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Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids

[Image: see text] From drying blood to oil paint, the developing of a glassy phase from colloids is observed on a daily basis. Colloidal glass is solid soft matter that consists of two intertwined phases: a random packed particle network and a fluid solvent. By dispersing charged rod-like cellulose...

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Autores principales: Chu, Guang, Vasilyev, Gleb, Qu, Dan, Deng, Shengwei, Bai, Long, Rojas, Orlando J., Zussman, Eyal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7704027/
https://www.ncbi.nlm.nih.gov/pubmed/31927969
http://dx.doi.org/10.1021/acs.langmuir.9b03570
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author Chu, Guang
Vasilyev, Gleb
Qu, Dan
Deng, Shengwei
Bai, Long
Rojas, Orlando J.
Zussman, Eyal
author_facet Chu, Guang
Vasilyev, Gleb
Qu, Dan
Deng, Shengwei
Bai, Long
Rojas, Orlando J.
Zussman, Eyal
author_sort Chu, Guang
collection PubMed
description [Image: see text] From drying blood to oil paint, the developing of a glassy phase from colloids is observed on a daily basis. Colloidal glass is solid soft matter that consists of two intertwined phases: a random packed particle network and a fluid solvent. By dispersing charged rod-like cellulose nanoparticles into a water–ethylene glycol cosolvent, here we demonstrate a new kind of colloidal glass with a high liquid crystalline order, namely, two general superstructures with nematic and cholesteric packing states are preserved and jammed inside the glass matrix. During the glass formation process, structural arrest and phase transition occur simultaneously at high particle concentrations, yielding solid-like behavior as well as a frozen liquid crystal texture that is because of caging of the charged colloids through neighboring long-ranged repulsive interactions.
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spelling pubmed-77040272020-12-02 Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids Chu, Guang Vasilyev, Gleb Qu, Dan Deng, Shengwei Bai, Long Rojas, Orlando J. Zussman, Eyal Langmuir [Image: see text] From drying blood to oil paint, the developing of a glassy phase from colloids is observed on a daily basis. Colloidal glass is solid soft matter that consists of two intertwined phases: a random packed particle network and a fluid solvent. By dispersing charged rod-like cellulose nanoparticles into a water–ethylene glycol cosolvent, here we demonstrate a new kind of colloidal glass with a high liquid crystalline order, namely, two general superstructures with nematic and cholesteric packing states are preserved and jammed inside the glass matrix. During the glass formation process, structural arrest and phase transition occur simultaneously at high particle concentrations, yielding solid-like behavior as well as a frozen liquid crystal texture that is because of caging of the charged colloids through neighboring long-ranged repulsive interactions. American Chemical Society 2020-01-13 2020-02-04 /pmc/articles/PMC7704027/ /pubmed/31927969 http://dx.doi.org/10.1021/acs.langmuir.9b03570 Text en This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Chu, Guang
Vasilyev, Gleb
Qu, Dan
Deng, Shengwei
Bai, Long
Rojas, Orlando J.
Zussman, Eyal
Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title_full Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title_fullStr Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title_full_unstemmed Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title_short Structural Arrest and Phase Transition in Glassy Nanocellulose Colloids
title_sort structural arrest and phase transition in glassy nanocellulose colloids
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7704027/
https://www.ncbi.nlm.nih.gov/pubmed/31927969
http://dx.doi.org/10.1021/acs.langmuir.9b03570
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