Kinetic and microstructural studies of Cp2ZrCl2 and Cp2HfCl2-catalyzed oligomerization of higher α-olefins in mPAO oil base stocks production [PDF]
Polyolefins Journal, 2021 Herein a quenched-flow kinetic technique was applied to calculate the rate constants of 1-hexene and 1-octene oligomerization catalyzed by the Cp2ZrCl2 and Cp2HfCl2/MAO catalyst systems, and subsequently a mechanism for the higher α-olefin ...
Ahad Hanifpour +4 more
doaj +1 more source
Synthesis and Functionalization of α-Olefines (6 and 10 Carbons)/Maleic Anhydride Comb-like Copolymers and Their Application in Silica Nanohybrid and Hydrogel [PDF]
علوم و تکنولوژی پلیمر, 2021 Hypothesis: Poly(α-olefins) have non-polar structures and the development of polarity with different functionalities expands their application. The structure, number and size of the branches of the main chain affect the properties and design of new ...
Mohammad Reza Rostami Darounkola +4 more
doaj +1 more source
A Review of the Performance of Functionalized Waxes as a Compatibilizer and Co-Compatibilizer in Polymer Composites [PDF]
Baspārish, 2021 Demand for the use of polymers in different industries with different properties is increasing. However, pure polymer does not have the ability to create a wide range of desired features.
Mohammad Hadi Karimi +4 more
doaj +1 more source
The Use of Electron Donors to Increase Stereospecificity in Ziegler-Natta Propylene Polymerization [PDF]
علوم و تکنولوژی پلیمر, 2016 Different chemical components in traditional Ziegler–Natta catalytic system include: (1) titanium and vanadium containing compounds, mostly TiCl4, as an active centre, (2) trialkylaluminium-based Lewis acid compounds, especially triethylaluminium, as ...
Farshid Nouri-Ahangarani +2 more
doaj +1 more source
Technologies and Catalysts for the Production of Polyethylene by Slurry Process: Patent Review [PDF]
Baspārish, 2022 For more than sixty years, thousands of patents and articles have been published annually on various manufacturing methods and comparing the properties and performance of manufactured polyethylenes.
hossein bazgir, zahra Zahra Issaabadi
doaj +1 more source
Synthesis of Branched Polymers and Dispersion of Nanosilica and the Effect of Their Interaction on Hydrated Cement Morphology [PDF]
علوم و تکنولوژی پلیمر, 2018 Hypothesis: Dispersion and stabilization of silica nanoparticles are novel approach in the synthesis of hybrid materials in interacting with cement particles.
Mohammad Reza Rostami Darounkola +1 more
doaj +1 more source
Nuclear actin: to polymerize or not to polymerize [PDF]
The Journal of Cell Biology, 2006 The form and function of actin in the nucleus have been enigmatic for over 30 years. Recently actin has been assigned numerous functional roles in the nucleus, but its form remains a mystery. The intricate relationship between actin form and function in the cytoplasm implies that understanding the structural properties of nuclear actin is elementary to
Hofmann, Wilma A., de Lanerolle, Primal
openaire +4 more sources
Storage time effect on dynamic structure of MgCl2.nEtOH adducts in heterogeneous Ziegler-Natta catalysts [PDF]
Polyolefins Journal, 2014 Primary MgCl2.3.3EtOH adduct (PCT1) was prepared by melt quenching method and then submitted into a programmed thermal dealcoholation project using a fluidized bed reactor. During thermal dealcoholation program, different MgCl2.nEtOH support samples with
Najmeh Hadian +3 more
doaj +1 more source
MgCl2 Support Preparation Techniques and Their Effects on Ziegler-Natta Catalysts Performance in Propylene Polymerization [PDF]
علوم و تکنولوژی پلیمر, 2013 A primary adduct of MgCl2.3.3EtOH (A0) was prepared by melt quenching and then it was further dealcoholated by thermal and chemical methods. In thermal dealcoholation, two different support samples with MgCl2.2.7EtOH (A1) and MgCl2.1.8EtOH (A2) formulas ...
Najmeh Hadian +3 more
doaj +1 more source
Polymers, 2019 Advances in nanotechnology have boosted the development of more efficient materials, with emerging sectors (electronics, energy, aerospace, among others) demanding novel materials to fulfill the complex technical requirements of their products [...]
Antunes, Marcelo de Sousa Pais +1 more
openaire +4 more sources