Viscosity-Molecular Weight Relation for High Molecular Weight Poly-(dimethylsiloxane)

  • FURUYA Susumu
    Nippon Telegraph and Telephone Public Corporation, Electrical Communication Laboratory

Bibliographic Information

Other Title
  • 高粘度ポリジメチルシロキサンの粘度と分子量の関係
  • コウネンド ポリジメチルシロキサン ノ ネンド ト ブンシリョウ ノ カンケイ

Search this article

Description

Viscosities of five poly-(dimethylsiloxane) samples of molecular weights ranging from 6.1×104 to 23.5×104 were determined by using capillary pipette, falling sphere and cone-and-plate viscometers. The molecular weights were estimated from intrinsic viscosities in toluene at 25°C., using Kolorelov et al.'s equation, instead of Barry's equation employed by previous investigators.<br>The melt viscosities measured at low shear rates were related to molecular weight M by the eqation, logη40°C=3.5logM-14.88.

Journal

Details 詳細情報について

Report a problem

Back to top