{"id":546421,"date":"2023-02-01T18:37:59","date_gmt":"2023-02-01T15:37:59","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/chemically-functionalized-polymer-nanoparticles-reduce-friction-on-steel-surfaces\/"},"modified":"2023-02-01T18:37:59","modified_gmt":"2023-02-01T15:37:59","slug":"chemically-functionalized-polymer-nanoparticles-reduce-friction-on-steel-surfaces","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/chemically-functionalized-polymer-nanoparticles-reduce-friction-on-steel-surfaces\/","title":{"rendered":"#Chemically functionalized polymer nanoparticles reduce friction on steel surfaces"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2d019052530\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2d019052530\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/chemically-functionalized-polymer-nanoparticles-reduce-friction-on-steel-surfaces\/#%E2%80%9CChemically_functionalized_polymer_nanoparticles_reduce_friction_on_steel_surfaces%E2%80%9D\" >&#8220;Chemically functionalized polymer nanoparticles reduce friction on steel surfaces&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CChemically_functionalized_polymer_nanoparticles_reduce_friction_on_steel_surfaces%E2%80%9D\"><\/span>&#8220;Chemically functionalized polymer nanoparticles reduce friction on steel surfaces&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/chemically-functionali.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/chemically-functionali.jpg\" data-sub-html=\"Graphical Abstract. Introduction of epoxy groups into sterically-stabilized diblock copolymer nanoparticles leads to their efficient chemical adsorption onto stainless steel whereas the corresponding non-functional nanoparticles merely undergo physical adsorption. Significantly greater adsorption occurs when the epoxy groups are placed within the steric stabilizer chains, which leads to enhanced lubrication in tribology studies. Credit: &lt;i&gt;Angewandte Chemie International Edition&lt;\/i&gt; (2023). DOI: 10.1002\/anie.202218397\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/chemically-functionali.jpg\" alt=\"Chemically functionalized polymer nanoparticles reduce friction on steel surfaces\" title=\"Graphical Abstract. Introduction of epoxy groups into sterically-stabilized diblock copolymer nanoparticles leads to their efficient chemical adsorption onto stainless steel whereas the corresponding non-functional nanoparticles merely undergo physical adsorption. Significantly greater adsorption occurs when the epoxy groups are placed within the steric stabilizer chains, which leads to enhanced lubrication in tribology studies. Credit:  Angewandte Chemie International Edition  (2023). DOI: 10.1002\/anie.202218397\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Graphical Abstract. Introduction of epoxy groups into sterically-stabilized diblock copolymer nanoparticles leads to their efficient chemical adsorption onto stainless steel whereas the corresponding non-functional nanoparticles merely undergo physical adsorption. Significantly greater adsorption occurs when the epoxy groups are placed within the steric stabilizer chains, which leads to enhanced lubrication in tribology studies. Credit: <i>Angewandte Chemie International Edition<\/i> (2023). DOI: 10.1002\/anie.202218397<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Mineral oil lubricants protect engine parts from wear, and this effect is enhanced by adding polymer nanoparticles to the lubricating oil. A UK team has now discovered that epoxy functionalization of these nanoparticles further promotes friction reduction on metal surfaces.<\/p>\n<section class=\"article-banner first-banner ads-336x280\"><!-- \/4988204\/Phys_Story_InText_Box --><br \/>\n      <\/section>\n<p>As the team reports in the journal <i>Angewandte Chemie<\/i>, nanoparticles containing epoxy groups adhere strongly to stainless steel surfaces, which leads to a significant reduction in friction.<\/p>\n<p>Automotive engines comprising well lubricated parts consume less fuel, produce lower emissions, and suffer less long-term wear. Mineral oil is widely used as a lubricant, and nanoparticles can be directly prepared within this solvent using a technique known as polymerization-induced self-assembly. Coating the surface of the metal components with nanoparticles of a few dozen millionths of a millimeter in size protects them from direct contact.<\/p>\n<p>Csilla Gy\u00f6rgy and Steve Armes at the University of Sheffield (UK) designed &#8220;hairy&#8221; nanoparticles comprising oil-soluble poly(lauryl methacrylate) chains and an oil-insoluble nanoparticulate core. These nanoparticles were made to stick strongly to metal surfaces by introducing epoxy groups into the &#8220;hairs&#8221; by copolymerizing lauryl methacrylate with glycidyl methacrylate, an epoxy-functional monomer.<\/p>\n<p>The team found that the epoxy-bearing nanoparticles reacted with hydroxy groups located at the surface of stainless steel. This reaction led to strong adhesion of the nanoparticles, a phenomenon known as chemical adsorption. Whether chemical adsorption occurred or not depended on the precise location of the epoxy groups. &#8220;To our surprise, introducing a far larger number of epoxy groups into the nanoparticle cores had no beneficial effect,&#8221; explains Armes.<\/p>\n<p>The adsorbed nanoparticles reduced friction significantly, as the Sheffield team discovered when conducting tribological studies in collaboration with scientists at Lubrizol, an engine oil additives company based in the UK. &#8220;Remarkably, the adsorbed nanoparticles remained intact on the stainless steel surface after such experiments, which were conducted at the typical operating temperature of an internal combustion engine,&#8221; Armes adds.<\/p>\n<p>Such epoxy-functionalized nanoparticles could therefore mean a further leap in performance for lubricant additives for next-generation engine oil formulations.<\/p>\n<div class=\"article-main__more p-4\">\n                                                                                        <strong>More information:<\/strong><br \/>\n                                                Csilla Gy\u00f6rgy et al, Enhanced Adsorption of Epoxy\u2010Functional Nanoparticles onto Stainless Steel Significantly Reduces Friction in Tribological Studies, <i>Angewandte Chemie International Edition<\/i> (2023).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1002\/anie.202218397\">DOI: 10.1002\/anie.202218397<\/a><\/p><\/div>\n<div class=\"d-inline-block text-medium mt-4\">\n<p>                                                    Provided by<br \/>\n                                                                                                            Angewandte Chemie<br \/>\n                                                                                                                <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.angewandte.de\/\"><br \/>\n                                                            <svg><use href=\"https:\/\/phys.b-cdn.net\/tmpl\/v6\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                Chemically functionalized polymer nanoparticles reduce friction on steel surfaces (2023, February 1)<br \/>\n                                                retrieved 1 February 2023<br \/>\n                                                from https:\/\/phys.org\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2023-02-chemically-functionalized-polymer-nanoparticles-friction.html<\/p>\n<p>                                             This document is subject to copyright. 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Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/science\/\" target=\"_blank\" rel=\"noopener\">Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/phys.org\/news\/2023-02-chemically-functionalized-polymer-nanoparticles-friction.html\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Chemically functionalized polymer nanoparticles reduce friction on steel surfaces&#8221; Graphical Abstract. Introduction of epoxy groups into sterically-stabilized diblock copolymer nanoparticles leads to their efficient chemical adsorption onto stainless steel whereas the corresponding non-functional nanoparticles merely undergo physical adsorption. Significantly greater adsorption occurs when the epoxy groups are placed within the steric stabilizer chains, which leads&#8230;<\/p>\n","protected":false},"author":1,"featured_media":546422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/chemically-functionali.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-546421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/546421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=546421"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/546421\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/546422"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=546421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=546421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=546421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}