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Direct probe of end-segment distribution in tethered polymer chains

Basu, JK and Boulliard, JC and Capelle, B and Daillant, J and Guenoun, P and Mays, JW and Yang, J (2001) Direct probe of end-segment distribution in tethered polymer chains. In: Macromolecules, 40 (17). pp. 6333-6339.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ma070817d


End-tethered chains made of an adsorbed diblock copolymer of polystyrene (PS)-polyisoprene (PI) bearing an end-segment including a Ge atom are built by the Langmuir-Schaeffer technique. They are studied both in the dry state and in a good solvent for the PI chain using grazing incidence X-ray standing waves. The analysis of the signal provides a direct measurement of the end-segment distribution which is found to be singular and mostly localized to a plane in the dry case. In the good solvent case, end-segments are found to span the entire assembly and compare very well with results obtained by Kreer et al.

Item Type: Journal Article
Publication: Macromolecules
Publisher: American Chemical Society
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 10 Jun 2010 09:30
Last Modified: 19 Sep 2010 05:56
URI: http://eprints.iisc.ac.in/id/eprint/26163

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