𝔖 Bobbio Scriptorium
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Estimation of molecular weight averages from intrinsic viscosity

✍ Scribed by K. K. Chee

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
271 KB
Volume
30
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The weight‐average molecular weight is estimated by an extrapolation technique based on a linear relation between the viscosity‐average molecular weight M~v~ and a Mark–Houwink–Sakurada constant. This method may also be used to assess the unperturbed dimensions of polymers. If the M~v~ data are known with high accuracy, then the straight line may be stretched to reach the number‐average molecular weight confidently. The slope of the linear plot is associated with the molecular weight distribution and as such can be utilized to compute the polydispersity index.

📜 SIMILAR VOLUMES

Relation between intrinsic viscosity and
Relation between intrinsic viscosity and molecular weight
✍ H. M. Quackenbos 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 331 KB 👁 1 views

## Abstract The connection between intrinsic viscosity and number‐average and weight‐average molecular weight has been revealed by calculations from distribution curves. Log‐normal distributions, and moderate variations thereon, were chosen as typical for polystyrene and other thermoplastics. Intri