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RC\u2010BBPs stabilize the fluid\u2013fluid interface by forming laterally confined, \u201craft\u2010like\u201d structures that anchor the side\u2010chains parallel to the interface. These envisaged raft\u2010like structures, when adsorbed to a fluid\u2013fluid interface, are inferred to leave bare interfacial regions that are inaccessible to adsorption of additional rafts. As such, RC\u2010BBPs prohibit dense interfacial packing and yield higher interfacial tensions and lower interfacial areal densities than compositionally uniform bottlebrush statistical copolymers (BSCPs). This interfacial assembly of bottlebrush polymer (BBP) rafts offers distinct advantages, since inter\u2010raft gaps reflect a lack of close\u2010packing that offers routes to mass transport, seen in this work as a &gt;6\u2010fold higher interfacial ion flux across RC\u2010BBP\u2010stabilized droplets relative to their BSCP counterparts. These results show that controlling the spatial distribution of BBPs via sequence randomness within the side\u2010chains\u2014a previously overlooked structural parameter\u2014produces a distinct, sparsely packed assembly of BBPs that preserves bare interfacial area to yield regulated, patchy, selective, or adaptive liquid\u2013liquid interfaces.<\/jats:p>","DOI":"10.1002\/anie.7096050","type":"journal-article","created":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T11:32:37Z","timestamp":1786015957000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Interfacial Raft\u2010Like Structures From Bottlebrush Polymers"],"prefix":"10.1002","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6079-0281","authenticated-orcid":false,"given":"Dupyo","family":"Jeon","sequence":"first","affiliation":[{"name":"Polymer Science and Engineering Department Conte Center for Polymer Research University of 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