Local conformation of poly(1-adamantyl methacrylate) evaluated from intrinsic viscosity |
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Authors: | Akikazu Matsumoto Satoshi Tanaka Takayuki Otsu |
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Affiliation: | (1) Present address: Department of Applied Chemistry, Faculty of Engineering, Osaka City University, Sugimoto, Sumiyoshi-ku, 558 Osaka, Japan |
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Abstract: | The dilute-solution properties of poly(1-adamantyl methacrylate), which was prepared by radical polymerization in benzene at 60 °C and fractionated with benzene and ethanol as solvent and nonsolvent, respectively, were examined by the measurement of intrinsic viscosities in benzene, tetrahydrofuran, and cyclohexanone at 30°C. The Mark-Houwink-Sakurada equations were established for each solvent-polymer system. From the viscosity data in these three solvents by means of the Burchard-Stockmayer-Fixman plot, the characteristic ratio and steric factor of the chain were determined to be 16.7 and 2.9, respectively, which are higher than the values reported for other methacrylate polymers bearing cycloalkyl esters. |
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Keywords: | Poly(1-adamantyl methacrylate) intrinsic viscosity rigidity Mark-Houwink-Sakurada equation characteristic ratio steric factor |
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