Journal ArticleDOI
Thermodynamics of High Polymer Solutions
TLDR
In this paper, a statistical treatment of high polymer solutions has been carried out on the basis of an idealized model, originally proposed by Meyer, which is analogous to the one ordinarily assumed in the derivation of the ''ideal'' solution laws for molecules of equal size.Abstract:
A statistical mechanical treatment of high polymer solutions has been carried out on the basis of an idealized model, originally proposed by Meyer, which is analogous to the one ordinarily assumed in the derivation of the ``ideal'' solution laws for molecules of equal size. There is obtained for the entropy of mixing of n solvent and N linear polymer molecules (originally disoriented), ΔS=−k[(n/β) ln v1+N ln v2] where v1 and v2 are volume fractions and β is the number of solvent molecules replaceable by a freely orienting segment of the polymer chain. This expression is similar in form to the classical expression for equal‐sized molecules, mole fractions having been replaced by volume fractions. When the disparity between the sizes of the two components is great, this expression gives entropies differing widely from the classical values, which accounts for the large deviations of high polymer solutions from ``ideal'' behavior. The entropy of disorientation of a perfectly arranged linear polymer is found t...read more
Citations
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Journal ArticleDOI
Biomolecular condensates: organizers of cellular biochemistry
TL;DR: This work has shown that liquid–liquid phase separation driven by multivalent macromolecular interactions is an important organizing principle for biomolecular condensates and has proposed a physical framework for this organizing principle.
Journal ArticleDOI
Statistical mechanics of cross-linked polymer networks ii. swelling
Paul J. Flory,John Rehner +1 more
TL;DR: In this paper, the interaction of solvents with cross-linked network structures, such as occur in vulcanized rubber, is subjected to a statistical mechanical treatment based on the model and procedure presented in the preceding paper.
Journal ArticleDOI
Phase Separation by Low Complexity Domains Promotes Stress Granule Assembly and Drives Pathological Fibrillization
Amandine Molliex,Jamshid Temirov,Jihun Lee,Maura Coughlin,Anderson P. Kanagaraj,Hong Joo Kim,Tanja Mittag,J. Paul Taylor +7 more
TL;DR: It is demonstrated that the disease-related RBP hnRNPA1 undergoes liquid-liquid phase separation (LLPS) into protein-rich droplets mediated by a low complexity sequence domain (LCD), and suggested that LCD-mediated LLPS contributes to the assembly of stress granules and their liquid properties.
Journal ArticleDOI
Phase transitions in the assembly of multivalent signalling proteins
Pilong Li,Sudeep Banjade,Hui-Chun Cheng,Soyeon Kim,Baoyu Chen,Liang Guo,Marc C. Llaguno,Javoris Hollingsworth,David S. King,Salman F. Banani,Paul S. Russo,Qiu-Xing Jiang,B. Tracy Nixon,Michael K. Rosen +13 more
TL;DR: Interactions between diverse synthetic, multivalent macromolecules (including multi-domain proteins and RNA) produce sharp liquid–liquid-demixing phase separations, generating micrometre-sized liquid droplets in aqueous solution.
Journal ArticleDOI
Considerations and Challenges in Studying Liquid-Liquid Phase Separation and Biomolecular Condensates.
TL;DR: In this article, the authors propose guidelines for rigorous experimental characterization of liquid-liquid phase separation processes in vitro and in cells, discuss the caveats of common experimental approaches, and point out experimental and theoretical gaps in the field.
References
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Journal ArticleDOI
Viscosity, Plasticity, and Diffusion as Examples of Absolute Reaction Rates
TL;DR: The theory of reaction rates yields an equation for absolute viscosity applicable to cases involving activation energies where the usual theory of energy transfer does not apply as mentioned in this paper, which provides an explanation of the law of rectilinear diameters of Cailletet and Mathias.
Book
The solubility of non-electrolytes
TL;DR: Hildebrand's book is an exception as mentioned in this paper, since the reviewer has taken the opportunity to renew his acquaintance with the earlier as well as the later text, and has found this to be a most interesting experience, since the book is full of matter which is not dealt with adequately in the ordinary text-books of physical chemistry.