Frontiers in Chemistry, 2022 It has been two decades since biomimetic synthesis of conducting polymers were first reported, however, the systematic investigation of how catalysts influence the properties of the conducting polymers has not been reported yet.
Manuel Eduardo Martínez-Cartagena +7 more
doaj +1 more source
The relationship among changes in microstructure, active sites behavior and properties in the propylene polymerization with a 4th generation Ziegler-Natta catalyst [PDF]
Polyolefins Journal, 2019 Three polypropylene samples (1-3) were synthesized with a 4th generation Ziegler-Natta catalyst in the presence of cyclohexyldimethoxymethylsilane (donor c), dicyclopenthyldimethoxysilane (donor d) and diisopropyldimethoxysilane (donor p), respectively ...
Shokoufeh Hakim +2 more
doaj +1 more source
Cured Poly(ethylene-g-maleic anhydride)/Graphene Nanocomposite: Properties and Characterization [PDF]
Mechanics of Advanced Composite Structures, 2018 Poly(ethylene-g-maleic anhydride) (PEMA)/graphene nanoplatelets (xGn) (PEMA-xGn) composites were prepared by melt dispersion in an internal shear mixer.
Behrouz Jafari +2 more
doaj +1 more source
Effects of FeCl3 doping on the performance of MgCl2/TiCl4/DNPB catalyst in 1-hexene polymerization [PDF]
Polyolefins Journal, 2017 The aim of this study was to examine the effect of catalyst doping on the performance of MgCl2. EtOH/TiCl4 catalyst system. In this regard, a series of undoped as well as FeCl3-doped catalysts was prepared and employed in 1-hexene polymerization.
Farshid Nouri-Ahangarani +3 more
doaj +1 more source
Preparation, Characterization and Permeation Behavior of Poly(methyl acrylate)-Poly(dimethyl siloxane)-Poly(methyl acrylate) Block Copolymer/Poly(vinyl acetate) Blend Membranes [PDF]
علوم و تکنولوژی پلیمر, 2015 Structure of polymeric materials is of the most important factors in determination of the characteristics and properties of the membranes. Various research and developments on polymeric membranes confirm the direct correlation between structure ...
Mohammad Ali Semsarzadeh +1 more
doaj +1 more source
Synthesis of Isotactic Polybutene-1 with Ziegler-Natta Catalyst [PDF]
علوم و تکنولوژی پلیمر, 2022 Hypothesis: Butene-1 is in excess in the polyolefin plants of Iran. Considering the properties of isotactic polybutene-1, including high creep and environmental stress cracking resistances, excellent elastic reversibility and good chemical abrasion ...
shokoufeh Hakim +2 more
doaj +1 more source
Synthesis and Characterization of ω-Halogenated Poly(dimethyl siloxane) [PDF]
علوم و تکنولوژی پلیمر, 2014 Poly(dimethyl siloxane) (PDMS) has received special attention due to its unique properties such as high surface tension, high gas permeability, high hydrophobicity, high chain flexibility at room temperature, good biocompatibility and very low glass ...
Mojtaba Farrokhi, Mahdi Abdollahi
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Synthesis and Characterization of Vinyl Acetate and Dibutyl Maleate Copolymers by Reverse Iodine Transfer Radical Polymerization [PDF]
علوم و تکنولوژی پلیمر, 2015 Homopolymerization and copolymerization of vinyl acetate (VAc) and dibutyl maleate (DBM) were performed in bulk in the presence of iodine as a chain azobis(isobutyronitrile) (AIBN) as an transfer agent generator and 2,2initiator at 70°C.
Mojtaba Farrokhi Farrokhi +1 more
doaj +1 more source
Competitive particle growth at different conditions of oligo-micelle formation in hydro-alcoholic solution of anionic double-chain emulsifier via batch emulsion polymerization of vinyl chloride [PDF]
Polyolefins Journal, 2019 The condition of oligo-micelle formation of sodium di-isodecyl sulfosuccinate (SDIDS) emulsifier in hydroalcoholic solutions is used to study particle formation of vinyl chloride emulsion polymerization in a batch reactor.
Aliasghar Mahdavi Akerdi +1 more
doaj +1 more source
Clinical heterogeneity in a family with flail arm syndrome and review of hnRNPA1‐related spectrum
Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1910-1917, December 2022., 2022 Abstract Objective Flail arm syndrome (FAS) is one of the atypical subtypes of amyotrophic lateral sclerosis (ALS). Mutations in hnRNPA1 encoding heterogeneous nuclear ribonucleoprotein (hnRNP) A1 are a rare genetic cause of ALS. Herein, marked clinical heterogeneity of FAS in a pedigree with a known hnRNPA1 variant was described to raise early ...
Xiaochen Han +5 more
wiley +1 more source