Citation:
. CHEMOENZYMATIC SYNTHESIS OF BIODEGRADABLE POLY(1’-O-VINYLADIPOYL-SUCROSE)[J]. Chinese Journal of Polymer Science,
;2002, 20(6): 579-584.
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A novel polymer containing the sucrose group was synthesized by radical polymerization from an enzymaticallyprepared monomer, l'-O-vinyledipoyl-sucrose (VAS). Transesterification reaction of sucrose with divinyl adipate inanhydrous pyridine catalyzed by an alkaline protease from Bacillus subtilis at 60℃ for 7 days gave VAS (yield 55%) withoutany blocking/deblocking steps. The vinyl sucrose ester could be polymerized with potassium persulfate and H2O2 as initiatorto give poly(l'-O-vinyladipoyl-sucrose)with Mn=33,000 and Mw=53,200,Mw/Mn=1.61.The polymer was biodegradable.After 6 days in aqueous buffer (pH 7),this alkaline protease could degrade poly(1′-O-vinyladipoyl-sucrose) to Mn of ca. 1080,Mw/Mn=3.30(37℃),and Mn of ca.5200,Mw/Mn=2.44(4℃).The polymer containing the sucrose branch would be a functional material in various application fields.
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