Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Segregation of mass at the periphery of N -isopropylacrylamide-co-acrylic-acid microgels at high temperatures

Abstract

Here, we investigate poly(N-isopropylacrylamide) (pNIPAM) microgels randomly copolymerized with large mol % of protonated acrylic acid (AAc), finding that above the lower critical solution temperature the presence of the acid strongly disrupts pNIPAM's collapse, leading to unexpected new behavior at high temperatures. We see a dramatic increase in the ratio between the radius of gyration and the hydrodynamic radius above the theoretical value for homogeneous spheres, and a corresponding increase of the network length scale, which we attribute to the presence of a heterogeneous polymer distribution that forms due to frustration of pNIPAM's coil-to-globule transition by the AAc. Finally, we analyze this phenomenon using a Debye-Bueche-like scattering contribution as opposed to the Lorentzian term often used, interpreting the results in terms of mass segregation at the particle periphery.

Authors:
 [1];  [2];  [1];  [3];  [4];  [1];  [1]
+ Show Author Affiliations
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Shinsegae International, Seoul (South Korea)
  4. Hanyang Univ., Gyeonggi (South Korea)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1265870
Alternate Identifier(s):
OSTI ID: 1222430
Grant/Contract Number:  
AC05-00OR22725; 50603-DNI7
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 3; Journal ID: ISSN 1539-3755
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Hyatt, John S., Do, Changwoo, Hu, Xiaobo, Choi, Hong Sung, Kim, Jin Woong, Lyon, L. Andrew, and Fernandez-Nieves, Alberto. Segregation of mass at the periphery of N -isopropylacrylamide-co-acrylic-acid microgels at high temperatures. United States: N. p., 2015. Web. doi:10.1103/PhysRevE.92.030302.
Copy to clipboard
Hyatt, John S., Do, Changwoo, Hu, Xiaobo, Choi, Hong Sung, Kim, Jin Woong, Lyon, L. Andrew, & Fernandez-Nieves, Alberto. Segregation of mass at the periphery of N -isopropylacrylamide-co-acrylic-acid microgels at high temperatures. United States. https://doi.org/10.1103/PhysRevE.92.030302
Copy to clipboard
Hyatt, John S., Do, Changwoo, Hu, Xiaobo, Choi, Hong Sung, Kim, Jin Woong, Lyon, L. Andrew, and Fernandez-Nieves, Alberto. Tue . "Segregation of mass at the periphery of N -isopropylacrylamide-co-acrylic-acid microgels at high temperatures". United States. https://doi.org/10.1103/PhysRevE.92.030302. https://www.osti.gov/servlets/purl/1265870.
Copy to clipboard
@article{osti_1265870,
title = {Segregation of mass at the periphery of N -isopropylacrylamide-co-acrylic-acid microgels at high temperatures},
author = {Hyatt, John S. and Do, Changwoo and Hu, Xiaobo and Choi, Hong Sung and Kim, Jin Woong and Lyon, L. Andrew and Fernandez-Nieves, Alberto},
abstractNote = {Here, we investigate poly(N-isopropylacrylamide) (pNIPAM) microgels randomly copolymerized with large mol % of protonated acrylic acid (AAc), finding that above the lower critical solution temperature the presence of the acid strongly disrupts pNIPAM's collapse, leading to unexpected new behavior at high temperatures. We see a dramatic increase in the ratio between the radius of gyration and the hydrodynamic radius above the theoretical value for homogeneous spheres, and a corresponding increase of the network length scale, which we attribute to the presence of a heterogeneous polymer distribution that forms due to frustration of pNIPAM's coil-to-globule transition by the AAc. Finally, we analyze this phenomenon using a Debye-Bueche-like scattering contribution as opposed to the Lorentzian term often used, interpreting the results in terms of mass segregation at the particle periphery.},
doi = {10.1103/PhysRevE.92.030302},
journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics},
number = 3,
volume = 92,
place = {United States},
year = {Tue Sep 29 00:00:00 EDT 2015},
month = {Tue Sep 29 00:00:00 EDT 2015}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevE.92.030302
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

The kinetics of poly(N-isopropylacrylamide) microgel latex formation
journal, April 1994

  • Wu, X.; Pelton, R. H.; Hamielec, A. E.
  • Colloid & Polymer Science, Vol. 272, Issue 4
  • DOI: 10.1007/BF00659460

Surface grafting of thermoresponsive microgel nanoparticles
journal, January 2011

  • Seeber, Michael; Zdyrko, Bogdan; Burtovvy, Ruslan
  • Soft Matter, Vol. 7, Issue 21
  • DOI: 10.1039/c1sm05924f

Effect of Cross-Link Density on the Internal Structure of Poly( N -isopropylacrylamide) Microgels
journal, September 2001

  • Varga, Imre; Gilányi, Tibor; Mészáros, Róbert
  • The Journal of Physical Chemistry B, Vol. 105, Issue 38
  • DOI: 10.1021/jp004600w

Small-angle neutron scattering study of structural changes in temperature sensitive microgel colloids
journal, April 2004

  • Stieger, Markus; Richtering, Walter; Pedersen, Jan Skov
  • The Journal of Chemical Physics, Vol. 120, Issue 13
  • DOI: 10.1063/1.1665752

Responsive core-shell microgels: Synthesis, characterization, and possible applications
journal, May 2013

  • Hellweg, Thomas
  • Journal of Polymer Science Part B: Polymer Physics, Vol. 51, Issue 14
  • DOI: 10.1002/polb.23294

Suppression of Multiple Scattering by Photon Cross-correlation Techniques
journal, September 1991

On the Structure of Poly( N -isopropylacrylamide) Microgel Particles
journal, May 2004

Temperature-sensitive poly(N-Isopropyl-Acrylamide) microgel particles: A light scattering study
journal, November 2008

The diffusion coefficient of a swollen microgel particle
journal, May 2003

Colloidal nature of star polymer dilute and semidilute solutions
journal, May 1991

  • Dozier, William D.; Huang, John S.; Fetters, Lewis J.
  • Macromolecules, Vol. 24, Issue 10
  • DOI: 10.1021/ma00010a026

Scattering by an Inhomogeneous Solid
journal, June 1949

  • Debye, P.; Bueche, A. M.
  • Journal of Applied Physics, Vol. 20, Issue 6
  • DOI: 10.1063/1.1698419

Structural properties of thermoresponsive poly( N -isopropylacrylamide)-poly(ethyleneglycol) microgels
journal, June 2012

  • Clara-Rahola, J.; Fernandez-Nieves, A.; Sierra-Martin, B.
  • The Journal of Chemical Physics, Vol. 136, Issue 21
  • DOI: 10.1063/1.4723686

UV Resonance Raman Determination of Molecular Mechanism of Poly( N -isopropylacrylamide) Volume Phase Transition
journal, April 2009

  • Ahmed, Zeeshan; Gooding, Edward A.; Pimenov, Konstantin V.
  • The Journal of Physical Chemistry B, Vol. 113, Issue 13
  • DOI: 10.1021/jp810685g

Microcalorimetric Investigation on the Lower Critical Solution Temperature Behavior of N -Isopropycrylamide- c o -Acrylic Acid Copolymer in Aqueous Solution
journal, June 2006

  • Weng, Yiming; Ding, Yanwei; Zhang, Guangzhao
  • The Journal of Physical Chemistry B, Vol. 110, Issue 24
  • DOI: 10.1021/jp0616922

Structural modifications in the swelling of inhomogeneous microgels by light and neutron scattering
journal, November 2002

    Sort by:
    [ × clear filter / sort ]

    Works referencing / citing this record:

    Synthesis of smart dual-responsive microgels: correlation between applied surfactants and obtained particle morphology
    journal, January 2019

    • Wiehemeier, Lars; Brändel, Timo; Hannappel, Yvonne
    • Soft Matter, Vol. 15, Issue 28
    • DOI: 10.1039/c9sm00690g

    Tuning the Swelling Properties of Smart Multiresponsive Core-Shell Microgels by Copolymerization
    journal, July 2019

      Sort by:
      [ × clear filter / sort ]

      Similar Records in DOE PAGES and OSTI.GOV collections: