Polystyrene Size Determination in Polystyrene and Poly(vinyl methyl ether) Using Electronic Excitation Transport

Autor:	Deborah M. Hussey, Nathan A. Diachun, Michael D. Fayer
Rok vydání:	1998
Předmět:	chemistry.chemical_classification Materials science Ether Polymer Surfaces Coatings and Films chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Radius of gyration Copolymer Molecule Polymer blend Polystyrene Physical and Theoretical Chemistry Fluorescence anisotropy
Zdroj:	The Journal of Physical Chemistry B. 102:7112-7119
ISSN:	1520-5207 1520-6106
DOI:	10.1021/jp981590e
Popis:	Poly(styrene-co-2-vinylnaphthalene) with a 1.25% fraction of naphthyl fluorophores is studied in two polymeric hosts, polystyrene and poly(vinyl methyl ether). In the polystyrene host, measurement of the electronic excitation transport-induced fluorescence polarization anisotropy decay, r(t), in conjunction with a previous quantitative statistical theory of electronic excitation transport on lightly tagged polymer chains, allows a determination of the copolymer radius of gyration. Comparison with light scattering measurements from the literature establishes the θ-condition nature of this solid system. Poly(vinyl methyl ether) forms a compatible polymer blend with polystyrene. Analysis of r(t) data shows that the radius of gyration of a copolymer molecule is expanded in poly(vinyl methyl ether) relative to the θ-condition at room temperature. The synthesis of poly(styrene-co-2-vinylnaphthalene) is detailed.
Databáze:	OpenAIRE
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