Results 1 to 10 of about 61,010 (276)

Investigations on vinylene carbonate, 2. Copolymerization with N-vinyl-2-pyrrolidone and ethyl vinyl ether [PDF]

open access: yes, 1990
Functional monomers and polymers have received considerable attention in recent years, especially in the biomedical field. In this respect, poly(viny1ene carbonate) is very interesting, because the reactive carbonate groups offer the possibility of ...
Bantjes, Adriaan   +3 more
core   +21 more sources

Synthesis and properties of fluorinated copolymerized polyimide films [PDF]

open access: yesPolímeros, 2020
Two series of fluorinated copolymerized polyimide films with different dianhydride ratios were prepared via the conventional two-step method by using 4,4-oxydianiline(ODA) as the diamine monomer, 4,4'-(hexafluoroisopropylidene) diphthalic anhydride(6FDA),
Chuanhao Cao   +4 more
doaj   +1 more source

Synthesis of (Ind)2ZrCl2 Catalyst for Copolymerization of Ethylene and Propylene: Parameters Effect on Productivity [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2010
Bis(indenyl)zirconium dichloride as a catalyst was synthesized using a modified method at the room temperature. Polymerization of ethylene and copolymerization of ethylene and propylene were carried out by this metallocene catalyst. Ethylene propylene (P/
S. Ahmadjo   +4 more
doaj   +1 more source

Stereoselective Copolymerization of Olefin with Polar Monomers to Access Stereoregular Functionalized Polyolefins

open access: yesOrganic Materials, 2022
Introducing polar functionalities to polyolefins such as polyethylene and polypropylene is highly desirable for improving physical properties of the otherwise non-polar material.
Hongliang Mu, Zhongbao Jian
doaj   +1 more source

Quasi-alternating copolymerization of oxiranes driven by a benign acetate-based catalyst

open access: yesCommunications Chemistry, 2023
Alternating copolymers are distinctly unique in comparison with other copolymers. Herein, an in-depth investigation of the oxyanionic ring-opening copolymerization of propylene oxide (PO) and allyl glycidyl ether (AGE) from benzyl alcohol (BnOH ...
Charlotte Fornaciari   +3 more
doaj   +1 more source

An Investigation of the Organoborane/Lewis Base Pairs on the Copolymerization of Propylene Oxide with Succinic Anhydride

open access: yesMolecules, 2020
The copolymerization of biorenewable succinic anhydride (SA) with propylene oxide (PO) is a promising way to synthesize biodegradable aliphatic polyesters.
Lan-Fang Hu   +3 more
doaj   +1 more source

Mathematical modeling the effect of catalyst initial shape and the crack pattern in olefin copolymerization [PDF]

open access: yesPolyolefins Journal, 2015
A two-dimensional (2D) single particle model for the copolymerization of propylene-ethylene with heterogeneous Ziegler-Natta catalyst is developed. The model accounts for the effects of the initial shape of the catalyst and carck/ pore patterns on the ...
Marzieh Nouri   +3 more
doaj   +1 more source

Regioselective Photooxidation of Citronellol: A Way to Monomers for Functionalized Bio-Polyesters

open access: yesFrontiers in Chemistry, 2020
Dye-sensitized photooxygenation reaction of bio-based double bond-containing substrates is proposed as sustainable functionalization of terpenes and terpenoids to transform them into polyoxygenated compounds to be employed for the synthesis of new bio ...
Deianira Lanteri   +8 more
doaj   +1 more source

Renewable Polymers Derived from Limonene

open access: yesChemEngineering, 2023
Renewable natural and synthetic basic substances can be used to produce biodegradable polymers. Several methods of the polymerization of terpene limonene have been evaluated.
Roman Aleksandrovich Lyubushkin   +5 more
doaj   +1 more source

Tuning the critical solution temperature of polymers by copolymerization [PDF]

open access: yes, 2015
We study statistical copolymerization effects on the upper critical solution temperature (CST) of generic homopolymers by means of coarse-grained Langevin dynamics computer simulations and mean-field theory.
Chudoba, Richard   +3 more
core   +3 more sources

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