Search Results - "Colwell, John M"
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Microplastic pollution alters forest soil microbiome
Published in Journal of hazardous materials (05-05-2021)“…The impact of microplastic pollution on terrestrial biota is an emerging research area, and this is particularly so for soil biota. In this study, we addressed…”
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Lifetime prediction of biodegradable polymers
Published in Progress in polymer science (01-08-2017)“…The determination of the safe working life of polymer materials is important for their successful use in engineering, medicine and consumer-goods applications…”
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The challenges in lifetime prediction of oxodegradable polyolefin and biodegradable polymer films
Published in Polymer degradation and stability (01-11-2017)“…The service lifetime of polymer films is controlled by the chemical reactions leading to chain scission and the mediating environmental factors. For…”
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Early-stage photodegradation of aromatic poly(urethane-urea) elastomers
Published in Polymer degradation and stability (01-11-2018)“…The photooxidative stability of an aromatic segmented poly(urethane-urea) (PUU) elastomer, stabilised with a range of carbon black fillers, was assessed after…”
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Profluorescent nitroxide sensors for monitoring the natural aging of polymer materials
Published in Polymer degradation and stability (01-04-2020)“…The utility of profluorescent nitroxides (PFNs) as sensitive probes to detect early stage photodegradation in a cyclic olefin copolymer, TOPAS®, during both…”
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Profluorescent nitroxide sensors for monitoring photo-induced degradation in polymer films
Published in Sensors and actuators. B, Chemical (31-03-2017)“…[Display omitted] •Perylenediimide fluorophores linked to nitroxides represent new probes to monitor photo-oxidative degradation in organic polymer…”
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A Highly Sensitive Diketopyrrolopyrrole-Based Ambipolar Transistor for Selective Detection and Discrimination of Xylene Isomers
Published in Advanced materials (Weinheim) (01-06-2016)“…An ambipolar poly(diketopyrrolopyrrole‐terthiophene)‐based field‐effect transistor (FET) sensitively detects xylene isomers at low ppm levels with multiple…”
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The effect of common agrichemicals on the environmental stability of polyethylene films
Published in Polymer degradation and stability (01-10-2015)“…The impact of commonly used agrichemicals (Paraquat, Mancozeb, Chlorpyrifos and Sulfur) on the environmental stability of polyethylene films has been evaluated…”
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A pragmatic calcium-based initiator for the synthesis of polycaprolactone copolymers
Published in Polymer international (01-05-2015)“…Further understanding of the mechanism of the controlled ring‐opening polymerisation of ϵ‐caprolactone in the melt (70‐133 °C) using a simple calcium…”
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Sensitive luminescence techniques to study the early stages of polymer oxidation
Published in Polymer degradation and stability (01-12-2013)“…This paper describes recent developments in the use of chemiluminescence (CL) and profluorescent nitroxides (PFNs) in probing the “induction period” of polymer…”
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Journal Article Conference Proceeding -
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Sensors: A Highly Sensitive Diketopyrrolopyrrole-Based Ambipolar Transistor for Selective Detection and Discrimination of Xylene Isomers (Adv. Mater. 21/2016)
Published in Advanced materials (Weinheim) (01-06-2016)“…An ambipolar organic field‐effect transistor (OFET) based on poly(diketopyrrolopyrrole‐terthiophene) (PDPPHD‐T3) is shown by P. Sonar, H. Haick, and co‐workers…”
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Investigation of polypropylene degradation during melt processing using a profluorescent nitroxide probe: A laboratory-scale study
Published in Polymer degradation and stability (01-04-2011)“…Degradation of polypropylene (PP) during melt processing was studied using a novel profluorescence technique. The profluorescent nitroxide probe,…”
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Profluorescent nitroxides: Thermo-oxidation sensors for stabilised polypropylene
Published in Polymer degradation and stability (01-10-2010)“…The profluorescent nitroxide, 1,1,3,3-tetramethyldibenzo[ e, g]isoindolin-2-yloxyl (TMDBIO) was investigated as a probe for the radical-mediated degradation of…”
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Degradation and stabilization of polyurethane elastomers
Published in Progress in polymer science (01-03-2019)“…[Display omitted] Polyurethane elastomers have a combination of excellent mechanical, physical and chemical properties along with exceptional biocompatibility…”
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Aspirin for Primary Prevention of Cardiovascular Events in People With Diabetes
Published in Journal of the American College of Cardiology (22-06-2010)“…Results of two recent randomized controlled trials of aspirin performed specifically in patients with diabetes raised questions about the efficacy of aspirin…”
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YOUR FRIENDLY NEIGHBORHOOD CINEMATOGRAPHER
Published in American cinematographer (01-02-1973)Get full text
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