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Antibacterial poly(ethylene terephthalate) surfaces obtained from thymyl methacrylate polymerization

24-Apr-2015 | Sophie Bedel, Bénédicte Lepoittevin, Ludovic Costa, Olivier Leroy, Diana Dragoe, Jérôme Bruzaud, Jean‐Marie Herry, M ..., Journal of Polymer Science Part A: Polymer Chemistry, 2015

ABSTRACT Thymol, an antibacterial agent was used for the preparation of a methacrylic monomer. The conventional and atom transfer radical (ATRP) polymerizations of this monomer were studied using different conditions. Then, the functionalization of poly(ethylene terephthalate) (PET) films by ...

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Interactions between nanoparticles and lung surfactant investigated by matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry

24-Apr-2015 | Tashi Chhoden, Per Axel Clausen, Søren T. Larsen, Asger W. Nørgaard, Frants R. Lauritsen, Rapid Communications in Mass Spectrometry, 2015

Rationale Inhaled nanoparticles may cause adverse effects due to inactivation of lung surfactants. We have studied how three different nanoparticles interact with dipalmitoyl‐phosphatidylcholine (DPPC), the main component in lung surfactant. Methods DPPC in solution was mixed with a ...

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Preparation and aqueous solution behavior of a ph‐responsive branched copolymer based on 2‐(diethylamino)ethyl methacrylate

22-Apr-2015 | Lei Wang, Wen Huang, Shijie Wang, Yuezhi Cui, Pengfei Yang, Xiaodeng Yang, Jonathan V. M. Weaver, Journal of Applied Polymer Science, 2015

ABSTRACT pH‐Responsive amphiphilic branched copolymers were prepared from poly(ethylene glycol) methyl ether methacrylate (PEGMA), 2‐(diethylamino)ethyl methacrylate (DEAEMA), 2‐(tert‐butylamino)ethyl methacrylate (tBAEMA), and ethylene glycol dimethacrylate (EGDMA) utilizing a thiol‐modified ...

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Oriented polyvinyl alcohol films using short cellulose nanofibrils as a reinforcement

21-Apr-2015 | Jun Peng, Thomas Ellingham, Ronald Sabo, Craig M. Clemons, Lih‐Sheng Turng, Journal of Applied Polymer Science, 2015

ABSTRACT Short cellulose nanofibrils (SCNF) were investigated as a new kind of reinforcement for polyvinyl alcohol (PVA) films. SCNF were mechanically isolated from hardwood pulp after enzymatic pretreatment. Various concentrations of SCNF were added to an aqueous PVA solution, which were cast ...

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Exploration on tribological behaviours of perrhenates as potential lubricating oil additive during a wide temperature range

21-Apr-2015 | Junhai Wang, Yang Liu, Deli Duan, Shu Li, Tribotest, 2015

Abstract The perrhenates of calcium, copper and lead used as oil additive were synthesised by using the aqueous solution method. The tribological properties of these perrhenates were examined by using a ball‐on‐disc tribotester during a wide temperature range and a four‐ball testing machine at ...

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A numerical solution of the pair equation of a model two‐electron diatomic system

21-Apr-2015 | Khaled Bodoor, Jacek Kobus, John Morrison, International Journal of Quantum Chemistry, 2015

It has been well‐documented that about 90% of the total correlation energy of atomic systems can be obtained by solving so‐called pair equations. For atoms, this approach requires solving partial differential equations (PDE) in two variables. In case of a diatomic molecule, we face devising a ...

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Hyperbranched polytriazine grafted reduced graphene oxide and its application

18-Apr-2015 | Chao Liu, Hongxia Yan, Lingxia Yuan, Zhengyan Chen, Mengmeng Zhang, Journal of Polymer Science Part A: Polymer Chemistry, 2015

ABSTRACT In this article, cyanuric chloride (CC) and hexamethylenediamine (HMD) as raw material, the grafting of hyperbranched polytriazine onto reduced graphene oxide surface (HBP‐RGO) was achieved by the repeated nucleophilic substitution between chlorine groups of CC and amino groups of ...

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Surface modification of monolithic PolyHIPE Polymers for anionic functionality and their ion exchange behavior

18-Apr-2015 | Necla Barlık, Bülent Keskinler, M. Muhtar Kocakerim, Galip Akay, Journal of Applied Polymer Science, 2015

ABSTRACT Monolithic PolyHIPE Polymer (PHP), being a highly porous, low density, open cellular material was produced by polymerization of a high internal phase emulsion (HIPE) in which the polymerizable continuous phase consisted of monomers, styrene (STY), and divinyl benzene (DVB). The inner ...

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Mass spectrometric based approaches in urine metabolomics and biomarker discovery

16-Apr-2015 | Mona M. Khamis, Darryl J. Adamko, Anas El‐Aneed, Mass Spectrometry Reviews, 2015

Urine metabolomics has recently emerged as a prominent field for the discovery of non‐invasive biomarkers that can detect subtle metabolic discrepancies in response to a specific disease or therapeutic intervention. Urine, compared to other biofluids, is characterized by its ease of collection, ...

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Development of a nanocomposite of polypropylene with biocide action from silver nanoparticles

16-Apr-2015 | Washington Luiz Oliani, Duclerc Fernandes Parra, Luis Filipe Carvalho Pedroso Lima, Nilton Lincopan, Ademar Benevolo ..., Journal of Applied Polymer Science, 2015

ABSTRACT This article presents the production of films based on blends of polypropylene (PP) and modified PP with the insertion of silver nanoparticles (AgNPs) produced to generate a bactericidal effect. The 50/50 blend of PP and PP modified by irradiation in acetylene at a dose of 12.5 kGy ...

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