Results 21 to 30 of about 3,152,482 (416)

Synthesis of Isotactic Polybutene-1 with Ziegler-Natta Catalyst [PDF]

open access: yesعلوم 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

Polymerization with freezing [PDF]

open access: yesJournal of Physics: Condensed Matter, 2005
8 pages, 5 ...
Eli Ben-Naim, Paul L. Krapivsky
openaire   +4 more sources

Synthesis and Characterization of ω-Halogenated Poly(dimethyl siloxane) [PDF]

open access: yesعلوم 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
doaj   +1 more source

On consistent gauge fixing conditions in polymerized gravitational systems [PDF]

open access: yesPhys. Rev. D 105, 066023 2022, 2021
For classical gravitational systems the lapse function and the shift vector are usually determined by imposing appropriate gauge fixing conditions and then demanding their preservation with respect to the dynamics generated by a canonical Hamiltonian.
arxiv   +1 more source

Click polymerization [PDF]

open access: yesChemical Society Reviews, 2010
The development of new polymerization reactions is of critical importance to macromolecule science. In this critical review, we summarize the research efforts to incubate alkyne-azide click reactions into a versatile polymerization technique for the synthesis of poly(triazole)s (PTAs) with linear and hyperbranched structures.
Qin, Anjun   +2 more
openaire   +4 more sources

Synthesis and Characterization of Vinyl Acetate and Dibutyl Maleate Copolymers by Reverse Iodine Transfer Radical Polymerization [PDF]

open access: yesعلوم 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]

open access: yesPolyolefins 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

The ring-opening polymerization of D,L-lactide in the melt initiated with tetraphenyltin [PDF]

open access: yes, 1984
Melt polymerization conditions for D,L-lactide initiated with tetraphenyltin were studied with regard to polymer molecular weight and weight distributions.
Berg, J.W.A. van den   +3 more
core   +2 more sources

Polymerization Reactions and Modifications of Polymers by Ionizing Radiation

open access: yesPolymers, 2020
Ionizing radiation has become the most effective way to modify natural and synthetic polymers through crosslinking, degradation, and graft polymerization. This review will include an in-depth analysis of radiation chemistry mechanisms and the kinetics of
Aiysha Ashfaq   +6 more
semanticscholar   +1 more source

مروری بر کامپوزیت‌های پلیمر-سیلسزکیوکسان اولیگومری چندوجهی [PDF]

open access: yesBaspārish, 2017
در سال‌های اخیر، کامپوزیت‌های پلیمری با نانوذرات سیلسزکیوکسان اولیگومری چندوجهی (POSS) بسیار مطالعه شده‌اند. ابعاد نانومتری و نیز امکان وجود گروه‌های عاملی مختلف در ساختار این نانوذرات باعث شده است تا کامپوزیت‌های ساخته شده از آن‌ها، دارای خواص منحصربه ...
منصوره زارع زاده مهریزی   +3 more
doaj   +1 more source

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