{"id":{"repo_id":"nus","oai_identifier":"oai:scholarbank.nus.edu.sg:10635/14177"},"canonical_url":"https://search.dev.ndltd.org/etd/nus/oai:scholarbank.nus.edu.sg:10635/14177","repository":{"repo_id":"nus","name":"National University of Singapore","base_url":"https://scholarbank.nus.edu.sg/oai/request"},"display":{"title":"Synthesis and characterization of novel conjugated polymers and rod-coil block copolymers","abstract":"A series of polyfluorene-based (PF) conjugated copolymers have been synthesized to improve the spectral stability, hole-injection properties and water processibility which are the major challenges for PF-type materials. The focus of this work has been to examine whether properties of conjugated polymers can be manipulated through making hyperbranced or rod-coil copolymers. The unfavorable intermolecular interaction of PF which may generate green emission species was found to be successfully suppressed through structural branching. The hole-injection properties of PF was also tuned through a rod-coil structure, where hole transporter-containing coiled segments were connected with PF to form tribliock copolymers. The preparation of amphiphilic copolymers rendered PF water processible, which makes them good candidates in multilayer device application. These advanced materials offer technologically practical solutions for the blue light-emitting diodes.","abstract_html":"A series of polyfluorene-based (PF) conjugated copolymers have been synthesized to improve the spectral stability, hole-injection properties and water processibility which are the major challenges for PF-type materials. The focus of this work has been to examine whether properties of conjugated polymers can be manipulated through making hyperbranced or rod-coil copolymers. The unfavorable intermolecular interaction of PF which may generate green emission species was found to be successfully suppressed through structural branching. The hole-injection properties of PF was also tuned through a rod-coil structure, where hole transporter-containing coiled segments were connected with PF to form tribliock copolymers. The preparation of amphiphilic copolymers rendered PF water processible, which makes them good candidates in multilayer device application. These advanced materials offer technologically practical solutions for the blue light-emitting diodes.","abstract_has_math":false,"creators":["LU SU"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004-07-22","date_published":"2004-07-22","updated_at":"2026-07-24T03:31:13Z","subjects":["polyfluorene; light-emitting diode; conjugated polymer; block copolymer; hyperbranched polymer; amphiphilic polymer;"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["LU SU"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2004-07-22"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://scholarbank.nus.edu.sg/handle/10635/14177"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["polyfluorene; light-emitting diode; conjugated polymer; block copolymer; hyperbranched polymer; amphiphilic polymer;"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://scholarbank.nus.edu.sg/bitstreams/62516777-2cfd-4900-b8bf-120180f69057/download","https://scholarbank.nus.edu.sg/bitstreams/b6a9fd04-0ed7-4a26-84ed-0f3914ad6de9/download","https://scholarbank.nus.edu.sg/bitstreams/2971abb9-3bfa-4191-bfcb-8e326f37bc9d/download","https://scholarbank.nus.edu.sg/bitstreams/a08e08d8-ba2b-41bc-9132-95df3eff8141/download","https://scholarbank.nus.edu.sg/bitstreams/11679dc3-d7b3-4e3b-8855-53998cd1a30e/download","https://scholarbank.nus.edu.sg/bitstreams/c26e4b40-2744-4f94-8a50-bfb345d9d579/download","https://scholarbank.nus.edu.sg/bitstreams/f61940f9-d82b-4885-9069-71e9ffaa6ab9/download","https://scholarbank.nus.edu.sg/bitstreams/5ec3928e-28cc-4b5f-bd91-a4fde69d9bf9/download","https://scholarbank.nus.edu.sg/bitstreams/49f87bab-7017-4869-8655-35e52b77ab2c/download"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A series of polyfluorene-based (PF) conjugated copolymers have been synthesized to improve the spectral stability, hole-injection properties and water processibility which are the major challenges for PF-type materials. The focus of this work has been to examine whether properties of conjugated polymers can be manipulated through making hyperbranced or rod-coil copolymers. The unfavorable intermolecular interaction of PF which may generate green emission species was found to be successfully suppressed through structural branching. The hole-injection properties of PF was also tuned through a rod-coil structure, where hole transporter-containing coiled segments were connected with PF to form tribliock copolymers. The preparation of amphiphilic copolymers rendered PF water processible, which makes them good candidates in multilayer device application. These advanced materials offer technologically practical solutions for the blue light-emitting diodes."]},{"key":"dc:format.checksum.md5","label":"Dc Format Checksum Md5","values":["8befa499b572498c114ca14fa6035e1c","158cf06acb2a8c884254c30048a8c93d","4eb50c9ff6324b790df88e0f243b18a2","f80456de9b79e02caeaa60f2da6c61ac","292286293b6665ae729017f52cd4b405","2a837ef1460306d1e27d2ac7268067ab","111c0cd8decb05a9bbb91a7e849a106d","bbf2fb1815af4a31ce492086a9aa8b5a","a22bc3e0d816fe8321dd659782952d71","d2a4efd2ca1ee91e1f691a20040ffccf","0fc762e8539cf40befbc6893355c489e","88e97c6ab13aae5f56438bb998511e59","ddfeae3f2db9a5e8ee219ed2d1b5e86a","7e5ff0d53db129facc3a0a23f9b95005","3efb3f0ab734c827ac1361b7d0ff52f6","6ad19f91cc329596677c4e25d4951c23","c53f4cafd04da5821fbdc4497f876849","a459c8db81631f0104559a29002fa8c6"]},{"key":"dc:title","label":"Title","values":["Synthesis and characterization of novel conjugated polymers and rod-coil block copolymers"]}]}],"canonical_facts":{"dc:creator":["LU SU"],"dc:date.issued":["2004-07-22"],"dc:description.abstract":["A series of polyfluorene-based (PF) conjugated copolymers have been synthesized to improve the spectral stability, hole-injection properties and water processibility which are the major challenges for PF-type materials. The focus of this work has been to examine whether properties of conjugated polymers can be manipulated through making hyperbranced or rod-coil copolymers. The unfavorable intermolecular interaction of PF which may generate green emission species was found to be successfully suppressed through structural branching. The hole-injection properties of PF was also tuned through a rod-coil structure, where hole transporter-containing coiled segments were connected with PF to form tribliock copolymers. The preparation of amphiphilic copolymers rendered PF water processible, which makes them good candidates in multilayer device application. These advanced materials offer technologically practical solutions for the blue light-emitting diodes."],"dc:format.checksum.md5":["8befa499b572498c114ca14fa6035e1c","158cf06acb2a8c884254c30048a8c93d","4eb50c9ff6324b790df88e0f243b18a2","f80456de9b79e02caeaa60f2da6c61ac","292286293b6665ae729017f52cd4b405","2a837ef1460306d1e27d2ac7268067ab","111c0cd8decb05a9bbb91a7e849a106d","bbf2fb1815af4a31ce492086a9aa8b5a","a22bc3e0d816fe8321dd659782952d71","d2a4efd2ca1ee91e1f691a20040ffccf","0fc762e8539cf40befbc6893355c489e","88e97c6ab13aae5f56438bb998511e59","ddfeae3f2db9a5e8ee219ed2d1b5e86a","7e5ff0d53db129facc3a0a23f9b95005","3efb3f0ab734c827ac1361b7d0ff52f6","6ad19f91cc329596677c4e25d4951c23","c53f4cafd04da5821fbdc4497f876849","a459c8db81631f0104559a29002fa8c6"],"dc:identifier.uri":["https://scholarbank.nus.edu.sg/bitstreams/62516777-2cfd-4900-b8bf-120180f69057/download","https://scholarbank.nus.edu.sg/bitstreams/b6a9fd04-0ed7-4a26-84ed-0f3914ad6de9/download","https://scholarbank.nus.edu.sg/bitstreams/2971abb9-3bfa-4191-bfcb-8e326f37bc9d/download","https://scholarbank.nus.edu.sg/bitstreams/a08e08d8-ba2b-41bc-9132-95df3eff8141/download","https://scholarbank.nus.edu.sg/bitstreams/11679dc3-d7b3-4e3b-8855-53998cd1a30e/download","https://scholarbank.nus.edu.sg/bitstreams/c26e4b40-2744-4f94-8a50-bfb345d9d579/download","https://scholarbank.nus.edu.sg/bitstreams/f61940f9-d82b-4885-9069-71e9ffaa6ab9/download","https://scholarbank.nus.edu.sg/bitstreams/5ec3928e-28cc-4b5f-bd91-a4fde69d9bf9/download","https://scholarbank.nus.edu.sg/bitstreams/49f87bab-7017-4869-8655-35e52b77ab2c/download"],"dc:relation.isreferencedby":["https://scholarbank.nus.edu.sg/handle/10635/14177"],"dc:subject":["polyfluorene; light-emitting diode; conjugated polymer; block copolymer; hyperbranched polymer; amphiphilic polymer;"],"dc:title":["Synthesis and characterization of novel conjugated polymers and rod-coil block copolymers"],"dc:type":["Thesis"]},"updated_at":"2026-07-24T03:31:13Z"}