Journal article
Onset of tethered chain overcrowding
Physical review letters, v 93(2), pp 028301-1
09 Jul 2004
PMID: 15323956
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We proposed an approach to precisely control the density of tethered chains on solid substrates using PEO-b-PS and PLLA-b-PS. As the crystallization temperature Tx increased, the PEO or PLLA lamellar crystal thickness d(L) increased as well as the reduced tethering density sigma; of the PS chains. The onset of tethered PS chains overcrowding in solution occurs at sigma(*) approximately 3.7-3.8 as evidenced by an abrupt change in the slope between (d(L))(-1) and Tx. This results from the extra surface free energy created by the tethered chain that starts to affect the growth barrier of the crystalline blocks.
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Details
- Title
- Onset of tethered chain overcrowding
- Creators
- William Y Chen - Maurice Morton Institute, Department of Polymer Science, University of Akron, Akron, Ohio 44325-3909, USAJoseph X ZhengStephen Z D ChengChristopher Y LiPing HuangLei ZhuHuiming XiongQing GeYa GuoRodric P QuirkBernard LotzLingfeng DengChi WuEdwin L Thomas
- Publication Details
- Physical review letters, v 93(2), pp 028301-1
- Publisher
- Cold Spring Harbor Press; United States
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000222532100076
- Scopus ID
- 2-s2.0-4043123858
- Other Identifier
- 991014877661404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Multidisciplinary