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:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Delaware, Newark, DE (United States)
- 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}
}
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Cited by: 3 works
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