Study on chain extension of L-lactic acid oligomer with isocyanate
L-乳酸低聚物的异氰酸酯扩链反应工艺研究
The optimal conditions for chain extension and the optimal amount of chain extender were obtained through analysis.
用化学反应平衡的方法对开环扩链型扩链剂的增粘作用进行理论分析 ,推导出扩链剂用量与聚酯特性粘数变化的关系 ,发现反应平衡常数直接影响扩链效率 ;分析了实现扩链的必要条件和扩链剂的最佳投料量 ;利用推导出的理论关系计算出常见扩链剂参与扩链反应的平衡常数。
Polyesteramide PBEA with high molecular weight was synthesized by a chain-extending reaction from the HO-terminated PBEA prepolymer with terephthaloyl bis-caprolactamate(TBC) as chain-extender under reduced pressure in bulk state.
研究了预聚体分子量、扩链剂/预聚体摩尔比、反应温度等因素对扩链反应的影响。
The chain-extending reaction of PBA prepolymers with tricaprolactamyl phosphite(TCP) was carried out under a reduced pressure.
研究了扩链温度、扩链剂用量、预聚体的结构和制备方法等对扩链反应的影响。
The chain-extending reaction of HO-PLA-OH or HO-P(LA/CP)-OH with terephthaloyl-biscaprolactamate(TBCL) was studied.
以对苯二甲酰双己内酰胺(TBCL)为扩链剂,研究了扩链温度、预聚体结构、扩链剂/预聚体配比、扩链时间等对扩链反应的影响。
THE THERMAL OXIDATION OF cis-1,4-POLYBUTADIENE--Ⅳ. THE KINETICS OF EFFECTIVE CHAIN-BRANCHING REACTION IN THE PROCESS OF AUTOCATALYZED OXIDATION
顺-1,4-聚丁二烯的热氧化——Ⅳ.自催化过程中的有效支链反应动力学
Detection of Mycoplasma Genitalium by Polymerase Chain Reaction
聚合酶链反应检测生殖支原体的研究
The application of polymerase chain reaction to the detection of mycoplasma in bovine serum
聚合酶链反应在牛血清支原体检测中的应用
Synthesis and Characterization of Long Chain Branching Polypropylene and Its Properties Study;
基团反应法制备长支链聚丙烯及其性能研究
linear reactant
线型反应物，链状反应物
Detection of Streptomycin Resistant Gene of Mycobacterium Tuberculosis by PCR and Single-Strand Conformation Polymorphism Analysis
聚合酶链反应—单链构象多态性技术鉴别结核分支杆菌链霉素耐药基因
Detection of DNA extracted from Mycobacterium Tuberculosis by TaqMan-PCR technique and its clinical application;
TaqMan聚合酶链反应技术检测结核分支杆菌DNA及其临床应用
Multi-echelon SCM-DDSS Based on Feedback Control;
基于反馈控制的多级供应链分布式决策支持系统
Rheological Behavior and Thermal Properties of Long Chain Branching Polypropylene Prepared by Reactive Extrusion
长链支化聚丙烯的反应挤出制备及其流变和热力学性能研究
Detection of Isoniazid Resistant Gene of Mycobacterium Tuberculosis by PCR and Single-strand Conformation Polymorphism Analysis
聚合酶链反应—单链构象多态性技术鉴别结核分支杆菌异烟肼耐药基因
When termination occurs partly by disproportionation, the prepolymer chains in the product carry branches as well as cross-links.
当终止反应一部分是由歧化所起时，则在产物中预聚物链不但带有交联也带有支链。
Detection of Rifampin Resistant Gene of Mycobacterium Tuberculosis by PCR and Sigle-strand Conformation Polymorphism Analysis;
聚合酶链反应—单链构象多态性技术鉴别结核分支杆菌利福平耐药基因
Diagnostic Value of Fluorescent Quantitative Polymerase Chain Reaction for Mycoplasma Pneumoniae Pneumoniae in Children with Mycoplasma Pneumoniae Pneumonia
肺炎支原体荧光定量聚合酶链反应检测在儿童肺炎支原体肺炎中的诊断意义
controlled nuclear fission chain reaction
受控核裂变链式反应
proton proton chain reactio
质子 质子链式反应
chain reacting pile
链式反应堆原子锅炉
PCR Assay for Diagnosis of Streptococcus Suis Serotype 2
聚合酶链式反应诊断2型猪链球菌
Preparation and Applycation of Silica/Magnetic Supported Branch Phosphine in Catalytic Reaction of Carbon Dioxid
二氧化硅/磁性粒子负载支链有机膦的合成及其在二氧化碳催化反应中的应用