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Responsive hydrogel colloids : Structure, interactions, phase behavior, and equilibrium and nonequilibrium transitions of microgel dispersions

Brijitta, J. LU and Schurtenberger, P. LU (2019) In Current Opinion in Colloid and Interface Science 40. p.87-103
Abstract

Soft and responsive colloids based on polymer hydrogels have moved into the focus of the colloid community. This review gives a brief overview of the recent literature on the structure and phase behavior of neutral and ionic poly(N-isopropylacrylamide) microgel dispersions from dilute to over-packed conditions, focusing in particular on the ability of these particles to adapt their size and shape in response to external stimuli. The review is hierarchical; it first covers the aspects of an individual microgel particle viz., the internal structure of inhomogeneous and homogeneously cross-linked particles, followed by studies of ensembles of particles covering in particular structural ordering, phase behavior, and liquid–solid and... (More)

Soft and responsive colloids based on polymer hydrogels have moved into the focus of the colloid community. This review gives a brief overview of the recent literature on the structure and phase behavior of neutral and ionic poly(N-isopropylacrylamide) microgel dispersions from dilute to over-packed conditions, focusing in particular on the ability of these particles to adapt their size and shape in response to external stimuli. The review is hierarchical; it first covers the aspects of an individual microgel particle viz., the internal structure of inhomogeneous and homogeneously cross-linked particles, followed by studies of ensembles of particles covering in particular structural ordering, phase behavior, and liquid–solid and solid–solid transitions. Insights on the ability of the microgel particles to deform, compress, and interpenetrate beyond the close-packed volume fractions are discussed. Building complex architectures using microgel particles for fundamental studies as well as future applications is reviewed towards the end of the article.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Colloidal phase transitions, Ionic microgels, Microgel structure, Particle interpenetration and compression, Self-assembly, Soft colloids, Thermoresponsive microgels
in
Current Opinion in Colloid and Interface Science
volume
40
pages
17 pages
publisher
Elsevier
external identifiers
  • scopus:85062819108
ISSN
1359-0294
DOI
10.1016/j.cocis.2019.02.005
language
English
LU publication?
yes
id
7acda9ee-fddb-4717-b6cb-b3620b3a0f0b
date added to LUP
2019-03-21 12:42:41
date last changed
2019-08-14 04:34:10
@article{7acda9ee-fddb-4717-b6cb-b3620b3a0f0b,
  abstract     = {<p>Soft and responsive colloids based on polymer hydrogels have moved into the focus of the colloid community. This review gives a brief overview of the recent literature on the structure and phase behavior of neutral and ionic poly(N-isopropylacrylamide) microgel dispersions from dilute to over-packed conditions, focusing in particular on the ability of these particles to adapt their size and shape in response to external stimuli. The review is hierarchical; it first covers the aspects of an individual microgel particle viz., the internal structure of inhomogeneous and homogeneously cross-linked particles, followed by studies of ensembles of particles covering in particular structural ordering, phase behavior, and liquid–solid and solid–solid transitions. Insights on the ability of the microgel particles to deform, compress, and interpenetrate beyond the close-packed volume fractions are discussed. Building complex architectures using microgel particles for fundamental studies as well as future applications is reviewed towards the end of the article.</p>},
  author       = {Brijitta, J. and Schurtenberger, P.},
  issn         = {1359-0294},
  keyword      = {Colloidal phase transitions,Ionic microgels,Microgel structure,Particle interpenetration and compression,Self-assembly,Soft colloids,Thermoresponsive microgels},
  language     = {eng},
  pages        = {87--103},
  publisher    = {Elsevier},
  series       = {Current Opinion in Colloid and Interface Science},
  title        = {Responsive hydrogel colloids : Structure, interactions, phase behavior, and equilibrium and nonequilibrium transitions of microgel dispersions},
  url          = {http://dx.doi.org/10.1016/j.cocis.2019.02.005},
  volume       = {40},
  year         = {2019},
}