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Title: Poly(styrene-graft-hyperbranched polyglycidol): synthesis and solution behavior of a hyperbranched polyelectrolyte

Abstract

This work presents a three-step synthetic procedure to obtain a hypergrafted copolymer composed of a glassy backbone with flexible branched pendant segments. The desired hypergrafted structure was obtained by using a polyfunctional macroinitiator, linear poly(styreneco- 4-hydroxystyrene), to yield polystyrene-graft-hyperbranched polyglycidol with randomly placed branch junctions. Atomic force microscopy, dynamic light scattering, and viscometry probed the aggregation and viscometric behavior of the polymer in DMF and DMF LiBr solutions. The polymer exhibited polyelectrolyte behavior demonstrated by a large increase in the reduced viscosity prior to neutralization with LiBr salt. Additionally, conformational changes were observed by dynamic light scattering in both the average aggregate size and aggregate population with the addition of LiBr salt.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1265451
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 8; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Goodwin, Andrew, Bobade, Sachin, Kang, Nam-Goo, Baskaran, Durairaj, Hong, Kunlun, and Mays, Jimmy. Poly(styrene-graft-hyperbranched polyglycidol): synthesis and solution behavior of a hyperbranched polyelectrolyte. United States: N. p., 2014. Web. doi:10.1039/C4RA11568F.
Goodwin, Andrew, Bobade, Sachin, Kang, Nam-Goo, Baskaran, Durairaj, Hong, Kunlun, & Mays, Jimmy. Poly(styrene-graft-hyperbranched polyglycidol): synthesis and solution behavior of a hyperbranched polyelectrolyte. United States. doi:10.1039/C4RA11568F.
Goodwin, Andrew, Bobade, Sachin, Kang, Nam-Goo, Baskaran, Durairaj, Hong, Kunlun, and Mays, Jimmy. Thu . "Poly(styrene-graft-hyperbranched polyglycidol): synthesis and solution behavior of a hyperbranched polyelectrolyte". United States. doi:10.1039/C4RA11568F.
@article{osti_1265451,
title = {Poly(styrene-graft-hyperbranched polyglycidol): synthesis and solution behavior of a hyperbranched polyelectrolyte},
author = {Goodwin, Andrew and Bobade, Sachin and Kang, Nam-Goo and Baskaran, Durairaj and Hong, Kunlun and Mays, Jimmy},
abstractNote = {This work presents a three-step synthetic procedure to obtain a hypergrafted copolymer composed of a glassy backbone with flexible branched pendant segments. The desired hypergrafted structure was obtained by using a polyfunctional macroinitiator, linear poly(styreneco- 4-hydroxystyrene), to yield polystyrene-graft-hyperbranched polyglycidol with randomly placed branch junctions. Atomic force microscopy, dynamic light scattering, and viscometry probed the aggregation and viscometric behavior of the polymer in DMF and DMF LiBr solutions. The polymer exhibited polyelectrolyte behavior demonstrated by a large increase in the reduced viscosity prior to neutralization with LiBr salt. Additionally, conformational changes were observed by dynamic light scattering in both the average aggregate size and aggregate population with the addition of LiBr salt.},
doi = {10.1039/C4RA11568F},
journal = {RSC Advances},
issn = {2046-2069},
number = 8,
volume = 5,
place = {United States},
year = {2014},
month = {12}
}

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