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arXiv · 2004.03278

Generalized models for bond percolation transitions of associative polymers

Jeong-Mo Choi·Anthony A. Hyman·Rohit V. Pappu
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Abstract

Associative polymers with sticker-and-spacer architectures undergo phase transitions that combine phase separation and bond percolation. Here, we generalize mean-field models for bond percolation and extract effective sticker interaction strengths from experimental data for specific proteins. We use graph-based Monte Carlo simulations to evaluate effects ignored by mean-field models. These include bond cooperativity defined as changes to strengths of new bonds (physical crosslinks) given the presence of a prior bond. We find that bond cooperativity fundamentally alters phase behavior, especially in sub-stoichiometric regimes for valencies of complementary stickers.

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BibTeXRIS

Jeong-Mo Choi, Anthony A. Hyman, Rohit V. Pappu. 2020-04-07. Generalized models for bond percolation transitions of associative polymers. https://doi.org/10.1103/physreve.102.042403

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