Results 21 to 30 of about 66,589 (353)

ABS ONE-STEP® Technology- Major Improvements in Versalis’ Proprietary ABS Continuous Mass Process

open access: yesChemical Engineering Transactions, 2023
Currently, ABS is produced by two different technologies: emulsion and continuous mass. Both technologies can produce materials with peculiar properties, but not always overlapping.
Sara Gavioli   +3 more
doaj   +1 more source

Synthesis of Polyamide 6 by Anionic Polymerization of ε-Caprolactam in an Internal Mixer: Effect of Polymerization Reaction Time [PDF]

open access: yesJournal of Particle Science and Technology, 2015
The main objective of the present work was to synthesis polyamide 6 through anionic polymerization of ε-caprolactam in an internal mixer. The reaction time and the rheological properties of samples during the polymerization were studied. The samples were
Mohammad Mahdi Salehi, Omid Moini
doaj   +1 more source

Structure and properties of star shaped miktoarm isoprene-butadiene-styrene rubber

open access: yesHecheng xiangjiao gongye, 2022
Star shaped miktoarm isoprene-butadiene-styrene rubber with high wet skid resistance and low rolling resistance was prepared by living anionic solution polymerization with n-butyl lithium as initiator, cyclohexane as solvent, sodium dodecylbenzene ...
SHI Gong-chang; DONG Jing; ZHONG Qi-lin; WANG Yong-feng; ZHAO Zhi-chao
doaj   +1 more source

Recent developments in anionic polymerization [PDF]

open access: yes, 1998
The past year witnessed very significant advances in the living anionic polymerization of (meth)acrylate monomers, particularly in hydrocarbons at or below 0°C.
Jérôme, Robert, Tong, Jiangdong
core   +1 more source

Polymerization Initiated by Graphite Intercalation Compounds Revisited: One-Pot Synthesis of Amphiphilic Pentablock Copolymers

open access: yesMacromol, 2022
This study reports the first attempt to employ a potassium–graphite intercalation compound (KC24) as an initiator for the one-pot synthesis of a multi-block copolymer.
Nikolay G. Vladimirov, Ivan Gitsov
doaj   +1 more source

Surface structure of thin asymmetric PS-b-PMMA diblock copolymers investigated by atomic force microscopy [PDF]

open access: yes, 2007
Asymmetric poly(styrene-b-methyl methacrylate) (PS-b-PMMA) diblock copolymers of molecular weight M-n = 29,700g mol(-1) (M-PS = 9300 g mol(-1) M-PMMA = 20,100 g mol(-1), PD = 1.15, chi(PS) = 0.323, chi(PMMA) = 0.677) and M-n = 63,900 g mol(-1) (M-PS = 50,
Hamley, Ian W.   +3 more
core   +1 more source

Radical Polymerization of Alkyl 2-Cyanoacrylates

open access: yesMolecules, 2018
Cyanoacrylates (CAs) are well-known fast-setting adhesives, which are sold as liquids in the presence of stabilizers. Rapid anionic polymerization on exposure to surface moisture is responsible for instant adhesion.
Cormac Duffy   +2 more
doaj   +1 more source

Curing of off-stoichiometric amine–epoxy thermosets [PDF]

open access: yes, 2018
The kinetics of the epoxy–amine polycondensation and the epoxy homopolymerization in off-stoichiometric epoxy/amine formulations with excess of epoxy groups, and in the presence of an anionic initiator have been investigated.
Fernández Francos, Xavier   +5 more
core   +2 more sources

Nanometer-Scale Precision Tuning of 3D Photonic Crystals Made Possible Using Polyelectrolytes with Controlled Short Chain Length and Narrow Polydispersity [PDF]

open access: yes, 2013
Nanometer‐scale tuning of the optical properties of prefabricated photonic crystals is achieved via layer‐by‐layer assembly of polyelectrolytes in the interstitial spaces of the photonic lattice.
Arsenault, André C.   +8 more
core   +2 more sources

Phenomenological characterization of sequential dual-curing of off-stoichiometric "thiol-epoxy" systems: Towards applicability [PDF]

open access: yes, 2017
An extensive characterization of a sequential dual-curing system based on off-stoichiometric “thiol-epoxy” mixtures was carried out using thiol compounds of different functionality.
Belmonte, Alberto   +3 more
core   +1 more source

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