THERMOREVERSIBLE GELATION OF ISOTACTIC POLY(METHYL METHACRYLATE) IN BUTYL ACETATE - A DIFFERENTIAL SCANNING CALORIMETRY STUDY

Authors
SPEVACEK J SAIANI A GUENET JM
Citation
J. Spevacek et al., THERMOREVERSIBLE GELATION OF ISOTACTIC POLY(METHYL METHACRYLATE) IN BUTYL ACETATE - A DIFFERENTIAL SCANNING CALORIMETRY STUDY, Macromolecular rapid communications, 17(6), 1996, pp. 389-395
Citations number
14
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
17
Issue
6
Year of publication
1996
Pages
389 - 395
Database
ISI
SICI code
1022-1336(1996)17:6<389:TGOIPM>2.0.ZU;2-F
Abstract
The thermal behaviour of thermoreversible gels prepared well below roo m temperature from isotactic poly(methyl methacrylate) (i-PMMA) in but yl acetate (BAG) was investigated by means of differential scanning ca lorimetry. Gel-formation and gel-melting enthalpies together with melt ing enthalpy of the solvent were determined as functions of polymer co ncentration. The results are consistent with the existence of a polyme r/solvent complex with a stoichiometry of 1,5-2 BAC molecules per i-PM MA monomeric unit.