{"id":164666,"date":"2025-06-26T07:20:00","date_gmt":"2025-06-26T05:20:00","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=164666"},"modified":"2025-06-23T11:05:15","modified_gmt":"2025-06-23T09:05:15","slug":"tyrosine-derived-polybenzoxazine-coatings-offer-eco-friendly-marine-anti-fouling-solution-2","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/tyrosine-derived-polybenzoxazine-coatings-offer-eco-friendly-marine-anti-fouling-solution-2\/","title":{"rendered":"Tyrosine-derived polybenzoxazine coatings offer eco-friendly marine anti-fouling solution\u00a0"},"content":{"rendered":"\n\n\n

To combat the environmental drawbacks of conventional marine anti-fouling coatings, researchers have synthesised a novel class of bio-based polybenzoxazine (PBOZ) coatings derived from the amino acid L-tyrosine. Published in Progress in Organic Coatings<\/em><\/a> (Volume 200, March 2025), the study presents a coating system with intrinsic antibacterial properties and excellent fouling-release performance, achieved without relying on biocidal additives.<\/p>\n\n\n

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\"Smooth
Smooth and antibacterial: L-tyrosine-based polybenzoxazine coatings provide effective fouling-release properties without toxic leaching. \u00a9 Pb – stock.adobe.com<\/figcaption><\/figure><\/div>\n\n\n

The coatings were prepared by ring-opening polymerisation of branched benzoxazine monomers synthesised from polyether amides and primary amines with varying structures. The formulation containing 1,12-dodecylenediamine (THB-PBOZs-DDA) proved especially promising. It exhibited a high crosslink density (gel content: 86\u202f\u00b1\u202f2.71\u202f%) and strong mechanical properties, including a tensile strength of 3.3\u202fMPa and an elastic modulus of 32.1\u202fMPa.<\/p>\n\n\n\n

Reading tip: Functional Coatings<\/h3>\n\n\n\n

The \u201cEC Tech Report Functional Coatings\u201d<\/a> gives you an up-to-date bundle on automotive coatings with articles, videos and other handpicked content. In addition to technical articles about the latest technical developments, this all-in-one multi-media pack is rounded off with valuable market insights and important fundamentals about automotive coatings formulation.<\/p>\n\n\n\n

Antibacterial action and fouling-release synergy<\/h3>\n\n\n\n

THB-PBOZs-DDA demonstrated excellent substrate adhesion (5.43\u202fMPa) and a smooth, hydrophobic surface with a water contact angle of 133\u00b0. Its antibacterial activity further enhanced its fouling-release capability, making it an effective non-toxic alternative to traditional coatings. The coating resists microbial colonisation while maintaining surface integrity and mechanical robustness.<\/p>\n\n\n\n

This bio-based anti-fouling solution stands out through its combination of mechanical durability, inherent antibacterial performance, and environmental safety – offering a compelling candidate for next-generation marine coatings.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Source: Yuan, X. et al. Tyrosine-based branched polybenzoxazines with antibacterial and surface fouling released performances for marine anti-fouling coatings<\/a><\/em>, Progress in Organic Coatings<\/em>, Volume 200, March 2025, 108978.<\/p>\n","protected":false},"excerpt":{"rendered":"

To combat the environmental drawbacks of conventional marine anti-fouling coatings, researchers have synthesised a novel class of bio-based polybenzoxazine (PBOZ) coatings derived from the amino acid L-tyrosine. Published in Progress in Organic Coatings (Volume 200, March 2025), the study presents a coating system with intrinsic antibacterial properties and excellent fouling-release performance, achieved without relying on biocidal additives. […]<\/p>\n","protected":false},"author":59,"featured_media":164691,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","nova_meta_subtitle":"New study presents a coating system with intrinsic antibacterial properties and excellent fouling-release performance, achieved without relying on biocidal additives","footnotes":""},"categories":[5572],"tags":[12365,7059,23548,11270],"supplier":[26414],"class_list":["post-164666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bio-based","tag-additives","tag-automotive","tag-biocoatings","tag-biodegradability","supplier-harbin-engineering-university"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/164666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=164666"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/164666\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media\/164691"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=164666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=164666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=164666"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=164666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}