Linear or branched structure? Probing molecular architectures of fullerene–styrene copolymers by size exclusion chromatographs with online right-angle laser-light scattering and differential viscometric detectors

Autor:	Jacky Wing Yip Lam, Ben Zhong Tang, Jimmy W. Mays, Fennie S. M. Leung, Zhongde Xu, Han Peng, Yi Huang
Rok vydání:	2004
Předmět:	Polymers and Plastics Scattering Intrinsic viscosity Organic Chemistry Size-exclusion chromatography Analytical chemistry Viscometer Styrene Gel permeation chromatography chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Copolymer Radius of gyration
Zdroj:	Polymer. 45:4811-4817
ISSN:	0032-3861
DOI:	10.1016/j.polymer.2004.04.056
Popis:	The poly(C60-co-styrene)s prepared by radical copolymerizations of C60 and styrene in bulk were characterized by multiple-detector size-exclusion chromatographs consisting of a refractometer, a differential viscometer, and/or a right-angle laser-light scattering photometer. The multidetector systems enabled the determinations of reliable, absolute molecular weights of the copolymers. The plots of intrinsic viscosity vs. molecular weight and radius of gyration vs. molecular weight offered valuable information about the molecular architectures of the copolymers. The slopes of the plots reveal that the structure of the copolymer changes with its C60 content: the copolymer with a low C60 content of 0.58 wt% possesses a linear structure, whereas its conger with a high C60 content of 1.14 wt% possesses a branched structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d53314e2d0803619e17a051c11d42849 https://doi.org/10.1016/j.polymer.2004.04.056 Zobrazit plný text záznamu Full Text from ScienceDirect