Dilation of poly[1-(trimethylsilyl)-1-propyne] during sorption of n-nonane
| Autor: | H. B. Hopfenberg, L. C. Witchey‐Lakshmanan, R. T. Chern |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Trimethylsilyl Analytical chemistry Sorption Polymer Condensed Matter Physics Propyne complex mixtures Thermal expansion chemistry.chemical_compound chemistry Desorption Polymer chemistry Materials Chemistry Dilation (morphology) Physical and Theoretical Chemistry Nonane |
| Zdroj: | Journal of Polymer Science Part B: Polymer Physics. 31:1545-1553 |
| ISSN: | 1099-0488 0887-6266 |
| DOI: | 10.1002/polb.1993.090311111 |
| Popis: | The linear expansion and contraction in the principal planar directions of poly [1-(trimethylsilyl)-1-propyne] film were measured concurrently with the sorption of n-nonane at 35°C. After the first sorption cycle, in which the polymer exhibited markedly nonisotropic volumetric dilation, the polymer expanded and contracted reproducibly during subsequent multiple sorption and desorption cycles. These reversible dilation isotherms were reproducible from sample to sample. The fractional change in length was identical in arbitrarily selected, orthogonal directions in the plane of the film, suggesting that the expansion and dilation of the sample are isotropic |
| Databáze: | OpenAIRE |
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