Deconstructing Oligomer Distributions: Discrete Species and Artificial Distributions. Issue 39 (27th August 2019)

• Record Type: Journal Article
• Authors: De Neve, Jeroen; Haven, Joris J.; Harrisson, Simon; Junkers, Tanja
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 39(2019)
• Page Start: 13869
• Page End: 13873
• Publication Date: 2019-08-27
• Subjects: diffusion -- discrete polymers -- dispersity -- glass transition -- RAFT polymerization; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201906842
• Languages: English
• ISSNs: 1433-7851

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 : A discrete RAFT library : The separation of an oligo(methyl acrylate) distribution obtained from RAFT polymerization in a discrete oligomeric library is presented. The properties of this library (diffusivity, glass transition temperature and viscosity) are determined. The obtained oligomer library is used to construct artificial oligomer distributions on demand.