Effects of solvent structure in polyvinyl chloride-solvent systems

Autor:	Robert L. Adelman, Isabel M. Klein
Rok vydání:	1958
Předmět:	chemistry.chemical_classification Solvent Hildebrand solubility parameter chemistry.chemical_compound Polyvinyl chloride chemistry Organic chemistry Electron donor Polymer Solvent effects Solubility Dissolution
Zdroj:	Journal of Polymer Science. 31:77-94
ISSN:	1542-6238 0022-3832
DOI:	10.1002/pol.1958.1203112209
Popis:	A study was made of the solubility of a high molecular weight polyvinyl chloride in a wide variety of solvents at room temperature. Many powerful solvents and solvent combinations for the polymer were demonstrated. A number of combination of N, N-disubstituted amides with other classes of solvents, including the cyclic ethers, aliphatic ketones, alkyl-substituted pyridines, and aromatic hydrocarbons, were found to have synergistic solvent action. The solvent power of many pure and mixed solvents appear to be qualitatively predictable from molecular structure in terms of: (a) the electron donor capacity of the solvent, (b) steric hindrance to approach of the electron donor center of the solvent to the polymer, and (c) effective solvent bulk for keeping the polymer chains well separated. The solubility parameter concept does not appear to be applicable for predicting solvent power in the systems studied.
Databáze:	OpenAIRE
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