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Multicomponent Spiropolymerization of Diisocyanides, Diethyl Acetylenedicarboxylate, and Halogenated Quinones.
- Source :
-
Macromolecular rapid communications [Macromol Rapid Commun] 2021 Jun; Vol. 42 (12), pp. e2100029. Date of Electronic Publication: 2021 May 14. - Publication Year :
- 2021
-
Abstract
- Multicomponent spiropolymerization (MCSP) provides an efficient synthetic tool for the construction of spiropolymers based on nonspiro monomers. In this study, a method of MCSP using diisocyanides 1, diethyl acetylenedicarboxylate 2, and halogenated quinones 3 is developed for the in situ construction of bis-spiropolymers with high molecular weights (M <subscript>w</subscript> up to 29 200) and good yields (up to 87.7%) under mild reaction conditions. The structure of the obtained bis-spiropolymers is confirmed by gel permeation chromatography, Fourier transform infrared spectroscopy, and nuclear magnetic resonance analysis. Halogenated bis-spiropolymers show good thermal stability, good solubility, and film-forming ability. The photosensitizer rhodamine B is used as a doping agent to induce the photodegradation of the polymer P1a3c into small-molecule segments, which results in the slow release of halogenated spiro-groups under irradiation with simulated sunlight. This finding reveals that P1a3c has the potential to be applied in pesticides. Therefore, this MCSP is a novel method for preparing halogen-containing bis-spiropolymers, which accelerates the development of multifunctional polymer materials.<br /> (© 2021 Wiley-VCH GmbH.)
- Subjects :
- Photolysis
Polymers
Spectroscopy, Fourier Transform Infrared
Alkynes
Quinones
Subjects
Details
- Language :
- English
- ISSN :
- 1521-3927
- Volume :
- 42
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Macromolecular rapid communications
- Publication Type :
- Academic Journal
- Accession number :
- 33987894
- Full Text :
- https://doi.org/10.1002/marc.202100029