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Here, amphiphilic polyester\u2010\n                    <jats:italic>block<\/jats:italic>\n                    \u2010poly(ethylene glycol) bottlebrush block copolymers (BBCPs) with polylactic acid or poly(\u03f5\u2010caprolactone) as the hydrophobic block are synthesized and used to fabricate eco\u2010friendly photonic pigments. Molecular parameters of BBCPs, including rigidity and symmetry, are precisely tailored by variation of side chain lengths, which enables effective manipulation of interfacial tension (\n                    <jats:italic>\u03b3<\/jats:italic>\n                    ). Organized spontaneous emulsion mechanism is enabled only when\n                    <jats:italic>\u03b3<\/jats:italic>\n                    falls in a suitable range (10.6\u201314.3\u2005mN\u2009m\n                    <jats:sup>\u22121<\/jats:sup>\n                    ), producing ordered water\u2010in\u2010oil\u2010in\u2010water multiple emulsions and ordered porous structures. Consequently, highly saturated and tunable structural colors are observed due to coherent light scattering from the porous structures. Such photonic materials are nontoxic as confirmed by careful safety tests using aquatic model organisms.\n                  <\/jats:p>","DOI":"10.1002\/anie.202206723","type":"journal-article","created":{"date-parts":[[2022,6,19]],"date-time":"2022-06-19T22:19:06Z","timestamp":1655677146000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":56,"title":["Precise Tailoring of Polyester Bottlebrush Amphiphiles toward Eco\u2010Friendly Photonic Pigments via Interfacial Self\u2010Assembly"],"prefix":"10.1002","volume":"61","author":[{"given":"Qilin","family":"Guo","sequence":"first","affiliation":[{"name":"Key Laboratory of Composite and Functional Materials School of Materials Science and Engineering Tianjin University Tianjin 300350 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Runze","family":"Xue","sequence":"additional","affiliation":[{"name":"Institute of Coastal Environmental Pollution Control Key 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