Catalyst-Free Metathesis of Cyclic Acetals and Spirocyclic
Acetal Covalent Adaptable Networks
Posted on 2020-07-27 - 12:34
Due
to the exchangeability of dynamic covalent bonds in the covalent adaptable
networks (CANs) at elevated temperature, they possess recyclability
while still maintaining many of the superior properties of thermosets.
The exploration of dynamic covalent chemistry is of great significance
to the expansion of CANs library and hence the sustainable development
of thermosets. In this work, we discovered that, in absence of catalyst,
the direct metathesis of the cyclic acetals proceeds while the acyclic
acetals cannot. The metathesis kinetics of the cyclic acetals were
fully revealed with model compounds. For the CANs demonstration, a
series of cross-linked spirocyclic acetal polymers with excellent
reprocessability, high thermal stability, and high refractivity were
prepared via thiol–ene click polymerization. We envisage that
the uncovering of the catalyst-free metathesis of cyclic acetals will
enrich the dynamic chemistry of acetals and greatly promote the development
of acetal-based CANs and their potential applications in optical devices.
CITE THIS COLLECTION
DataCiteDataCite
3 Biotech3 Biotech
3D Printing in Medicine3D Printing in Medicine
3D Research3D Research
3D-Printed Materials and Systems3D-Printed Materials and Systems
4OR4OR
AAPG BulletinAAPG Bulletin
AAPS OpenAAPS Open
AAPS PharmSciTechAAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität HamburgAbhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)ABI Technik (German)
Academic MedicineAcademic Medicine
Academic PediatricsAcademic Pediatrics
Academic PsychiatryAcademic Psychiatry
Academic QuestionsAcademic Questions
Academy of Management DiscoveriesAcademy of Management Discoveries
Academy of Management JournalAcademy of Management Journal
Academy of Management Learning and EducationAcademy of Management Learning and Education
Academy of Management PerspectivesAcademy of Management Perspectives
Academy of Management ProceedingsAcademy of Management Proceedings
Academy of Management ReviewAcademy of Management Review
Yu, Shuangjian; Wu, Siwu; Zhang, Chengfeng; Tang, Zhenghai; Luo, Yanlong; Guo, Baochun; et al. (2020). Catalyst-Free Metathesis of Cyclic Acetals and Spirocyclic
Acetal Covalent Adaptable Networks. ACS Publications. Collection. https://doi.org/10.1021/acsmacrolett.0c00527