Small crowder interactions can drive hydrophobic polymer collapse as well as unfolding

2020 ◽  
Vol 22 (32) ◽  
pp. 18091-18101
Author(s):  
Divya Nayar
Keyword(s):  
Polymer Collapse ◽  
Hydrophobic Polymer

The strength of polymer–crowder attractions determine polymer collapse or unfolding. Collapse may occur via preferential depletion or adsorption of crowders.

Attractions, Water Structure, and Thermodynamics of Hydrophobic Polymer Collapse

2008 ◽  
Vol 112 (42) ◽  
pp. 13193-13196 ◽  
Author(s):  
Gaurav Goel ◽  
Manoj V. Athawale ◽  
Shekhar Garde ◽  
Thomas M. Truskett
Keyword(s):  
Water Structure ◽  
Polymer Collapse ◽  
Hydrophobic Polymer

scholarly journals Drying-induced hydrophobic polymer collapse

2002 ◽  
Vol 99 (10) ◽  
pp. 6539-6543 ◽  
Author(s):  
P. R. ten Wolde ◽  
D. Chandler
Keyword(s):  
Polymer Collapse ◽  
Hydrophobic Polymer

Molecular origin of urea driven hydrophobic polymer collapse and unfolding depending on side chain chemistry

2017 ◽  
Vol 19 (28) ◽  
pp. 18156-18161 ◽  
Author(s):  
Divya Nayar ◽  
Angelina Folberth ◽  
Nico F. A. van der Vegt
Keyword(s):  
Molecular Simulations ◽  
Side Chain ◽  
Molecular Surfaces ◽  
Polymer Collapse ◽  
Hydrophobic Polymer ◽  
Molecular Origin

Urea ambivalence: molecular simulations show that collapse and unfolding of aqueous polymers occur in response to urea screening of nonpolar molecular surfaces.

Self-avoiding-self-attracting model of polymer collapse and adsorption

1991 ◽  
Vol 1 (3) ◽  
pp. 397-419 ◽  
Author(s):  
S. Cattarinussi ◽  
G. Jug
Keyword(s):  
Polymer Collapse

scholarly journals An interplay of excluded-volume and polymer–(co)solvent attractive interactions regulates polymer collapse in mixed solvents

2021 ◽  
Vol 154 (13) ◽  
pp. 134903
Author(s):  
Swaminath Bharadwaj ◽  
Divya Nayar ◽  
Cahit Dalgicdir ◽  
Nico F. A. van der Vegt
Keyword(s):  
Mixed Solvents ◽  
Excluded Volume ◽  
Polymer Collapse

Synthesis of fuel bioadditive by esterification of glycerol with acetic acid over hydrophobic polymer-based solid acid

Fuel ◽  
2021 ◽  
Vol 302 ◽  
pp. 121175
Author(s):  
Ronglin Mou ◽  
Xinji Wang ◽  
Ziqing Wang ◽  
Daoyou Zhang ◽  
Zhili Yin ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Solid Acid ◽  
Hydrophobic Polymer

scholarly journals Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Aristotelis Kamtsikakis ◽  
Johanna Baales ◽  
Viktoria V. Zeisler-Diehl ◽  
Dimitri Vanhecke ◽  
Justin O. Zoppe ◽  
...  
Keyword(s):  
Water Transport ◽  
Vascular Plants ◽  
Protective Layer ◽  
Systematic Investigation ◽  
Nanocomposite Membranes ◽  
Hydrophobic Polymer ◽  
Polyester Matrix ◽  
Transpirational Water Loss ◽  
Epidermal Cell Wall ◽  
Cuticular Layer

AbstractMost of the aerial organs of vascular plants are covered by a protective layer known as the cuticle, the main purpose of which is to limit transpirational water loss. Cuticles consist of an amphiphilic polyester matrix, polar polysaccharides that extend from the underlying epidermal cell wall and become less prominent towards the exterior, and hydrophobic waxes that dominate the surface. Here we report that the polarity gradient caused by this architecture renders the transport of water through astomatous olive and ivy leaf cuticles directional and that the permeation is regulated by the hydration level of the cutin-rich outer cuticular layer. We further report artificial nanocomposite membranes that are inspired by the cuticles’ compositionally graded architecture and consist of hydrophilic cellulose nanocrystals and a hydrophobic polymer. The structure and composition of these cuticle-inspired membranes can easily be varied and this enables a systematic investigation of the water transport mechanism.

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