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Title: A scattering function of star polymers including excluded volume effects

Abstract

In this work we present a new model for the form factor of a star polymer consisting of self-avoiding branches. This new model incorporates excluded volume effects and is derived from the two point correlation function for a star polymer.. We compare this model to small angle neutron scattering (SANS) measurements from polystyrene (PS) stars immersed in a good solvent, tetrahydrofuran (THF). It is shown that this model provides a good description of the scattering signature originating from the excluded volume effect and it explicitly elucidates the connection between the global conformation of a star polymer and the local stiffness of its constituent branch.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Delaware, Newark, DE (United States)
  3. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1185496
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Crystallography (Online)
Additional Journal Information:
Journal Volume: 47; Journal Issue: 6; Journal ID: ISSN 1600-5767
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; star polymers; scattering functions; excluded volume effects

Citation Formats

Li, Xin, Do, Changwoo, Liu, Yun, Sánchez-Diáz, Luis, Smith, Gregory, and Chen, Wei-Ren. A scattering function of star polymers including excluded volume effects. United States: N. p., 2014. Web. doi:10.1107/S1600576714022249.
Li, Xin, Do, Changwoo, Liu, Yun, Sánchez-Diáz, Luis, Smith, Gregory, & Chen, Wei-Ren. A scattering function of star polymers including excluded volume effects. United States. https://doi.org/10.1107/S1600576714022249
Li, Xin, Do, Changwoo, Liu, Yun, Sánchez-Diáz, Luis, Smith, Gregory, and Chen, Wei-Ren. 2014. "A scattering function of star polymers including excluded volume effects". United States. https://doi.org/10.1107/S1600576714022249. https://www.osti.gov/servlets/purl/1185496.
@article{osti_1185496,
title = {A scattering function of star polymers including excluded volume effects},
author = {Li, Xin and Do, Changwoo and Liu, Yun and Sánchez-Diáz, Luis and Smith, Gregory and Chen, Wei-Ren},
abstractNote = {In this work we present a new model for the form factor of a star polymer consisting of self-avoiding branches. This new model incorporates excluded volume effects and is derived from the two point correlation function for a star polymer.. We compare this model to small angle neutron scattering (SANS) measurements from polystyrene (PS) stars immersed in a good solvent, tetrahydrofuran (THF). It is shown that this model provides a good description of the scattering signature originating from the excluded volume effect and it explicitly elucidates the connection between the global conformation of a star polymer and the local stiffness of its constituent branch.},
doi = {10.1107/S1600576714022249},
url = {https://www.osti.gov/biblio/1185496}, journal = {Journal of Applied Crystallography (Online)},
issn = {1600-5767},
number = 6,
volume = 47,
place = {United States},
year = {Tue Nov 04 00:00:00 EST 2014},
month = {Tue Nov 04 00:00:00 EST 2014}
}

Journal Article:
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Cited by: 3 works
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