ORALS

SESSION: AdvancedMaterialsTuePM3-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Tue. 28 Nov. 2023 / Room: Heliconia
Session Chairs: Marcos De Campos; Session Monitor: TBA

18:20: [AdvancedMaterialsTuePM314] OS
THEORETICAL INSIGHTS INTO SUBSTITUTION EFFECTS ON THE TWO HETEROCYCLIC THIOPHENE AND SILICON PENTADIENE DITHIENOSILOLES (DTS)
Angyang Yu¹ ; ¹Jilin Agricultural University; Changchun; China. 130118, Changchun, China;
Paper Id: 166 [Abstract]

This work aims to provide theoretical guidance about fabricating high-efficiency electroluminescent materials by means of smart molecular design. Density functional theory is utilized to investigate the geometric structures of the two heterocyclic thiophene and silicon pentadiene dithienosiloles (DTS) derivatives. It is shown that different substituents in the side chain have minor influences on the geometric properties of rigid molecules, whereas the electronic structure and charge transport performance can be tuned effectively. 5-flurophenyl DTS can be regarded as a promising bipolar charge transport material with equilibrated hole and charge transfer performance.  

SESSION: AdvancedMaterialsWedPM3-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Wed. 29 Nov. 2023 / Room: Heliconia
Session Chairs: Fernand Marquis; Session Monitor: TBA

18:20: [AdvancedMaterialsWedPM314] OS
ANTI-MARTENSITIC PHASE TRANSFORMATION OF GLASS WITH ENHANCED ELASTIC PROPERTIES AND SAFETY
Angyang Yu¹ ; ¹Jilin Agricultural University; Changchun; China. 130118, Changchun, China;
Paper Id: 403 [Abstract]

As the function of strain, the second derivatives of free energy to strain form a matrix, of which the eigenvalues are directly related with elastic properties. By adjusting temperature, pressure and shape change properly, those eigenvalues can increase, or become non-zero from the initial zero value, which thus inhibit the occurance of martensitic phase transformation. Meanwhile, elastic constants increase and many elastic properties are strengthened, therefore, the elasticity and safety of glass is improved. In summary, we can expect that the smash danger of glass will be reduced greatly due to this anti-martensitic phase transformation.

SESSION: AdvancedMaterialsFriAM2-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Fri. 1 Dec. 2023 / Room: Heliconia
Session Chairs: Fernand Marquis; Session Monitor: TBA

10:20: [AdvancedMaterialsFriAM205] OS
A UNIFIED FORMULA FOR THE VISCOSITY OF POLYMER SOLUTION
Angyang Yu¹ ; ¹Jilin Agricultural University; Changchun; China. 130118, Changchun, China;
Paper Id: 365 [Abstract]

The concept of viscosity is one of the central themes in rheology. There are many factors, including temperature T, pressure P, shear velocity  , mass of polymer M and branching, which have great impacts on the shear viscosity of polymer solution. Based on the analysis and principle of each factor’s influence on the viscosity of polymer solution, a unified expression for the viscosity of polymer solution is put forward in this work. This new formula has two adjustable parameters (A and B), as well as three polymer constants ( M , n, C M ), where M is mass of polymer, n stands for the non-Newtonian index and C M is threshold mass for chain entanglememt of polymer.