Pal, Sunirmal; Sommerfeldt, Andreas; Davidsen, Maiken B.; Hinge, Mogens; Pedersen, Steen U.; Daasbjerg, Kim published the artcile< Synthesis and Closed-Loop Recycling of Self-Immolative Poly(dithiothreitol)>, Category: pyridine-derivatives, the main research area is recycling self immolative polydithiothreitol.
Self-immolative polymers (SIPs) are promising members of the emerging class of recyclable polymers with the ability to end-to-end depolymerize to their monomers. Unfortunately, SIPs are often synthesized by cumbersome procedures at low temperatures in protected atm. In this study, a SIP with a novel poly(disulfide) backbone is introduced, using DL-dithiothreitol (DTT) as the monomer. Remarkably, poly(DTT) can be produced by solid-state polymerization in a robust and easily scalable process by mech. mixing DTT with 2,2′-dithiodipyridine as the end-capping agent. The new polymer possesses good thermal and chem. stabilities, but once its depolymerization is triggered, this proceeds smoothly within minutes to afford cyclic DTT because of a favorable intramol. back-biting thiol-disulfide exchange reaction in the polymer backbone. As a proof of concept, the cyclic DTT waste was recovered, reduced to DTT monomer, and repolymd. in a closed-loop approach.
Macromolecules (Washington, DC, United States) published new progress about Chemical stability. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, Category: pyridine-derivatives.