{"id":163669,"date":"2025-05-30T07:20:00","date_gmt":"2025-05-30T05:20:00","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=163669"},"modified":"2025-05-26T13:16:28","modified_gmt":"2025-05-26T11:16:28","slug":"tyrosine-derived-polybenzoxazine-coatings-offer-eco-friendly-marine-anti-fouling-solution","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/tyrosine-derived-polybenzoxazine-coatings-offer-eco-friendly-marine-anti-fouling-solution\/","title":{"rendered":"Tyrosine-derived polybenzoxazine coatings offer eco-friendly marine anti-fouling solution"},"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\u00a0Progress in Organic Coatings<\/em>\u00a0(Volume 200, March 2025<\/a>), 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

\n
\"Smooth
Smooth and antibacterial: L-tyrosine-based polybenzoxazine coatings provide effective fouling-release properties without toxic leaching.\u00a0
\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

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\u2014offering a compelling candidate for next-generation marine coatings.<\/p>\n\n\n\n

Source<\/h3>\n\n\n\n

Yuan, X. et al.\u00a0Tyrosine-based branched polybenzoxazines with antibacterial and surface fouling released performances for marine anti-fouling coatings<\/a><\/em>,\u00a0Progress 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\u00a0Progress in Organic Coatings\u00a0(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":163693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","nova_meta_subtitle":"A newly developed bio-based polybenzoxazine coating made from L-tyrosine combines inherent antibacterial activity with low surface energy, offering an environmentally friendly approach to marine antifouling","footnotes":""},"categories":[5572],"tags":[6843,23548,12348,6406],"supplier":[26414],"class_list":["post-163669","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bio-based","tag-biochemicals","tag-biocoatings","tag-coatings","tag-environment","supplier-harbin-engineering-university"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/163669","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=163669"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/163669\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media\/163693"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=163669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=163669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=163669"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=163669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}