Theory of Viscoelasticity in Temporarily Crosslinked Polymers (V) : Relation between Molecular Weight Distribution and Viscoelastic Properties

概要

論文の詳細を見る
The rheology equation of amorphous polymers and concentrated polymer solutions with molecular weight distribution are obtained by using a temporarily crosslinked network model. The predicted spectrum is nearly of the box type but is out of shape in the range of long relation times. The minimum and the maximum relaxation times become longer and the height of plateau of the box lower as the distribution becomes broader. The relaxation spectrum gives the negative of integral curve of the molecular weight distribution. Then, a method of determining the molecular weight distribution by using the relaxation spectrum of concentrated polymer solution is proposed. The viscosity versus molecular weight relation predicted from the theory show that the viscosity is proportional to M_nM_ZM^<1.5>_<z+1>.
社団法人応用物理学会の論文
1965-11-15