# Water is not a Dynamic Polydisperse Branched Polymer

**Authors:** Teresa Head-Gordon, Francesco Paesani

arXiv: 1905.07007 · 2019-09-11

## TL;DR

This paper critiques a water model claiming it depicts water as a dynamic branched polymer, addressing factual errors and challenging its implications for the liquid-liquid critical point in supercooled water.

## Contribution

It provides a critical analysis of the RexPoN water model, correcting misconceptions and disputing its proposed explanation for the LLCP in supercooled water.

## Key findings

- Identifies factual errors in the RexPoN model interpretation
- Challenges the model's speculation on the LLCP
- Clarifies the correct understanding of water's behavior

## Abstract

The contributed paper by Naserifar and Goddard reports that their RexPoN water model under ambient conditions simulates liquid water as a dynamic polydisperse branched polymer, which they speculate explains the existence of the liquid-liquid critical point (LLCP) in the supercooled region. Our work addresses several serious factual errors and needless speculation in their paper about their interpretation of their model and its implication for the LLCP in supercooled water.

---
Source: https://tomesphere.com/paper/1905.07007