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Deconstructing Oligomer Distributions: Discrete Species and Artificial Distributions
Author(s) -
De Neve Jeroen,
Haven Joris J.,
Harrisson Simon,
Junkers Tanja
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201906842
Subject(s) - oligomer , dispersity , polymerization , raft , chain transfer , polymer chemistry , polymer , molar mass distribution , gel permeation chromatography , chemistry , reversible addition−fragmentation chain transfer polymerization , glass transition , materials science , radical polymerization , organic chemistry
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.