Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials
Three new phenylacetylene monomers having one or two carbamate groups were synthesized and polymerized by using (Rh(norbornadiene)Cl)<sub>2</sub> as an initiator. The resulting polymers had very high average molecular weights (<i>Mw</i>) of 1.4–4.8 × 10<sup>6</sup>...
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doaj-774358e484ab48669592b5b1ccbbbf502020-11-25T03:11:30ZengMDPI AGMembranes2077-03752020-08-011019919910.3390/membranes10090199Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane MaterialsYu Zang0Yinghui Lun1Masahiro Teraguchi2Takashi Kaneko3Hongge Jia4Fengjuan Miao5Xunhai Zhang6Toshiki Aoki7Key laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, ChinaDepartment of Materials and Chemical Engineering, Hunan Institute of Technology, Hengyang, Hunan 421002, ChinaChemistry and Chemical Engineering, Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Nishi-ku, Niigata 950-2181, JapanChemistry and Chemical Engineering, Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Nishi-ku, Niigata 950-2181, JapanKey laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, ChinaCollege of Communications and Electronics Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, ChinaKey laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, ChinaKey laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, ChinaThree new phenylacetylene monomers having one or two carbamate groups were synthesized and polymerized by using (Rh(norbornadiene)Cl)<sub>2</sub> as an initiator. The resulting polymers had very high average molecular weights (<i>Mw</i>) of 1.4–4.8 × 10<sup>6</sup>, with different solubility and membrane-forming abilities. The polymer having two carbamate groups and no hydroxy groups in the monomer unit showed the best solubility and membrane-forming ability among the three polymers. In addition, the oxygen permeability coefficient of the membrane was more than 135 times higher than that of a polymer having no carbamate groups and two hydroxy groups in the monomer unit with maintaining similar oxygen permselectivity. A better performance in membrane-forming ability and oxygen permeability may be caused by a more extended and flexible cis-transoid conformation and lower polarity. On the other hand, the other two new polymers having one carbamate group and two hydroxy groups in the monomer unit showed lower performances in membrane-forming abilities and oxygen permeabilities. It may be caused by a very tight cis-cisoid conformation, which was maintained by intramolecular hydrogen bonds.https://www.mdpi.com/2077-0375/10/9/199polyphenylacetylenecis-cisoid conformationcis-transoid conformationcarbamate groupmembrane-forming abilitysolubility |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yu Zang Yinghui Lun Masahiro Teraguchi Takashi Kaneko Hongge Jia Fengjuan Miao Xunhai Zhang Toshiki Aoki |
spellingShingle |
Yu Zang Yinghui Lun Masahiro Teraguchi Takashi Kaneko Hongge Jia Fengjuan Miao Xunhai Zhang Toshiki Aoki Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials Membranes polyphenylacetylene cis-cisoid conformation cis-transoid conformation carbamate group membrane-forming ability solubility |
author_facet |
Yu Zang Yinghui Lun Masahiro Teraguchi Takashi Kaneko Hongge Jia Fengjuan Miao Xunhai Zhang Toshiki Aoki |
author_sort |
Yu Zang |
title |
Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials |
title_short |
Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials |
title_full |
Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials |
title_fullStr |
Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials |
title_full_unstemmed |
Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials |
title_sort |
synthesis of cis-cisoid or cis-transoid poly(phenyl-acetylene)s having one or two carbamate groups as oxygen permeation membrane materials |
publisher |
MDPI AG |
series |
Membranes |
issn |
2077-0375 |
publishDate |
2020-08-01 |
description |
Three new phenylacetylene monomers having one or two carbamate groups were synthesized and polymerized by using (Rh(norbornadiene)Cl)<sub>2</sub> as an initiator. The resulting polymers had very high average molecular weights (<i>Mw</i>) of 1.4–4.8 × 10<sup>6</sup>, with different solubility and membrane-forming abilities. The polymer having two carbamate groups and no hydroxy groups in the monomer unit showed the best solubility and membrane-forming ability among the three polymers. In addition, the oxygen permeability coefficient of the membrane was more than 135 times higher than that of a polymer having no carbamate groups and two hydroxy groups in the monomer unit with maintaining similar oxygen permselectivity. A better performance in membrane-forming ability and oxygen permeability may be caused by a more extended and flexible cis-transoid conformation and lower polarity. On the other hand, the other two new polymers having one carbamate group and two hydroxy groups in the monomer unit showed lower performances in membrane-forming abilities and oxygen permeabilities. It may be caused by a very tight cis-cisoid conformation, which was maintained by intramolecular hydrogen bonds. |
topic |
polyphenylacetylene cis-cisoid conformation cis-transoid conformation carbamate group membrane-forming ability solubility |
url |
https://www.mdpi.com/2077-0375/10/9/199 |
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