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Acyclic Diene Metathesis (ADMET) Polymerization of 2,2,6,6‐Tetramethylpiperidine‐1‐sulfanyl (TEMPS) Dimers
Author(s) -
Hobich Jan,
Huber Birgit,
Theato Patrick,
Mutlu Hatice
Publication year - 2021
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202100118
Subject(s) - polymerization , metathesis , polymer chemistry , chemistry , polymer , acyclic diene metathesis , sulfanyl , diene , ring opening metathesis polymerisation , radical polymerization , size exclusion chromatography , photochemistry , organic chemistry , natural rubber , enzyme
The preparation of polymers containing sulfur–nitrogen bond derivatives, particularly 2,2,6,6‐tetramethylpiperidine‐1‐sulfanyl (TEMPS) dimers (i.e., BiTEMPS ), has been limited to free‐radical or conventional step‐growth polymerization as result of the inherent thermal lability of the BiTEMPS unit. Accordingly, a novel poly(diaminodisulfide) possessing the BiTEMPS functional group is synthesized via acyclic diene metathesis (ADMET) polymerization at 65–75 °C within 3 h with precise control over the primary polymer structure. Polymer is isolated with an M n of 20 400 g mol −1 and Ð of 1.9. Importantly, detailed nuclear magnetic resonance (NMR), size exclusion chromatography, attenuated total reflectance Fourier transform infrared (ATR‐IR) in addition to elemental analysis studies of the BiTEMPS polymer confirm the successful polymerization, and show that the BiTEMPS unit remains intact during the polymerization process. Furthermore, the previously unexplored UV‐responsiveness of the BiTEMPS decorated polymer backbone is investigated for the very first time.