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Syntheses and Properties of Novel Copolymers of Poly(1,4‐dioxane‐2‐one) and Aliphatic Polycarbonate Based on Ketal‐Protected Dihydroxyacetone
Author(s) -
Wang LianSheng,
Cheng SiXue,
Zhuo RenXi
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200525
Subject(s) - copolymer , dispersity , gel permeation chromatography , polymer chemistry , polycarbonate , molar mass distribution , chemistry , yield (engineering) , hydrolysis , fourier transform infrared spectroscopy , dihydroxyacetone , proton nmr , materials science , organic chemistry , polymer , chemical engineering , glycerol , engineering , metallurgy
Novel random copolymers of 1,4‐dioxane‐2‐one (DON) and 2,2‐ethylenedioxy‐1,3‐propanediol carbonate (EOPDC) are synthesized in bulk at 120 °C using Sn(Oct) 2 as a catalyst. The effects of different molar feed ratios of EOPDC/DON on the yield and molecular weight of the copolymers are investigated. The copolymers are obtained with a yield of 55.4–98%. The number‐average molecular weight of the copolymer is 0.49–4.18 × 10 4 g mol −1 with a polydispersity of 1.52–1.68. The poly(DON‐ co ‐EOPDC)s obtained are characterized by FTIR, 1 H NMR, and 13 C NMR spectroscopy, gel‐permeation chromatography (GPC), and DSC. The hydrolytic degradation of the copolymer in phosphate buffered saline (PBS) is also investigated. The results show that both the hydrophilicity and the degradation rate of the copolymers increase with increasing copolymer DON content.