With the collaboration of Iran Polymer Society
Structure and property relationship
Electrical properties of UHMWPE/graphite nanoplates composites obtained by in-situ polymerization method

Igor Chmutin; Ludmila Novokshonova; Petr Brevnov; Guzel Yukhayeva; Natalia Ryvkina

Volume 4, Issue 1 , January 2017, Pages 1-12

https://doi.org/10.22063/poj.2016.1384

Abstract
  There are described nanocomposites based on ultra high molecular weight polyethylene and graphite nanoplates prepared by in-situ polymerization method. It is carried out a comprehensive study of electric properties of these composites, including direct current (dc) and alternating current (ac) properties. ...  Read More

Polyolefin degradation
Anti-fouling behaviors of surface functionalized high density polyethylene membrane in microfiltration of bovine serum albumin protein

Milad Fonouni; Reza Yegani; Sattar Anarjani; Akram Tavakoli

Volume 4, Issue 1 , January 2017, Pages 13-26

https://doi.org/10.22063/poj.2016.1343

Abstract
  An essential characteristic for high performance inherently hydrophobic membranes such as microporous high density polyethylene (HDPE) membranes is to have a hydrophilic surface. In this project, wet chemical functionalization as a facile and effective method was developed to give a hydrophilic property ...  Read More

Simulation & Modeling
Two novel methods for synthesizing poly (propylene fumarate): Technical aspects and role of vacuum and N2 purging effects

Sara Shahbazi; Yaser Jafari; Fathollah Moztarzadeh; Gity Mir Mohamad Sadeghi

Volume 4, Issue 1 , January 2017, Pages 27-41

https://doi.org/10.22063/poj.2016.1354

Abstract
  Poly (propylene fumarate) (PPF), a linear unsaturated polyester consisting of alternating propylene glycol and fumaric acid units, can be cured in vivo to fill the skeletal defects with minimal surgical intervention. Many different methods have been reported for synthesizing PPF, but none of them gives ...  Read More

Structure and property relationship
Electrical and electromagnetic properties of isolated carbon nanotubes and carbon nanotube-based composites

Alireza Nikfarjam; Roham Rafiee; Mostafa Taheri

Volume 4, Issue 1 , January 2017, Pages 43-68

https://doi.org/10.22063/poj.2016.1371

Abstract
  Isolated carbon nanotubes (CNTs), CNT films and CNT-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. The main objective of this article is to provide a comprehensive review on the investigations performed in the ...  Read More

Catalysis
Preparation of high performance PP/ reduced graphene oxide nanocomposites through a combined in situ polymerization and masterbatch method

He-Xin Zhang; Seung-Ri Lee; Dong-Ho Lee; Xue-Quan Zhang; Keun-Byoung Yoon

Volume 4, Issue 1 , January 2017, Pages 69-77

https://doi.org/10.22063/poj.2016.1375

Abstract
  Despite the great potential of graphene as a nanofiller, achieving homogeneous dispersion remains the key challenge for effectively reinforcing polyolefin (such as polyethylene (PE) and polypropylene (PP)) nanocomposites. Therefore, in this research, we report a facile combined in situ polymerization ...  Read More

Polyolefin degradation
Evaluation of effects of thymolphthalein on thermooxidative stability of polypropylene

Nikoo Karami; Reza Jahanmardi

Volume 4, Issue 1 , January 2017, Pages 79-86

https://doi.org/10.22063/poj.2016.1394

Abstract
  The present work is aimed to find a new and efficient type of antioxidants for polypropylene. Hence, effects of 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one, generally known as thymolphthalein, on thermo-oxidative stability of polypropylene in solid and melt states were evaluated ...  Read More

Catalysis
Ziegler-Natta catalysts for propylene polymerization – Interaction of an external donor with the catalyst

Valentina Nikolaevna Panchenko; Ludmila Viktorovna Vorontsova; Vladimir Aleksandrovich Zakharov

Volume 4, Issue 1 , January 2017, Pages 87-97

https://doi.org/10.22063/poj.2016.1385

Abstract
  The interaction of the external donor (propyltrimethoxysilane - PTMS) with titanium-magnesium catalysts (TMCs) containing dibutylphthalate (DBP) as internal donor, which were prepared in different ways, was studied by chemical analysis and infrared diffuse reflectance spectroscopy (DRIFTS). The chemical ...  Read More

Polymer processing
Theoretical models for prediction of mechanical behaviour of the PP/EPDM nanocomposites fabricated by friction stir process

Amir Mostafapour; Ghasem Naderi; Mohammad Reza Nakhaei

Volume 4, Issue 1 , January 2017, Pages 99-109

https://doi.org/10.22063/poj.2016.1370

Abstract
  In this study, thermoplastic polyolefin elastomeric (TPO) nanocomposites were fabricated by friction stir processing. The effect of different pin geometries on clay dispersion and mechanical properties of the TPO nanocomposite reinforced with 3% wt nanoclay has been first investigated. The optimum pin ...  Read More

Catalysis
Effect of the synthesis conditions of titanium-magnesium catalysts on the composition, structure and performance in propylene polymerization

Natalya N. Chumachenko; Vladimir A. Zakharov; Sergey A. Sergeev; Svetlana V. Cherepanova

Volume 4, Issue 1 , January 2017, Pages 111-122

https://doi.org/10.22063/poj.2016.1399

Abstract
  Supported catalysts synthesized via the interaction of Mg(OEt)2 with TiCl4 in the presence or absence of an internal stereoregulating donor (di-n-butyl phthalate), with different solvents (chlorobenzene, n-undecane, n-heptane) at different titanation temperatures have been studied by a set of physicochemical ...  Read More

Catalysis
Polymerization of sterically hindered a-olefins with single-site group 4 metal catalyst precursors

Gabriel Theurkauff; Katty Den Dauw; Olivier Miserque; Aurélien Vantomme; Jean-Michel Brusson; Jean-François Carpentier; Evgeny Kirillov

Volume 4, Issue 1 , January 2017, Pages 123-136

https://doi.org/10.22063/poj.2016.1395

Abstract
  A variety of group 4 metal catalytic systems (C2-symmetric {EBTHI}-, {SBI}-type zirconocene complexes (C2-1–4); C1-symmetric (C1-5–8) and Cs-symmetric (Cs-9) {Cp/Flu}-type zirconocene complexes; Cp*2ZrCl2 (Cp* 2-10)), half-metallocene complexes (CpTiCl3, HM-11), constrained-geometry (CGC-12) ...  Read More

Polymer processing
Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer

Mohammadreza Rahnama; Abdulrasoul Oromiehie; Shervin Ahmadi; Ismaeil Ghasemi

Volume 4, Issue 1 , January 2017, Pages 137-147

https://doi.org/10.22063/poj.2016.1398

Abstract
  In this research, high oxygen-barrier films were organized based on low-density polyethylene (LDPE)/ ethylene vinyl alcohol (EVOH)/ polyethylene-grafted maleic anhydride (LDPE-g-MA) compatibilizer. The effects of 10–30 wt. % EVOH and 0–10 wt. % LDPE-g-MA loadings on the properties of final ...  Read More