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。
On establishment of fission neutron density formula in process of chain reaction;
核裂变链式反应过程中裂变中子密度计算公式建立的研究
Based on atmospheric chemistry research, a method was presented to simultaneously oxidize NO and SO2 in flue gas by chain reactions.
基于大气化学的研究成果,本文提出了利用链式反应同步氧化烟气中NO和SO2的设想。
During the 30s and 40s of the last century atomic physicists discovered the fission of uranium nuclei bombarded by neutrons and realized the first self-sustaining controlled fission chain reaction, which ushered in the atomic age.
20世纪三四十年代,原子物理学家们发现中子轰击铀原子核的裂变现象并首次实现可控裂变链式反应,把世界带进了原子能时代。
An improved dry flue gas desulfurization technique through radical chain reactions;
基于自由基链式反应改进干法烟气脱硫技术的方法
SERUM HBV-DNA Detected with Polymerase Chain Reaction
应用聚合酶链反应(PCR)检测血清HBV-DNA
Detection of Salmonella by Polymerase Chain Reaction
应用聚合酶链反应技术检测沙门氏菌
Study on Extending Chain Reaction of R-PET in Reactive Extruded Processing
反应挤出过程中回收PET扩链反应的研究
Detection of Clamydia trachomatis with ligase chain reaction.
连接酶链反应检测结膜沙眼衣原体
Analysis of detection of gonorrhea by polymerase chain reaction
聚合酶链反应检测淋菌的结果分析
Detection of Mycoplasma Genitalium by Polymerase Chain Reaction
聚合酶链反应检测生殖支原体的研究
Measurement of Sal monella with Polymerase Chain Reaction in Blood
聚合酶链反应检测血液中的沙门菌
linear reactant
线型反应物，链状反应物
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
backbone wire model
主链金属丝模型[主要反应主链走向的实体模型]
The Study on the Chain Extension of PET during Reactive Extrusion and the Synthesis of Chain Extender;
PET的反应挤出扩链及扩链剂的合成研究
Preparation of Single-Stranded DNA Template for Pyrosequencing by Linear-after-the-Exponential-Polymerase Chain Reaction
指数线性聚合酶链式反应法制备焦磷酸测序反应的单链模板
Chain-reacting piles, or atomic-power reactors, contain a great quantity of uranium
链式反应堆，即原子反应堆含有大量的铀。
Fully inserted into the reactor, the control rods halt the chain reaction.
完全插入反应堆中，控制棒使链式反应暂时停止。
Research on Elimination and Hydrolysis of α-chloro Long Chain Fatty Acid;
α-氯代长链脂肪酸的消除反应及水解反应研究