Dissolution rates of poly(methyl methacrylate) in mixtures of nonsolvents
| Autor: | Ferdinand Rodriguez, J. Sullivan, P. D. Krasicky, S.-W. Chun, R. J. Groele |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Polymers and Plastics
General Chemistry Poly(methyl methacrylate) Surfaces Coatings and Films Solvent chemistry.chemical_compound chemistry visual_art Polymer chemistry Materials Chemistry visual_art.visual_art_medium Methanol Solvent effects Methyl methacrylate Acetonitrile Dissolution Nuclear chemistry Hexanol |
| Zdroj: | Journal of Applied Polymer Science. 42:3-8 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/app.1991.070420102 |
| Popis: | As predicted by thermodynamic studies of polymer conformation, high molecular weight poly(methyl methacrylate), PMMA, dissolves cleanly, and at a constant rate, in a 7:3 mixture of 1-butanol and acetonitrile although neither liquid is a solvent for PMMA by itself. Mixtures of other alcohols with acetonitrile also dissolve PMMA. When mixture with the same fraction of acetonitrile are compared, methanol dissolves PMMA almost twice as fast, ethanol and hexanol at about the same rate, and 2-propanol somewhat more slowly than the 1-butanol mixture with acetonitrile. The measurements of dissolution rate were made using a laser interferometer at 20 C. Keywords: Microlithography, Resists, Poly(methyl methacrylate). (aw) |
| Databáze: | OpenAIRE |
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