Temperature dependence of limiting viscosity number and radius of gyration of cellulose diacetate in acetone
作者： H. Suzuki , Y. Miyazaki , K. Kamide
DOI: 10.1016/0014-3057(80)90037-3
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摘要: Abstract Acetone solutions of a cellulose diacetate fraction were studied by viscosity and light scattering methods over the range 12.6–50.3 2 . The temperature dependences limiting number [η], mean-square radius gyration 〈s 〉, second virial coefficient A determined. unperturbed 〉 o expansion factor α, estimated using theoretical relations to interpenetration function. It was found that dln /d T is −6.4 × 10 −3 deg −1 , while close unity whole studied. results are interpreted show draining effect not negligible Flory parameter Φ slightly increases with increasing temperature. finally concluded value −6.9 for [ η ]/d can be ascribable rapid decrease in
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