摘要
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（OiPr）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 ^1H-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.
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（OiPr）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 ^1H-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.
基金
financially supported by the National Natural Science Foundation of China(Nos.51373128 and 51173140)
Key National Research and Development Program(No.2016YFB1101302)
Wuhan Science and Technology Innovation Team of Hi-tech Industrial Project,Hubei Province(No.2015070504020217)
Wuhan Scientific and Technological Project(No.2013010501010131)
University Students’ President Funded Project,Wuhan Institute of Technology(No.2015004)
“E+” double-major program
Innovation Fund for post-graduate education(Nos.CX2014058 and CX2015007),Wuhan Institute of Technology,China
