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      Chalcogenide hybrid inorganic/organic polymers (CHIPs) via inverse vulcanization and dynamic covalent polymerizations

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          Abstract

          Poly(sulfur- random-styrene) was made via inverse vulcanization and used for dynamic covalent copolymerization (DCP) to incorporate novel vinylic monomers.

          Abstract

          We report on the preparation and modification of chalcogenide hybrid inorganic/organic polymer (CHIPs) via the inverse vulcanization of elemental sulfur with styrenics to afford low glass transition ( T g) copolymers. Furthermore, poly(sulfur- random-styrene) (poly(S- r-Sty)) can be further utilized as reactive liquid resins that are miscible with a wider range of styrenic, acrylate and allylic comonomers. We describe a new process termed, dynamic covalent polymerization (DCP), where the dynamic S–S bonds in poly(S- r-Sty) liquid polysulfides were thermally activated to generate sulfur radicals that added to vinylic comonomers to prepare novel terpolymer CHIPs. Using this sequential process we demonstrate the ability to incorporate functional comonomers that were otherwise immiscible with liquid sulfur.

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          Using the dynamic bond to access macroscopically responsive structurally dynamic polymers.

          New materials that have the ability to reversibly adapt to their environment and possess a wide range of responses ranging from self-healing to mechanical work are continually emerging. These adaptive systems have the potential to revolutionize technologies such as sensors and actuators, as well as numerous biomedical applications. We will describe the emergence of a new trend in the design of adaptive materials that involves the use of reversible chemistry (both non-covalent and covalent) to programme a response that originates at the most fundamental (molecular) level. Materials that make use of this approach - structurally dynamic polymers - produce macroscopic responses from a change in the material's molecular architecture (that is, the rearrangement or reorganization of the polymer components, or polymeric aggregates). This design approach requires careful selection of the reversible/dynamic bond used in the construction of the material to control its environmental responsiveness.
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            Elemental-Sulfur-Mediated Facile Synthesis of a Covalent Triazine Framework for High-Performance Lithium-Sulfur Batteries

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              New infrared transmitting material via inverse vulcanization of elemental sulfur to prepare high refractive index polymers.

              Polymers for IR imaging: The preparation of high refractive index polymers (n = 1.75 to 1.86) via the inverse vulcanization of elemental sulfur is reported. High quality imaging in the near (1.5 μm) and mid-IR (3-5 μm) regions using high refractive index polymeric lenses from these sulfur materials was demonstrated.
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                Author and article information

                Contributors
                Journal
                PCOHC2
                Polymer Chemistry
                Polym. Chem.
                Royal Society of Chemistry (RSC)
                1759-9954
                1759-9962
                2017
                2017
                : 8
                : 34
                : 5167-5173
                Affiliations
                [1 ]Department of Chemistry and Biochemistry
                [2 ]University of Arizona
                [3 ]1306 East University Boulevard
                [4 ]Tucson
                [5 ]USA
                [6 ]School of Chemical and Biological Engineering
                [7 ]Program for Chemical Convergence for Energy & Environment
                [8 ]The National Creative Research Initiative Center for Intelligent Hybrids
                [9 ]Seoul 151-744
                [10 ]Korea
                Article
                10.1039/C7PY00587C
                39dce4df-423f-4b36-b50b-1edbd220b4d7
                © 2017
                History

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