Related Experiment Video
Updated: May 11, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
Comment on "Equilibrium conformation of polymer chains with noncircular cross section"
Alexander Gerhardt-Bourke1, Ngamta Thamwattana
1School of Mathematics and Applied Statistics, University of Wollongong, Wollongong, New South Wales 2522, Australia.
This comment corrects erroneous Euler-Lagrange equations used in general equilibrium analysis. New numerical results are presented using the accurate equations for improved scientific understanding.
Area of Science:
- Physics
- Applied Mathematics
Background:
- The Euler-Lagrange equations are fundamental in physics and applied mathematics.
- Zhao et al. (2006) utilized specific formulations of these equations, referred to as general equilibrium equations, in their work.
Discussion:
- This comment identifies critical errors in the Euler-Lagrange equations as presented by Zhao et al.
- The derivation of equations from the incorrect Euler-Lagrange formulation is also flawed.
Key Insights:
- Correct Euler-Lagrange equations for general equilibrium are provided.
- New numerical results validate the corrected equations.
Outlook:
- Accurate equations will enhance future research in general equilibrium systems.
- This work ensures the integrity of theoretical frameworks in related scientific fields.
Related Concept Videos
Anionic Chain-Growth Polymerization: Mechanism
Radical Chain-Growth Polymerization: Overview
Polymer Classification: Architecture
Ziegler–Natta Chain-Growth Polymerization: Overview
Conformations of Cyclohexane
The chair form is the most stable and derives its name from its resemblance to the “easy chair.” In the chair conformation, two carbon atoms are arranged out-of-plane — one above and one below, minimizing the torsional strain. In the chair form, the bond angle is very close to the ideal tetrahedral value,...
Anionic Chain-Growth Polymerization: Overview

