Studies of 4,4′-diphenylmethane diisocyanate (MDI)/1,4-butanediol (BDO) based TPUs by in situ and moving-window two-dimensional correlation infrared spectroscopy: Understanding of multiple DSC endotherms from intermolecular interactions and motions level

Polymer ◽  
2012 ◽  
Vol 53 (23) ◽  
pp. 5423-5435 ◽  
Author(s):  
Cong Li ◽  
Jiwen Liu ◽  
Junjun Li ◽  
Fei Shen ◽  
Qishan Huang ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Intermolecular Interactions ◽  
Moving Window ◽  
Diphenylmethane Diisocyanate ◽  
Two Dimensional

A method for real time detection of reaction endpoints using a moving window t-test of in situ time course data

2020 ◽  
Vol 5 (9) ◽  
pp. 1642-1646
Author(s):  
Elyse N. T. DiMaso ◽  
Robert W. Bondi ◽  
John Guo ◽  
Alexander G. O'Brien
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Real Time ◽  
Time Course ◽  
Test Method ◽  
Moving Window ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Time Course Data

In-line Fourier transform mid-infrared spectroscopy (FTIR) in combination with a moving window t-test method was used to determine the endpoint of a reaction with a highly inconsistent rate.

Two-dimensional sublimation of CO2 on NaCl(100) with molecular reorientation as revealed by polarization infrared spectroscopy

1994 ◽  
Vol 72 (3) ◽  
pp. 795-799 ◽  
Author(s):  
J. Heidberg ◽  
E. Kampshoff ◽  
R. Kühnemuth ◽  
O. Schönekäs
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Single Crystal ◽  
Temperature Dependence ◽  
Lattice Gas ◽  
Two Dimensional ◽  
Molecular Reorientation ◽  
Spreading Pressure ◽  
The Ideal

Two-dimensional sublimation of CO2 on NaCl(100), prepared by cleaving a single crystal in situ under ultrahigh vacuum, was observed by polarization Fourier transform infrared spectroscopy. At the transition pressure pt(T) &([a-z]+); 1 × 10−10 mbar in the temperature range 45 ≤ T/K ≤ 75 the 2D solid and the ideal 2D lattice gas coexist in a 2D thermodynamic equilibrium. The temperature dependence of the spreading pressure π(T) of the coexisting 2D lattice gas yields the enthalpy of the 2D sublimation [Formula: see text] In the two-dimensional sublimation reorientation of the CO2 molecules takes place; both the polar and the azimuthal molecular angles change.

Molecular Chain Movements and Transitions of SEBS above Room Temperature Studied by Moving-Window Two-Dimensional Correlation Infrared Spectroscopy

2007 ◽  
Vol 40 (25) ◽  
pp. 9009-9017 ◽  
Author(s):  
Tao Zhou ◽  
Aiming Zhang ◽  
Changsheng Zhao ◽  
Hongwen Liang ◽  
Zhiyong Wu ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Room Temperature ◽  
Molecular Chain ◽  
Moving Window ◽  
Two Dimensional
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