Coil Dimensions as a Function of Concentration

TL;DR

This paper revises the estimated coil dimensions of polymers based on experimental data and theoretical analysis, showing that excluded volume effects diminish at medium concentrations, aligning theory with revised experimental values.

Contribution

It provides a revised estimate of coil dimensions in the bulk state and demonstrates the agreement between theory and experimental data after correction.

Findings

Revised coil dimension from 82 Å to 93 Å in the bulk state.

Excluded volume effects vanish at medium concentration.

Strong agreement between theory and experimental data after revision.

Abstract

The preceding theory of excluded volume effects is applied to the Daud and coworkers' observations. Based on various researchers' experimental data, it is suggested that the Daud and coworkers' value in the bulk state may be revised from 82 \AA to 93\AA. Then agreement between the theory and the revised data is excellent, giving a support to the preceding result that the excluded volume effects should vanish at medium concentration.