Ambient Temperature Synthesis of Triblock Copolymers via Orthogonal Photochemically and Thermally Induced Modular Conjugation

2011 ◽  
Vol 44 (12) ◽  
pp. 4681-4689 ◽  
Author(s):  
Mathias Glassner ◽  
Kim K. Oehlenschlaeger ◽  
Till Gruendling ◽  
Christopher Barner-Kowollik
Keyword(s):  
Ambient Temperature ◽  
Triblock Copolymers ◽  
Temperature Synthesis ◽  
Thermally Induced

scholarly journals Ambient-Temperature Synthesis of (E)-N-(3-(tert-Butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanimine

Molbank ◽  
10.3390/m1250 ◽  
2021 ◽  
Vol 2021 (3) ◽  
pp. M1250
Author(s):  
Diana Becerra ◽  
Justo Cobo ◽  
Juan-Carlos Castillo
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ambient Temperature ◽  
Magnesium Sulfate ◽  
Elemental Analysis ◽  
Condensation Reaction ◽  
2D Nmr ◽  
2D Nmr Spectroscopy ◽  
Temperature Synthesis ◽  
Tert Butyl

We report the ambient-temperature synthesis of novel (E)-N-(3-(tert-butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanamine 3 in 81% yield by a condensation reaction between 3-(tert-butyl)-1-methyl-1H-pyrazol-5-amine 1 and 2-pyridinecarboxaldehyde 2 in methanol using magnesium sulfate as a drying agent. The N-pyrazolyl imine 3 was full characterized by IR, 1D, and 2D NMR spectroscopy, mass spectrometry, and elemental analysis.

Microfluidic-enabled ambient-temperature synthesis of ultrasmall bimetallic nanoparticles

Nano Research ◽  
2021 ◽  
Author(s):  
Huayi Shi ◽  
Bin Song ◽  
Runzhi Chen ◽  
Qiang Zhang ◽  
Guyue Hu ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Bimetallic Nanoparticles ◽  
Temperature Synthesis

Research on Thermally Induced Deformation of Reinforcing Plate Based on Finite Element Simulation

2012 ◽  
Vol 197 ◽  
pp. 139-143
Author(s):  
Hua Bai ◽  
Yi Du Zhang
Keyword(s):  
Finite Element ◽  
Ambient Temperature ◽  
Finite Element Simulation ◽  
Temperature Change ◽  
Large Scale ◽  
Machining Process ◽  
Reinforcement Structure ◽  
Thermally Induced ◽  
Finite Element Software ◽  
Element Simulation

The change of ambient temperature will cause deformation during the machining process of large-scale aerospace monolithic component. Based on finite element simulation, thermally induced deformation of reinforcing plate is studied in such aspects as reinforcement structure, clamping method and temperature change, and contact function in finite element software is used to simulate the unilateral constraint between workpiece and worktable. The results indicate that reinforcing plate will produce warping deformation due to the change of ambient temperature. Different reinforcement structures and clamping methods have important influence on the deformation positions and degrees, and the deformation is proportional to the temperature change.

Ambient-Temperature Synthesis of Primary Amines via Reductive Amination of Carbonyl Compounds

ACS Catalysis ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 7763-7772 ◽  
Author(s):  
Chao Xie ◽  
Jinliang Song ◽  
Manli Hua ◽  
Yue Hu ◽  
Xin Huang ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compounds ◽  
Reductive Amination ◽  
Primary Amines ◽  
Temperature Synthesis

scholarly journals Modeling temperature profile in mass concrete at early ages of cement hydration

2021 ◽  
Vol 10 (1) ◽  
pp. 64
Author(s):  
Ugwuanyi Donald Chidiebere ◽  
Okafor Fidelis Onyebuchi
Keyword(s):  
Ambient Temperature ◽  
Temperature Profile ◽  
Cement Hydration ◽  
Concrete Block ◽  
Control Measures ◽  
Mass Concrete ◽  
Thermally Induced ◽  
Thermal Cracks ◽  
Concrete Placement ◽  
And Control

Thermally induced cracks due to temperature gradient in mass concrete have adverse effects on its durability and service life. Heat released during the hydration of Portland cement in early age mass concrete can be quite excessive depending on the ambient temperature, cement content of the concrete mix and the size. Finite difference model using Crank Nicholson implicit method was developed based on the two dimensional unsteady state heat conduction. Optimized MATLAB based software was developed for simulation and data visualization. A mass concrete block cast with standard mix ratio and water cement ratio was used to verify the efficacy of the model. Type-K thermocouple and digital thermometer were used to monitor the temperature at time intervals. The temperature profile showed a hotter core and cooler surface except for the initial placement temperature, which exhibited a uniform temperature for all thermocouple locations. Peak temperature values were recorded within the first day of concrete placement. The model successfully predicted the temperature profile of the mass concrete at early ages of cement hydration. With the knowledge of the ambient temperature and the configuration of the mass concrete, the model can reliably predict the temperature profile from which potential for thermal cracks occurrence can be determined to enable suitable proactive preventive and control measures.  

The ambient temperature synthesis and characterization of bile acid polymers

1999 ◽  
Vol 42 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Fabio Zuluaga ◽  
Nora E. Valderruten ◽  
K. B. Wagener
Keyword(s):  
Bile Acid ◽  
Ambient Temperature ◽  
Synthesis And Characterization ◽  
Temperature Synthesis
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