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The direct melt polymerization of poly(lactic acid-co-caprolactone) was studied by orthogonal experiment and SPSS software. 应用正交实验及SPSS统计软件研究聚乳酸-己内酯直接熔融聚合工艺。
Study on direct melt polymerization of poly (lactic acid-co-caprolactone) 聚乳酸-己内酯直接熔融聚合工艺的研究
Synthesis and characterization of polyglycollic acid via direct melt polymerization 直接熔融聚合聚乙醇酸的合成与表征
direct melt polymerization 直接熔融聚合
The process conditions in the stages of esterification, melt polymerization and solid state polymerization were discussed. 讨论了酯化反应,熔融聚合,固相聚合阶段的工艺条件。
The intrinsic viscosity of PEN chip subjected to solid state polymerization increased from 0 5 dL/g in the stage of melt polymerization to more than 0 7 dL/g. 通过固相聚合后 ;PEN切片的特性粘数可由熔融聚合的 0 .;5 d L/g提高到 0
Direct melt condensation polymerization 直接熔融缩聚
Poly (propylene carbonate) (PPC)/organic montmorillonite (OMMT) composite were prepared by direct melt intercalation. 通过熔融插层法制备了聚碳酸亚丙酯(PPC)/有机蒙脱土(OMMT)复合材料。
Poly(propylene carbonate) (PPC)/organophilic montmorillonite (OMMT) nanocomposites were prepared by direct melt intercalation. 通过熔融插层法制备了聚碳酸亚丙酯(PPC)/有机蒙脱土(OMMT)纳米复合材料。
Starting from lower molecular weight poly(D,L-lactic acid)(PDLLA) produced by direct melt polycondensation of D,L-lactic acid(D,L-LA),poly(lactic acid) drug delivery material was synthesized through diisocyanate chain extension. 以外消旋乳酸(D,L-LA)直接熔融聚合得到的低相对分子质量聚外消旋乳酸(PDLLA)为原料,通过二异氰酸酯扩链合成了聚乳酸类药物缓释材料。
Polypropylene/nano-montmorillonite (PP/MMT)nano composite was prepared by direct melting intercalation method.Mechanical properties and melt flow rate were measured. 通过直接熔融插层法制得聚丙烯/纳米蒙脱土复合材料,测量了复合材料的力学性能及熔体流动速率。
Aromatic hyperbranched polyesters(HBP) were synthesized by 1,2,4-benzenetricarboxylic anhydride,diols and monohydric alcohols using solution polymerization and melting polymerization. 以1,2,4-偏苯三酸酐、二元醇和一元醇为反应单体,采用溶液法和熔融法合成了具有芳香型结构的超支化聚酯。
Keywords lactic acid;glycolic acid;melt polymerization;direct method;microstructure; 乳酸;乙醇酸;熔融缩聚;直接法;微结构;
Keywords D;L-lactic acid （D;L-LA）;L-lactic acid （L-LA）;Direct melt copolycondensation;Biodegradable polymer;Poly（lactic acid-glycolic acid）（PLGA）;Reaction mechanism; 外消旋乳酸（D;L-LA）;左旋乳酸（L-LA）;直接熔融共聚;生物降解高分子;乳酸乙醇酸共聚物（PL-GA）;反应机理;
She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
He has chosen the most direct route. 他选取了最直的路线。
This text investigeted direct melting od Al-Si alloy. The results show advantage and opertion feasibility of the direct melting. The problems needing attention in opration were given. 通过对铝硅合金直接熔炼的研究,说明了铝硅合金直接熔炼的优点及操作的可行性,并指明了操作中应注意的问题。
DETERMINATION OF EQUILIBRIUM CONSTANT FOR SILICATE MELT POLYMERIZATION AND ITS APPLICATION 硅酸盐熔体聚合度的确定及其应用
She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。