Molecular Structure–Optical Property Relationship of Salicylidene Derivatives: A Study on the First-Order Hyperpolarizability

2020 ◽  
Author(s):  
Marcelo G. Vivas ◽  
Cristina A. Barboza ◽  
Jose C. Germino ◽  
Ruben D. Fonseca ◽  
Daniel L. Silva ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Optical Property ◽  
First Order ◽  
Property Relationship ◽  
Relationship Of

Molecular Structure, Substituent Effect and Physical-Chemistry Property Relationship of Indole Derivatives

2016 ◽  
Vol 5 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Dalal Harkati ◽  
Salah Belaidi ◽  
Aicha Kerassa ◽  
Noureddine Gherraf
Keyword(s):  
Physical Chemistry ◽  
Molecular Structure ◽  
Substituent Effect ◽  
Indole Derivatives ◽  
Property Relationship ◽  
Relationship Of

Structure–property relationship of acceptor-substituted oligothiophenes

Tetrahedron ◽  
2010 ◽  
Vol 66 (45) ◽  
pp. 8729-8733 ◽  
Author(s):  
M.S. Wrackmeyer ◽  
M. Hummert ◽  
H. Hartmann ◽  
M.K. Riede ◽  
K. Leo
Keyword(s):  
Structure Property ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of

scholarly journals Electric properties of olive oil under pressure

2021 ◽  
Author(s):  
L. T. Pawlicki ◽  
R. M. Siegoczyński ◽  
S. Ptasznik ◽  
K. Marszałek
Keyword(s):  
Molecular Structure ◽  
Phase Transition ◽  
Phase Diagram ◽  
Phase Transitions ◽  
Olive Oil ◽  
Material Parameters ◽  
First Order ◽  
Long Time ◽  
Capacitive Reactance ◽  
First Order Phase

AbstractThe main purpose of the experiment was a thermodynamic research with use of the electric methods chosen. The substance examined was olive oil. The paper presents the resistance, capacitive reactance, relative permittivity and resistivity of olive. Compression was applied with two mean velocities up to 450 MPa. The results were shown as functions of pressure and time and depicted on the impedance phase diagram. The three first order phase transitions have been detected. All the changes in material parameters were observed during phase transitions. The material parameters measured turned out to be the much more sensitive long-time phase transition factors than temperature. The values of material parameters and their dependence on pressure and time were compared with the molecular structure, arrangement of molecules and interactions between them. Knowledge about olive oil parameters change with pressure and its phase transitions is very important for olive oil production and conservation.

scholarly journals Model compounds-based study on adsorption and dispersion properties of lignin-based superplasticizer

2021 ◽  
Vol 104 (1) ◽  
pp. 003685042098062
Author(s):  
Shuangping Ma ◽  
Qingjun Ding ◽  
Fen Zhou ◽  
Huaxiong Zhu
Keyword(s):  
Molecular Structure ◽  
Zeta Potential ◽  
Model Compound ◽  
Research Work ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Lignin Model Compound ◽  
Structure Activity ◽  
Lignin Model ◽  
Relationship Of

The chemical modifications of lignin-based superplasticizers have attracted extensive attentions during recent years. The comprehending of the structure-activity relationship of lignin-based superplasticizer is important to promote the modification and application research of lignin resources. However, lignin features complex and variable molecular structure, which is not conducive to study on structure-activity relationship of lignin-based superplasticizer as well as development and application of new lignin-based superplasticizer. However, the related research work can be simplified by selecting small molecular compound with appropriate molecular structure as the lignin model compound. This article intends to study the structure-activity relationship of lignin-based superplasticizer by using dihydroeugenol as the lignin model compound. Through the substitution of lignin by dihydroeugenol during the synthesis process, a model compound lignin-based superplasticizer (DAFS) was synthesized. The adsorption and dispersion properties of this superplasticizer and reference sample (LAFS) were investigated by fluidity test, Zeta-potential measurement, Total organic carbon analysis and others. The results suggest that the adsorption behavior of both DAFS and LAFS conformed to the Langmuir isotherms and Pseudo-second order kinetic. In cement paste, added with 1 g/L of LAFS and DAFS, Zeta potential were reduced from +3.5 to −15.2 mV and −18.7 mV, respectively. The substitution of lignin by dihydroeugenol has no significantly influence on the dispersive property, but differences on rheological properties which need to be optimized in the future. All the tests confirmed that dihydroeugenol is suitable to replace lignin on exploring the structure-activity relationship of lignin-based superplasticizer. This research work provides new insight on model study of lignin-based superplasticizer.

Structure-property relationship of pH-sensitive (PCL)2(PDEA-b-PPEGMA)2micelles: Experiment and DPD simulation

AIChE Journal ◽  
2014 ◽  
Vol 60 (10) ◽  
pp. 3634-3646 ◽  
Author(s):  
Wen Jing Lin ◽  
Shu Yu Nie ◽  
Quan Chen ◽  
Yu Qian ◽  
Xiu Fang Wen ◽  
...  
Keyword(s):  
Ph Sensitive ◽  
Structure Property ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of ◽  
Dpd Simulation
Sign in / Sign up

Export Citation Format

Share Document