Studies on Polymerizaton and Depolymerization of ε-Caprolactam Polymer. VIII. The Solution Viscosity of Poly-ε-capramide of Super-high Degree of Polymerization

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概要

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• The solution viscosity of poly-ε-capramide of a super-high degree of polymerization in 98% sulfuric acid has been investigated. A linear relation between log (η<SUB>sp</SUB>/<I>c</I>) and <I>c</I> (g./ 100 cc.) is found for the alkali-catalyzed polymers of [η]>2.5, as expressed by the following equation.<BR>log(η_sp/c)=0.05c+(0.33c+1)log[η] <BR>The relationship between \bar<I>P<SUB>n</SUB></I> and [η] is expressed by the following equation.<BR>\barP_n=89[η] <BR>The alkali-catalyzed polymer of a super-high degree of polymerization degrades slowly at room temperature in solid phase.

• 社団法人 日本化学会の論文

著者

• Ogata Naoya

  Research Department Toyo Rayon Co. Ltd.

• Ogata N.

  Research Department Toyo Rayon Co. Ltd.

関連論文

• Studies on Polymerizaton and Depolymerization of ε-Caprolactam Polymer. VIII. The Solution Viscosity of Poly-ε-capramide of Super-high Degree of Polymerization

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