直接缩聚法,direct polycondensation method
1)direct polycondensation method直接缩聚法
1.This paper introduced the methods of synthesis processes,included thedirect polycondensation method and indirect ring open polymerization,and analyzed the advantage and disadvantage of the craft.分析了聚乳酸直接缩聚法(PC法)和开环聚合法(ROP法)的优缺点,介绍了聚乳酸在生物医学、农用地膜、包装及林业、沙漠绿化等领域的应用,并在开环聚合法中提出了制造高分子量且降低成本的有效方法和今后可能的发展方向。
英文短句/例句
1.Synthesis and Characterization of Sulfonated Polybenzimidazoles by Direct Polycondensation for Proton Exchange Membranes;直接缩聚法制备磺化聚苯并咪唑及其性能表征
2.Direct synthesis of poly(L-lactic acid) by melt polycondensation熔融缩聚法直接合成聚L-乳酸的研究
3.Direct Synthesis of Poly(L-Lactic Acid) by Melt Polycondensation Under Continuous Microwave Irradiation连续微波辐射直接熔融缩聚法合成聚L-乳酸
4.Polylactic acid (PLA) of different molecular weights were synthesized by the direct condensation of lactic acid with modified gneiss as the catalyst, or with modified gneiss and stannous caprylate as the catalyst in the same reaction conditions and different reaction times.以天然矿石－改性片麻岩为聚合反应的催化剂，通过直接缩聚方法制备了不同分子量的聚乳酸。
5.Chain extension and modification of polylactic acid homopolymer synthesized via direct melt copolycondensation by IPDI/PEGIPDI和PEG对乳酸直接熔融缩聚物的扩链改性
6.Studies on Direct Synthesis of Poly (Lactic Acid) and Its Co-polymer;聚乳酸及其共聚物直接法合成的研究
7.Synthesis of Poly(lactic acid-co-valine) via Direct Melt Copolycondensation直接熔融聚合法合成聚(乳酸-缬氨酸)
8.It is mainly synthesized by two chemical ways: ring-opening polymerization and direct polycondensation.合成聚苹果酸的化学方法主要有开环聚合法与直接聚合法。
9.An Alternative Route to (3′→5′) Methylene Acetal Linked Di-and Trideoxynucleosides(3′→5′)亚甲基缩醛连接的二聚和三聚体脱氧核苷的另法合成
10.Test methods for compression and mechanical connectors for conductors of power cables--Test methods for measurement of D.C resistance of connectorsGB/T9327.2-1988电缆导体压缩和机械连接接头试验方法直流电阻试验方法
11.Determination of Terminal OH Groups in Polymers by Differential Direct Injection Enthalpimetry差示直接注入热函法测定聚合物的端羟值
12.Studies on Grafting Polymerization of Glycidyl Methacrylate on Silica Nanoparticles by ATRP Method;ATRP法在SiO_2表面接枝聚甲基丙烯酸缩水甘油酯的研究
13.Direct Melt Polycondensation and Characterization of Polylactic acid Modified by Diethanolamine二乙醇胺改性聚乳酸的直接熔融聚合法合成及其表征
14.Influences of Feed Ratio on the Biodegradable Material Polylactic Acid Modified by L-alanine via Direct Melt Copolymerization投料比对丙氨酸直接熔融聚合法改性聚乳酸的影响
15.High shrinkage PAN bulk top are produced by using the process of" drawing to break".论述了用拉断法直接制条生产高缩率腈纶膨体纱毛条的生产工艺。
16.Methods Cancerous ascite was injected into rat liver directly after concentrated by centrifugal effect.方法将经过离心浓缩的癌性腹水直接注入大鼠肝脏。
17.The Application of Fringe Method as the Outflow Boundary Condition for the Direct Numerical Simulation of Compressible Flows;嵌边法出流条件在可压缩流直接数值模拟中的应用
18.testing methods for polyvinyl butyral聚乙烯缩丁醛试验方法
相关短句/例句
direct polycondensation直接缩聚
1.Kinetics ofdirect polycondensation preparing polylactic acid by using lactic acid;乳酸直接缩聚制备聚乳酸的动力学
2.Research progress in synthesis of poly (lactic acid) bydirect polycondensation;直接缩聚合成聚乳酸研究进展
3.Synthesis and Characterization of Sulfonated Polybenzimidazoles by Direct Polycondensation for Proton Exchange Membranes;直接缩聚法制备磺化聚苯并咪唑及其性能表征
3)direct condensing method直接缩合法
1.Nitrodiphenylamine is synthesiized bydirect condensing method,adsopting aniline and 2-nitrochlorobenzene as feeds,PEG as phase transfer catalyst.以苯胺、邻硝基氯苯为原料 ,采用直接缩合法引入相转移催化剂合成邻硝基二苯胺。
4)direct melt polycondensation直接熔融缩聚
5)Direct Polymerization直接缩合聚合
6)direct cluster method直接聚类法
延伸阅读
直接不经过中间事物的。与“间接”相对：直接取用｜直接关系。
