Deconstructing Oligomer Distributions: Discrete Species and Artificial Distributions. (27th August 2019)

• Record Type: Journal Article
• Authors: De Neve, Jeroen; Haven, Joris J.; Harrisson, Simon; Junkers, Tanja
• Is Part Of: Angewandte Chemie. Volume 131:Number 39(2019)
• Page Start: 14007
• Page End: 14011
• Publication Date: 2019-08-27
• Subjects: Diffusion -- Diskrete Polymere -- Dispersität -- Glasübergang -- RAFT-Polymerisation; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201906842
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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. Abstract : Eine diskrete RAFT‐Bibliothek : Durch die Auftrennung einer Oligomethylacrylatverteilung, erhalten durch RAFT‐Polymerisation, wird eine diskrete Oligomerenbibliothek aufgebaut. Die Eigenschaften dieser Bibliothek (Diffusionsvermögen, Glasübergangstemperatur und Viskosität) werden bestimmt. Die erhaltene Oligomerbibliothek wird verwendet, um eine künstliche Oligomerenverteilung nach Bedarf zu erzeugen.