Deconstructing Oligomer Distributions: Discrete Species and Artificial Distributions

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 diffusi...

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Vydáno v:Angewandte Chemie Ročník 131; číslo 39; s. 14007 - 14011
Hlavní autoři: De Neve, Jeroen, Haven, Joris J., Harrisson, Simon, Junkers, Tanja
Médium: Journal Article
Jazyk:angličtina
Vydáno: Weinheim Wiley Subscription Services, Inc 23.09.2019
Témata:
Addition polymerization
Chain transfer
Chemistry
Degree of polymerization
Diffusion
Diskrete Polymere
Dispersion
Dispersität
Glass transition temperature
Glasübergang
Libraries
Molecular weight
Physical properties
Polymerization
RAFT-Polymerisation
Transition temperatures
Viscosity
ISSN:0044-8249, 1521-3757
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Shrnutí: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. 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.
Bibliografie:ObjectType-Article-1
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ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201906842