Deconstructing Oligomer Distributions: Discrete Species and Artificial Distributions.

Autor: De Neve J; Polymer Reaction Design Group, School of Chemistry, Monash University, 19 Rainforest Walk, Building 23, Clayton, VIC, 3800, Australia.; Institute for Materials Research, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium., Haven JJ; Polymer Reaction Design Group, School of Chemistry, Monash University, 19 Rainforest Walk, Building 23, Clayton, VIC, 3800, Australia., Harrisson S; Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse, 118 Route de Narbonne, 31062, Toulouse Cedex 9, France., Junkers T; Polymer Reaction Design Group, School of Chemistry, Monash University, 19 Rainforest Walk, Building 23, Clayton, VIC, 3800, Australia.; Institute for Materials Research, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2019 Sep 23; Vol. 58 (39), pp. 13869-13873. Date of Electronic Publication: 2019 Aug 27.
DOI: 10.1002/anie.201906842
Abstrakt: The separation of an oligo(methyl acrylate) distribution, obtained from reversible addition-fragmentation chain transfer (RAFT) polymerization, in a discrete (dispersity=1) oligomeric library (degree of polymerization between 1 and 22) is presented. The properties of this library in terms of diffusivity, glass transition temperature, and viscosity are determined, filling a significant knowledge gap associated with these materials. The obtained oligomer library is used to construct artificial oligomer distributions on demand. These artificial oligomer distributions are used to highlight the potential to tailor physical properties of a material, while concomitantly demonstrating the limitations associated with size-exclusion chromatography analysis of molecular weight and dispersity in particular.
(© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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