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Synthesis of Terpolymers at Mild Temperatures Using Dynamic Sulfur Bonds in PolyS-Divinylbenzene
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Architecture-Controlled Ring-Opening Polymerization for Dynamic Covalent Poly(disulfide)s
Yun Liu1,2,3, Yuan Jia1,2,3, Qiong Wu2,3
1Joint Center for Energy Storage Research , Argonne National Laboratory , 9700 South Cass Avenue , Lemont , Illinois 60439 , United States.
Journal of the American Chemical Society
|October 12, 2019
Summary
Researchers developed a new ring-opening polymerization method to control poly(disulfide) architecture. This strategy allows for the synthesis of large polymers and monomer recycling, expanding material potential.
Area of Science:
- Polymer Chemistry
- Materials Science
Background:
- Poly(disulfide)s are dynamic covalent polymers with tunable properties.
- Controlling polymer architecture (cyclic vs. linear) is crucial for material performance.
Purpose of the Study:
- To develop a strategy for controlling the architecture of poly(disulfide)s using ring-opening polymerization.
- To enable the synthesis of large polymers and facilitate monomer recycling.
Main Methods:
- Utilizing ring-opening polymerization with aryl thiol initiators to favor cyclic polymers.
- Employing alkyl thiol initiators to promote linear polymer formation.
- Achieving catalytic depolymerization for monomer recovery.
Main Results:
- Demonstrated control over poly(disulfide) architecture by selecting specific thiol initiators.
- Synthesized high molecular weight polymers up to 630 kDa.
- Successfully achieved catalytic depolymerization for monomer recycling.
Conclusions:
- The developed strategy offers precise control over polymer geometry and length.
- This advancement allows for better characterization of structure-property relationships in dynamic covalent polymers.
- Expands the potential applications of poly(disulfide)s in materials science.
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