Organic polymers classification using QCL spectroscopy

Author(s):  
Mauro Pazmino-Betancourth ◽  
Victor Ochoa-Gutierrez ◽  
David Childs
Keyword(s):  
1983 ◽  
Vol 44 (8) ◽  
pp. 953-955 ◽  
Author(s):  
C. Aslangul ◽  
D. Saint-James

1998 ◽  
Vol 29 (1-3) ◽  
pp. 140-145
Author(s):  
R. Sh. Vainberg ◽  
S. A. Bogdanov ◽  
N. D. Butskii

2021 ◽  
Author(s):  
Daniel P. Engelhart ◽  
Vanessa J. Murray ◽  
Elena A. Plis ◽  
Karin Fulford ◽  
Dale C. Ferguson ◽  
...  

2017 ◽  
Author(s):  
Mohammad Atif Faiz Afzal ◽  
Chong Cheng ◽  
Johannes Hachmann

Organic materials with a high index of refraction (RI) are attracting considerable interest due to their potential application in optic and optoelectronic devices. However, most of these applications require an RI value of 1.7 or larger, while typical carbon-based polymers only exhibit values in the range of 1.3–1.5. This paper introduces an efficient computational protocol for the accurate prediction of RI values in polymers to facilitate in silico studies that an guide the discovery and design of next-generation high-RI materials. Our protocol is based on the Lorentz-Lorenz equation and is parametrized by the polarizability and number density values of a given candidate compound. In the proposed scheme, we compute the former using first-principles electronic structure theory and the latter using an approximation based on van der Waals volumes. The critical parameter in the number density approximation is the packing fraction of the bulk polymer, for which we have devised a machine learning model. We demonstrate the performance of the proposed RI protocol by testing its predictions against the experimentally known RI values of 112 optical polymers. Our approach to combine first-principles and data modeling emerges as both a successful and highly economical path to determining the RI values for a wide range of organic polymers.


2000 ◽  
Author(s):  
S. Phillips ◽  
R. Gonzales ◽  
K. Chaffee ◽  
T. Haddad ◽  
G. Hoflund

Author(s):  
Pramod Kumar ◽  
Animesh Das ◽  
Biplab Maji

The phosphorous-containing porous organic polymer is a trending material for the synthesis of heterogeneous catalysts. Decades of investigations have established phosphines as versatile ligands in homogeneous catalysis. Recently, phosphine-based heterogeneous...


2021 ◽  
Author(s):  
Yanpei Song ◽  
Pui Ching Lan ◽  
Kyle Martin ◽  
Shengqian Ma

Conjugated microporous polymers (CMPs) are an emerging class of porous organic polymers that combine -conjugated skeletons with permanent micropores. Since their first report in 2007, the enormous exploration of linkage...


2021 ◽  
Vol 133 (6) ◽  
Author(s):  
Xiuxiu Guo ◽  
En Lin ◽  
Jia Gao ◽  
Tianhui Mao ◽  
Dong Yan ◽  
...  

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