Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이영무 | - |
dc.date.accessioned | 2019-12-06T00:27:48Z | - |
dc.date.available | 2019-12-06T00:27:48Z | - |
dc.date.issued | 2018-03 | - |
dc.identifier.citation | REACTIVE & FUNCTIONAL POLYMERS, v. 127, page. 38-47 | en_US |
dc.identifier.issn | 1381-5148 | - |
dc.identifier.issn | 1873-166X | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/abs/pii/S1381514818300671?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/117751 | - |
dc.description.abstract | Two series of aromatic poly(ortho-hydroxyamide)s (poly(o-hydroxyamide)s, HPAs) were prepared by reaction of two diamines, 2,2-bis(3-amino-4-hydroxyphenyl) propane (APA) and 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane (APAF), with four aromatic diacid chlorides; terephthaloyl dichloride (TPC), isophthaloyl dichloride (IPC), 2,2-bis(4-chlorocarbonylphenyl)hexafluoropropane (6FC) and 4,4'-sulfonyldibenzoyl dichloride (DBSC). Amorphous HPAs with high molecular weights (inherent viscosities higher than 0.5 dL/g) and relatively high glass transition temperatures (220-280 degrees C) were obtained. Dense membranes of HPAs were able to undergo a thermal rearrangement (TR) process to polybenzoxazoles (beta-TR-PBOs) heating at moderate temperatures (between 250 and 375 degrees C), and their complete conversion was reached at a temperature below 375 degrees C, depending on the o-hydroxy diamine moiety, APA and APAF. The B-TR-PBOs films derived from APAF showed a higher thermal stability and higher Tg than those from APA. Gas separation properties of TR-PBOs membranes were superior to those of their poly(o-hydroxyamide) precursors, particularly for the following gas pairs: O-2/N-2, CO2/CH4, He/CH4 and He/CO2. | en_US |
dc.description.sponsorship | The financial support provided, by the Spain's MINECO (MAT2013-45071-R and MAT2016-76413-C2-1-R and MAT2016-76413-C2-2-R AEI/FEDER, UE and CTQ 2012-31076) is greatly acknowledged. This research was also supported by the Korea Carbon Capture & Sequestration R&D Center (KCRC) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning (NRF-2014M1A8A1049305). We are also indebted to the Spanish Junta de Castilla y Leon for its funding help (project VA248U13). Authors kindly acknowledge Sara Rodriguez for carrying out the gas separation tests and Judit Gonzalez Jarillo for performing polymer characterization. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Gas separation membranes | en_US |
dc.subject | Polybenzoxazoles | en_US |
dc.subject | TR polymers | en_US |
dc.subject | Thermal treatment | en_US |
dc.subject | Poly(o-hydroxyamide)s (HPAs) | en_US |
dc.subject | CO2 separation | en_US |
dc.subject | He purification | en_US |
dc.title | Thermally rearranged polybenzoxazoles made from poly(ortho-hydroxyamide)s. Characterization and evaluation as gas separation membranes | en_US |
dc.type | Article | en_US |
dc.relation.volume | 127 | - |
dc.identifier.doi | 10.1016/j.reactfunctpolym.2018.03.013 | - |
dc.relation.page | 38-47 | - |
dc.relation.journal | REACTIVE & FUNCTIONAL POLYMERS | - |
dc.contributor.googleauthor | Diez, Blanca | - |
dc.contributor.googleauthor | Cuadrado, Purificacion | - |
dc.contributor.googleauthor | Marcos-Fernandez, Angel | - |
dc.contributor.googleauthor | de la Campa, Jose G. | - |
dc.contributor.googleauthor | Tena, Alberto | - |
dc.contributor.googleauthor | Pradanos, Pedro | - |
dc.contributor.googleauthor | Palacio, Laura | - |
dc.contributor.googleauthor | Lee, Young Moo | - |
dc.contributor.googleauthor | Alvarez, Cristina | - |
dc.contributor.googleauthor | Lozano, Angel E. | - |
dc.relation.code | 2018001059 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | ymlee | - |
dc.identifier.researcherID | G-5920-2015 | - |
dc.identifier.orcid | http://orcid.org/0000-0002-5047-3143 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.