Expansion Factor of a Part of a Polymer Chain in a Good Solvent Measured by Small-Angle Neutron Scattering

Yushu Matsushita, Ichiro Noda, Mitsuru Nagasawa, Timothy P. Lodge, Eric J. Amis, Charles C. Han

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The radii of gyration of deuterium-labeled sections of polystyrenes with narrow molecular weight distributions were determined in a good solvent (carbon disulfide) by small-angle neutron scattering (SANS). The expansion factors of the labeled sections were calculated from the measured radii of gyration using unperturbed dimensions estimated from literature radius of gyration-molecular weight relationships for polystyrenes. The expansion factors of the labeled sections are smaller than those of the whole chains but are larger than that of a whole chain with the same molecular weight as the labeled section. Both results are reasonable in comparison with a Monte Carlo calculation in the literature and also with the perturbation theory.

Original languageEnglish (US)
Pages (from-to)1785-1789
Number of pages5
JournalMacromolecules
Volume17
Issue number9
DOIs
StatePublished - Sep 1984

Fingerprint

Dive into the research topics of 'Expansion Factor of a Part of a Polymer Chain in a Good Solvent Measured by Small-Angle Neutron Scattering'. Together they form a unique fingerprint.

Cite this