Results 21 to 30 of about 2,946 (246)

Propene bulk polymerization kinetics: Role of prepolymerization and hydrogen

open access: yesAIChE Journal, 2003
AbstractAn experimental setup for the polymerization of liquid propylene was used to carry out main polymerizations with and without a prepolymerization step. Two types of prepolymerization are introduced: at a constant temperature and at rapidly increasing reactor temperatures.
Pater, J.T.M.   +2 more
openaire   +3 more sources

Polymerization of Ethylene by the Silaned SiO2 -Mg(iBu)2-TiCl4-Al(iBu)3 Catalyst System [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 1992
The polymerization of ethylene was conducted over the Silaned Si02 / Mg(iBu)2 I TiCl I Al (mu)3 and over the Stauffer AA type (1.1)/Al (iBu)3 catalyst systems at 60° C.
M.A. Abu-Eid, P.J. Tait
doaj   +1 more source

Preparation of organosilicone modified polyurethane and its effect on the physical properties of organic-inorganic glass laminates

open access: yesJournal of Aeronautical Materials, 2021
In this paper, organosilicone-modified polyurethane was synthesized by the prepolymerization method by using polypropylene glycol and isophorone diisocyanate as the synthetic monomers, and γ-aminopropyltriethoxysilane (KH550) as the silicone source.
LI Yingde, LU Jinshan, ZHONG Fan
doaj   +1 more source

Plasmon‐Induced Photopolymerization of Molecularly Imprinted Polymers for Nanosensor Applications

open access: yesAdvanced Materials Interfaces, 2023
A new simple, fast, and versatile method is developed to functionalize gold nanoparticles (AuNPs) via nanoscale layers of molecularly imprinted polymers (MIPs).
Amine Khitous   +4 more
doaj   +1 more source

Development of Molecularly Imprinted Polymer in Porous Film Format for Binding of Phenol and Alkylphenols from Water [PDF]

open access: yes, 2014
Molecularly imprinted polymers (MIPs) were fabricated on glass slides with a “sandwich” technique giving ~20 µm thick films. Methanol/water as a solvent, and polyethyleneglycol and polyvinylacetate as solvent modifiers, were used to give a porous ...
Bottaro, Christina S.   +1 more
core   +2 more sources

Continuous Differential Microemulsion Polymerization to Prepare Nanosized Polymer Latices in Microreactors

open access: yesAdvances in Polymer Technology, 2021
Microreactors are a promising platform for continuous synthesis of polymer latices when combined with emulsion polymerization. However, this application has long been haunted by fouling and clogging problems.
Min Qiu   +3 more
doaj   +1 more source

Copolymers of PBT and nylon 4T [PDF]

open access: yes, 1993
Polybutylene terephthalate-nylon 4T copolymers (PBT-PA 4T) are synthesized from the diamide of diaminobutane and dimethyl terephthalate (DMT) with butane diol and more DMT in a concentration range of up to 50% PA 4T.
Gaymans, R.J.   +2 more
core   +2 more sources

Modelagem do Processo de Fragmentação de Catalisadores Suportados Durante a Pré-polimerização de Olefinas Modeling of Catalyst Fragmentation During Olefin Pre-polymerizations

open access: yesPolímeros, 2002
Uma metodologia é proposta para descrever a morfologia das partículas de polímero que são obtidas durante os momentos iniciais da polimerização de olefinas via catálise heterogênea.
Douglas M. Merquior   +2 more
doaj   +1 more source

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