Study on the Keto-enol Tautomerism of Dibenzoylmthane;
二苯甲酰甲烷酮式―烯醇式互变异构的研究
The study of structures and chemical behavior of stable enols is important from both theoretical and synthetic points of view.
烯醇受环境因素和取代基的影响在一定条件下可以稳定存在。
Synthesize on modification for polyvinyl alcohol by etherifying agent;
醚化改性聚乙烯醇的合成研究
Preparation and characterization of paraffin/polyvinyl alcohol phase change fibers for energy storage;
石蜡/聚乙烯醇相变储能纤维的制备与表征
Study on esterification modification for polyvinyl alcohol;
酯化改性聚乙烯醇的研究
PVA-Assisted Synthesis and Characterization of CdS Nanowires;
聚乙烯醇辅助合成CdS纳米线及其表征
Study on Gasoline Barrier Property of PVA Blown Tubes;
聚乙烯醇吹塑管坯汽油阻隔性能的研究
Treatment of PVA-containing Wastewater with Coagulating Method;
混凝法处理含聚乙烯醇废水
The casting solution is comprised of polyvinyl alcohol(PVA) as membrane material, polyethylene glycols(PEG) as additive.
采用聚乙烯醇(PVA)为膜材料,以聚乙二醇(PEG)为致孔剂,利用相转化法制备超滤(UF)膜用于分离蚕蛹蛋白。
Biological activated carbon fiber beads were prepared by fixing microbe which originated from activated sludge incubated in phenol,on activated carbon fiber(ACF) and using polyvinyl alcohol(PVA) as embedding material.
采用经苯酚驯化后的活性污泥,以活性炭纤维为载体,以聚乙烯醇(PVA)为包埋剂制成固定化生物活性炭纤维小球。
The casting solution is comprised of polyvinyl alcohol(PVA)as membrane material, polyethylene glycols(PEG)as additive.
本研究以聚乙烯醇(PVA)为膜材料,以聚乙二醇(PEG)为致孔剂配制铸膜液,凝固浴为去离子水,利用相转化法制备超滤(UF)膜用于分离蚕蛹蛋白。
The preparation methods of dimethylamine hydrochloride/chromium trioxide oxidation reagent and the selective oxidation reaction of cyclohexenol to cyclohexenone with this catalyst are studied.
研究了负载型盐酸二甲胺三氧化铬氧化剂的制备方法,以环己烯醇选择性氧化成环己烯酮,考察了载体、制备方法、活化条件对氧化剂性能的影响。
Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide.
利用脂肪酶在有机介质中催化制备过氧酸,丙烯醇在过氧酸的作用下发生环氧化反应生成环氧丙醇。
At first,the intermediate of sodium 3-chloro-2-hydroxy propanesulfate was synthesized from epichlorohydrin and sodium bisulfite;And then,using NaOH as a catalyst,the title compound has been synthesized from intermediate and allyl alcohol to reach the yield of about 70%.
先由环氧氯丙烷和亚硫酸氢钠合成中间体3-氯-2-羟基丙磺酸钠,然后中间体再与丙烯醇在氢氧化钠催化下生成目标产物2-羟基-3-烯丙氧基丙磺酸钠。
Prepared salinity resisting gardening polymer gels by using acrylicc acid and allyl alcohol,polyvingl alcohol as monomer, and n.
以丙烯酸盐,丙烯醇,聚乙烯醇等为单体,60Coγ射线引发聚合制备耐盐性吸水凝胶基质,研究了单体配比,交联剂用量,辐照剂量,剂量率,聚合温度,丙烯醇用量,水解度等对吸液能力的影响。
Study on the separation and purification of polyprenols from ginkgo biloba leaves;
银杏叶聚戊烯醇的分离纯化
Application of orthogonal test on polyprenols extraction from Ginkgo biloba leaves;
正交设计法在银杏叶聚戊烯醇提取工艺中的应用
Isolation and Analysis of Polyprenols in Ginkgo biloba Leaves;
银杏叶聚戊烯醇类化合物的制备与分析