{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T15:57:03Z","timestamp":1780329423088,"version":"3.54.1"},"reference-count":56,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2019,1,27]],"date-time":"2019-01-27T00:00:00Z","timestamp":1548547200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002850","name":"Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["1150157"],"award-info":[{"award-number":["1150157"]}],"id":[{"id":"10.13039\/501100002850","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Programa de equipamiento cient\u00edfico y tecnol\u00f3gico","award":["EQM120021"],"award-info":[{"award-number":["EQM120021"]}]},{"DOI":"10.13039\/501100002848","name":"Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica","doi-asserted-by":"publisher","award":["CONICYT-PCHA\/2015-21151317"],"award-info":[{"award-number":["CONICYT-PCHA\/2015-21151317"]}],"id":[{"id":"10.13039\/501100002848","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Three new triphenylamine-based oligomeric Schiff bases (polySB1, polySB2 and polySB3) containing tetraphenylsilane core (TPS-core) in the main chain were obtained from TPS-core-based diamines and bis(4-formylphenyl)phenylamine by a high-temperature polycondensation reaction. These new oligomers were structurally characterized by FT-IR, NMR and elemental analysis. All polySBs were highly soluble in common organic solvents, such as chloroform, tetrahydrofuran and chlorobenzene. Samples showed moderate molecular average molecular weight (Mw) and a high thermal stability above 410 \u00b0C. Likewise, polySBs showed absorption near 400 nm in the UV-vis range and photoluminescence. The HOMO levels and band-gap values were found in the ranges of \u22126.06 to \u22126.18 eV and 2.65\u20132.72 eV, respectively. The lowest band-gap value was observed for polySB2, which could be attributed to a more effective \u03c0-conjugation across the main chain. The results suggest that silicon-containing polySBs are promising wide-band-gap semiconductors materials for optoelectronic applications.<\/jats:p>","DOI":"10.3390\/polym11020216","type":"journal-article","created":{"date-parts":[[2019,1,29]],"date-time":"2019-01-29T03:40:55Z","timestamp":1548733255000},"page":"216","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["New Triphenylamine-Based Oligomeric Schiff Bases Containing Tetraphenylsilane Moieties in the Backbone"],"prefix":"10.3390","volume":"11","author":[{"given":"Patricio A.","family":"Sobarzo","sequence":"first","affiliation":[{"name":"Research Laboratory for Organic Polymers, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexis F.","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Research Laboratory for Organic Polymers, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eduardo","family":"Schott","sequence":"additional","affiliation":[{"name":"Department of Inorganic Chemistry, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis H.","family":"Tagle","sequence":"additional","affiliation":[{"name":"Research Laboratory for Organic Polymers, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alain","family":"Tundidor-Camba","sequence":"additional","affiliation":[{"name":"Research Laboratory for Organic Polymers, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"},{"name":"UC Energy Research Center, Pontificia Universidad Cat\u00f3lica de Chile, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carmen","family":"Gonz\u00e1lez-Henr\u00edquez","sequence":"additional","affiliation":[{"name":"Laboratory of Nanotechnology and Advanced Materials, Universidad Tecnol\u00f3gica Metropolitana, P.O. Box 9845, Post 21, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ignacio A.","family":"Jessop","sequence":"additional","affiliation":[{"name":"Laboratorio de Materiales Org\u00e1nicos y Polim\u00e9ricos, Department of Chemistry, Faculty of Chemistry, Universidad de Tarapac\u00e1, P.O. Box 7-D, Arica, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudio A.","family":"Terraza","sequence":"additional","affiliation":[{"name":"Research Laboratory for Organic Polymers, Pontificia Universidad Cat\u00f3lica de Chile, P.O. Box 306, Post 22, Santiago, Chile"},{"name":"UC Energy Research Center, Pontificia Universidad Cat\u00f3lica de Chile, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,1,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"720","DOI":"10.1038\/s41560-018-0181-5","article-title":"Material insights and challenges for non-fullerene organic solar cells based on small molecular acceptors","volume":"3","author":"Zhang","year":"2018","journal-title":"Nat. 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