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t 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 H_2O_2 as initiatorto give poly(l’-O-vinyladipoyl-sucrose) with M_n = 33,000 and M_w = 53,200, M_w/M_n = 1.61. The polymer was biodegradable.After 6 days in aqueous buffer (pH 7), this alkaline protease could degrade poly(l’-O-vinyladipoyl-sucrose) to M_n of ca.1080, M_w/M_n = 3.30 (37℃), and M_n of ca. 5200, M_w/M_n = 2.44 (4℃). The polymer containing the sucrose branch would be afunctional material in various application fields.
t 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 ° C for 7 days gave VAS (yield 55%) withoutany blocking / deblocking steps. The vinyl sucrose ester could be polymerized with potassium persulfate and H_2O_2 as initiatorto give poly (l’-O-vinyladipoyl-sucrose) with M_n = 33,000 and M_w = 53,200 , M_w / M_n = 1.61. This polymer was biodegradable. After 6 days in aqueous buffer (pH 7), this alkaline protease could be degrade poly (l’-O- vinyladipoyl- sucrose) to M_n of ca.1080, M_w / M_n = 3.30 (37 ° C.), and M_n of ca. 5200, M_w / M_n = 2.44 (4 ° C.) The polymer containing the sucrose branch would be afunctional material in various application fields.