Kinetically controlled self-assembly of latex-microgel core-satellite particles

Mario Tagliazucchi, Fengwei Zou, Emily A Weiss

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Latex-microgel core-satellite particles were prepared by electrostatic assembly of negatively charged polystyrene latex and positively charged microgels of a poly(N-isopropylmethacrylamide) (pNIPMAM) and poly[2-methacryloyloxy)ethyl] trimethylammonium chloride (pMETAC) copolymer. The number of satellites per core, determined by scanning electron microscopy, varied from 3 to 10 depending on the sizes of the microgel and latex microparticles. The numbers of satellites per core for different size ratios were compared with the predictions for thermodynamically controlled (maximum packing) and kinetically controlled (random sequential adsorption) assembly, and it was shown that the assembly of latex and microgel proceeds through a random sequential adsorption mechanism. The charges of the microgels and latex particles were retained within the assemblies; therefore, the core-satellite particles have well-defined regions of positive and negative charge. These regions were used to direct the adsorption of gold and latex nanoparticles of opposite charge in order to create multicomponent colloids.

Original languageEnglish
Pages (from-to)2775-2780
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume5
Issue number16
DOIs
Publication statusPublished - Aug 21 2014

Fingerprint

Latex
latex
Latexes
Self assembly
Particles (particulate matter)
self assembly
Satellites
Adsorption
assembly
adsorption
Colloids
Gold
microparticles
Electrostatics
Copolymers
assemblies
colloids
Polystyrenes
polystyrene
copolymers

Keywords

  • colloids
  • gold nanoparticles
  • patchy particles
  • random sequential adsorption
  • scanning electron microscopy

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Kinetically controlled self-assembly of latex-microgel core-satellite particles. / Tagliazucchi, Mario; Zou, Fengwei; Weiss, Emily A.

In: Journal of Physical Chemistry Letters, Vol. 5, No. 16, 21.08.2014, p. 2775-2780.

Research output: Contribution to journalArticle

@article{88bc071402ac419cbeb60304a71de0fe,
title = "Kinetically controlled self-assembly of latex-microgel core-satellite particles",
abstract = "Latex-microgel core-satellite particles were prepared by electrostatic assembly of negatively charged polystyrene latex and positively charged microgels of a poly(N-isopropylmethacrylamide) (pNIPMAM) and poly[2-methacryloyloxy)ethyl] trimethylammonium chloride (pMETAC) copolymer. The number of satellites per core, determined by scanning electron microscopy, varied from 3 to 10 depending on the sizes of the microgel and latex microparticles. The numbers of satellites per core for different size ratios were compared with the predictions for thermodynamically controlled (maximum packing) and kinetically controlled (random sequential adsorption) assembly, and it was shown that the assembly of latex and microgel proceeds through a random sequential adsorption mechanism. The charges of the microgels and latex particles were retained within the assemblies; therefore, the core-satellite particles have well-defined regions of positive and negative charge. These regions were used to direct the adsorption of gold and latex nanoparticles of opposite charge in order to create multicomponent colloids.",
keywords = "colloids, gold nanoparticles, patchy particles, random sequential adsorption, scanning electron microscopy",
author = "Mario Tagliazucchi and Fengwei Zou and Weiss, {Emily A}",
year = "2014",
month = "8",
day = "21",
doi = "10.1021/jz5013609",
language = "English",
volume = "5",
pages = "2775--2780",
journal = "Journal of Physical Chemistry Letters",
issn = "1948-7185",
publisher = "American Chemical Society",
number = "16",

}

TY - JOUR

T1 - Kinetically controlled self-assembly of latex-microgel core-satellite particles

AU - Tagliazucchi, Mario

AU - Zou, Fengwei

AU - Weiss, Emily A

PY - 2014/8/21

Y1 - 2014/8/21

N2 - Latex-microgel core-satellite particles were prepared by electrostatic assembly of negatively charged polystyrene latex and positively charged microgels of a poly(N-isopropylmethacrylamide) (pNIPMAM) and poly[2-methacryloyloxy)ethyl] trimethylammonium chloride (pMETAC) copolymer. The number of satellites per core, determined by scanning electron microscopy, varied from 3 to 10 depending on the sizes of the microgel and latex microparticles. The numbers of satellites per core for different size ratios were compared with the predictions for thermodynamically controlled (maximum packing) and kinetically controlled (random sequential adsorption) assembly, and it was shown that the assembly of latex and microgel proceeds through a random sequential adsorption mechanism. The charges of the microgels and latex particles were retained within the assemblies; therefore, the core-satellite particles have well-defined regions of positive and negative charge. These regions were used to direct the adsorption of gold and latex nanoparticles of opposite charge in order to create multicomponent colloids.

AB - Latex-microgel core-satellite particles were prepared by electrostatic assembly of negatively charged polystyrene latex and positively charged microgels of a poly(N-isopropylmethacrylamide) (pNIPMAM) and poly[2-methacryloyloxy)ethyl] trimethylammonium chloride (pMETAC) copolymer. The number of satellites per core, determined by scanning electron microscopy, varied from 3 to 10 depending on the sizes of the microgel and latex microparticles. The numbers of satellites per core for different size ratios were compared with the predictions for thermodynamically controlled (maximum packing) and kinetically controlled (random sequential adsorption) assembly, and it was shown that the assembly of latex and microgel proceeds through a random sequential adsorption mechanism. The charges of the microgels and latex particles were retained within the assemblies; therefore, the core-satellite particles have well-defined regions of positive and negative charge. These regions were used to direct the adsorption of gold and latex nanoparticles of opposite charge in order to create multicomponent colloids.

KW - colloids

KW - gold nanoparticles

KW - patchy particles

KW - random sequential adsorption

KW - scanning electron microscopy

UR - http://www.scopus.com/inward/record.url?scp=84906498277&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84906498277&partnerID=8YFLogxK

U2 - 10.1021/jz5013609

DO - 10.1021/jz5013609

M3 - Article

VL - 5

SP - 2775

EP - 2780

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

SN - 1948-7185

IS - 16

ER -