Energy Calculations for Isotactic Polypropylene:  A Contribution To Clarify the β Crystalline Structure

1998 ◽  
Vol 31 (20) ◽  
pp. 6926-6934 ◽  
Author(s):  
Dino R. Ferro ◽  
Stefano V. Meille ◽  
Sergio Brückner
Keyword(s):  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Energy Calculations

scholarly journals Direct correlation between modulus and the crystalline structure in isotactic polypropylene

2015 ◽  
Vol 9 (3) ◽  
pp. 308-320 ◽  
Author(s):  
A. Menyhard ◽  
P. Suba ◽  
Zs. Laszlo ◽  
H. M. Fekete ◽  
A. O. Mester ◽  
...  
Keyword(s):  
Crystalline Structure ◽  
Isotactic Polypropylene

Crystalline structure and remarkably enhanced tensile property of β-isotactic polypropylene via overflow microinjection molding

2019 ◽  
Vol 76 ◽  
pp. 448-454 ◽  
Author(s):  
Zhongzhu Liu ◽  
Xianhu Liu ◽  
Lele Li ◽  
Guoqiang Zheng ◽  
Chuntai Liu ◽  
...  
Keyword(s):  
Tensile Property ◽  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Microinjection Molding

Analysis of crystalline structure and morphology of isotactic polypropylene under the coexistence of organic montmorillonite particles and shear flow

Polymer ◽  
2016 ◽  
Vol 82 ◽  
pp. 274-284 ◽  
Author(s):  
Fan Lei ◽  
Huaning Yu ◽  
Shuo Yang ◽  
Huimin Sun ◽  
Jiang Li ◽  
...  
Keyword(s):  
Shear Flow ◽  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Structure And Morphology ◽  
Organic Montmorillonite

Morphological Characteristics of β-Nucleating Agents Governing the Formation of the Crystalline Structure of Isotactic Polypropylene

2021 ◽  
Author(s):  
Liyuan Liu ◽  
Ying Zhao ◽  
Chunbo Zhang ◽  
Zhiyuan Dong ◽  
Kezhi Wang ◽  
...  
Keyword(s):  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Morphological Characteristics ◽  
Nucleating Agents

Self-Consistent Real Space Free Energy Calculations for Polyethylene and Isotactic Polypropylene Crystals and Interfaces

2014 ◽  
Vol 47 (23) ◽  
pp. 8335-8350 ◽  
Author(s):  
Michael P. Howard ◽  
Scott T. Milner
Keyword(s):  
Free Energy ◽  
Isotactic Polypropylene ◽  
Real Space ◽  
Free Energy Calculations ◽  
Energy Calculations ◽  
Self Consistent

Crystalline Structure Around the Single Vacancy in Silicon: Formation Volume and Stress Effects

1998 ◽  
Vol 532 ◽  
Author(s):  
A. Antonellip ◽  
Efthimios Kaxiras ◽  
D. J. Chadi
Keyword(s):  
Total Energy ◽  
Crystalline Structure ◽  
First Principles ◽  
Relative Concentration ◽  
Atomic Diffusion ◽  
Single Vacancy ◽  
Energy Calculations ◽  
Stress Effects ◽  
Formation Energies

ABSTRACTThe crystalline structure surrounding a single neutral vacancy in silicon is investigated through extensive first-principles total-energy calculations. The results indicate the existence of two distinct distortions of the lattice around the vacancy with essentially the same formation energies at zero pressure, but, however, with different formation volumes. The effect of hydrostatic and biaxial stresses on the relative concentration of each distortion is discussed, suggesting experimental ways to investigate the crystalline structure around the single vacancy and its role as a mediator of atomic diffusion in silicon.

Crystalline Structure of Injection Molded β-Isotactic Polypropylene: Analysis of the Oriented Shear Zone

2013 ◽  
Vol 52 (34) ◽  
pp. 11996-12002 ◽  
Author(s):  
Xianhu Liu ◽  
Kun Dai ◽  
Xiaoqiong Hao ◽  
Guoqiang Zheng ◽  
Chuntai Liu ◽  
...  
Keyword(s):  
Shear Zone ◽  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Injection Molded

scholarly journals Effect of Clay Modification and Preparation Method on Crystalline Structure of Isotactic Polypropylene/Organoclay Nanocomposites

2018 ◽  
Vol 30 (5) ◽  
pp. 1135-1141
Author(s):  
Murefah M. Anazy ◽  
Wafa K. Mekhamer ◽  
Layla A. Al-Juhaiman
Keyword(s):  
Crystalline Structure ◽  
Isotactic Polypropylene ◽  
Preparation Method ◽  
Clay Modification
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