松柏醇-β-D-葡萄糖苷-[α-^(13)C]与造纸废水中LCC的聚合反应  

Study on the polymerization of coniferin-[α-^(13)C] with LCC in papermill effluent

作　　者：赵芳[1] 谢益民[1] 王涛[2] 

机构地区：[1]造纸科学与技术省部共建教育部重点实验室山东轻工业学院,山东济南250353 [2]山东出入境检验检疫局,山东青岛266071

出　　处：《化学研究与应用》2008年第8期957-962,共6页Chemical Research and Application

基　　金：国家自然科学基金资助项目(30471365;20674046)

摘　　要：为了有效地去除废水中水溶性、难降解木素及木素碳水化合物复合体(LCC),降低废水的污染负荷。文研究了在木素氧化酶催化下,木素前驱物松柏醇-β-D-葡萄糖苷-[α-13C]与废水中的木素碳水化合物复合体反应的方法及其机理。采用了13C同位素示踪技术,并结合红外谱图分析、核磁共振技术来探讨聚合产物的化学结构。同时应用了GPC分析手段测定了聚合产物的相对分子质量Mn。研究表明:木素前驱物松柏醇-β-D-葡萄糖苷能与废水中LCC发生脱氢聚合反应,同时GPC测定的结果表明聚合后相对分子质量也明显增大,Mn从406上升为23810-36886。反应生成聚合产物为疏水性较好的木素-碳水化合物复合大分子而沉淀析出。In order to decrease lignin-carbohydrate complex （LCC） concentration of effluent and reduce the poUution duty of the effluent from paper mill. The polymerization recation between coniferin and lignin-carbohydrate complex in the effluent catalyzed by lignin oxiclase was investigated. FT-IR and Isotopic tracer method,combined with ^13C-NMR technology was applied to analyze the chemical structure of the obtained polymer. At the same time, GPC was used to determine the molecular of the polymerization products. The results indicated that coniferin-[α-^13 C] could polymerize with LCC by dehydrogenation. While GPC determination proved that Mn increased from 406 to 23810 -36886. Polymerization products of LCC could precipitated because of more molecular weight more hydrophobic.

关 键 词：造纸废水 松柏醇-β-D-葡萄糖苷 木素-碳水化合物复合体 碳-13 同位素示踪 

分 类 号：O629.13[理学—有机化学]