Synthesis of poly(disulfide)s with narrow molecular weight distributions via lactone ring-opening polymerization |
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| Authors: | Sungwhan Kim Kamila I Wittek Yan Lee |
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| Institution: | Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826 Korea.; Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz Germany |
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| Abstract: | We report the first example of controlled polymerization of poly(disulfide)s with narrow molecular weight distributions. 1,4,5-oxadithiepan-2-one (OTP), a disulfide-containing 7-membered ring lactone, was polymerized by using the diphenylphosphate (DPP) catalyzed lactone ring-opening polymerization method. The polymerization proceeded in a living manner, and the resulting polymers displayed very narrow polydispersity index (PDI) values below 1.1 and excellent backbone degradability responding to reducing conditions and UV irradiation.We report the first example of controlled polymerization of poly(disulfide)s with narrow molecular weight distributions. |
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