Miranda, R.; Radic D.

Abstract

The synthesis and dilute solution behavior of poly(2,5-difluorobenzyl methacrylate) (P2,5-DFBM) and poly(2,6-difluorobenzyl methacrylate) (P2,6-DFBM) are described. The polymers were characterized by viscosity and classical lightscattering and size exclusion chromatography (SEC) measurements. The Kuhn-Mark-Houwink-Sakurada (KMHS) relationships were established. Unperturbed dimensions (1/2), the rigidity factor sigma, the characteristic ratio C-infinity and the thermodynamic parameters were determined using the Stockmayer-Fixman treatment. The double substitution in the 2,5 and 2,6 positions by fluorine atoms increases the conformational parameters. The presence of substituents such as -CH3 or fluorine atoms close to the main chain (2,6 position) affects the internal rotation potential in the same way.

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Título según WOS: Synthesis, dilute solution properties, and chain flexibility of poly(difluorobenzyl methacrylates)
Título según SCOPUS: Synthesis, dilute solution properties, and chain flexibility of poly(difluorobenzyl methacrylates)
Título de la Revista: JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
Volumen: B39
Número: 3
Editorial: TAYLOR & FRANCIS INC
Fecha de publicación: 2000
Página de inicio: 415
Página final: 423
Idioma: English
URL: http://www.tandfonline.com/doi/abs/10.1081/MB-100100396
DOI:

10.1081/MB-100100396

Notas: ISI, SCOPUS