期刊
CHINESE JOURNAL OF POLYMER SCIENCE
卷 34, 期 11, 页码 1330-1338出版社
SPRINGER
DOI: 10.1007/s10118-016-1852-y
关键词
Biodegradable polycarbonate; Microwave-assisted polymerization; Ring-opening polymerization; Hydrophilicity
资金
- National Natural Science Foundation of China [51373128, 51173140]
- Key National Research and Development Program [2016YFB1101302]
- Wuhan Science and Technology Innovation Team of Hi-tech Industrial Project, Hubei Province [2015070504020217]
- Wuhan Scientific and Technological Project [2013010501010131]
- University Students' President Funded Project, Wuhan Institute of Technology [2015004]
- E+ double-major program
- Innovation Fund for post-graduate education, Wuhan Institute of Technology, China [CX2014058, CX2015007]
Poly(9-phenyl-2,4,8,10-tetraoxaspiro-[5,5]undcane-3-one) ( PPTC) was synthesized by the microwave-assisted ring-opening polymerization ( MROP) of a six-membered cyclic carbonate monomer 9-phenyl-2,4,8,10-tetraoxaspiro[5,5]undcane-3-one ( PTC) with tin( II) 2-ethylhexanoate (Sn(Oct)(2)) or aluminum isopropoxide (Al((OPr)-Pr-i)(3)) as the catalysts. The obtained polycarbonates were further reduced by apalladium/carbonate catalyst (10% Pd/C) to afford partly deprotected polycarbonates containing hydroxyl groups ( HPPTC). These two types of polycarbonates were characterized by H-1-NMR, Fourier transform infrared spectroscopy ( FTIR), UV, gel permeation chromatography ( GPC), differential scanning calorimetry ( DSC), and automatic contact-angle measurements. The influence of the feed molar ratio of monomer-to-catalyst, the microwave irradiation power and the reaction time on the polymerization was also studied. The experimental results showed that HPPTC possessed significantly higher hydrophilicity and water absorption rate than PPTC.
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