Study of Gases Permeation in Necklace-Shaped Dimethylsiloxane Polymers Bearing POSS Cages

Roman Selyanchyn, Shigenori Fujikawa, Naohiro Katsuta, Kazuya Suwa, Masashi Kunitake

Research output: Contribution to journalArticle

Abstract

The transport of small gases (H2, CO2, N2, O2) through a series of novel membranes based on necklace-shaped inorganic polymers (DMS@POSS), in which a polyhedral oligomeric silsesquioxane (POSS) cage unit and soft chains of oligo-dimethyl siloxane (DMS) were alternately connected, was investigated. The influence of the DMS chain length and crosslinking density of the DMS@POSS on membrane properties were studied. The membranes revealed characteristic structure-property relation towards both glass transition and gases transport. Specifically, a clear dependence of properties from the length of DMS units (or overall siloxane content) was revealed. Gas transport properties, when compared to state-of-art polydimethylsiloxane and commercial silicone rubber, demonstrated significantly higher selectivity of DMS@POSS for carbon dioxide (in CO2/N2), hydrogen (in H2/N2) and oxygen (in O2/N2) but lowered permeability, proportional to the amount of POSS in the material. With precise control over mechanical and thermal properties compared to conventional silicone rubbers, described materials could be considered as materials of choice in niche gas separation or other applications.
Original languageEnglish
Article number54
Pages (from-to)1
Number of pages13
JournalMembranes
Volume9
Issue number4
Publication statusPublished - Apr 16 2019

Fingerprint

Bearings (structural)
Dimethylpolysiloxanes
Siloxanes
Permeation
Polymers
Gases
Membranes
Silicones
Rubber
Silicone Elastomers
Inorganic polymers
Polydimethylsiloxane
Chain length
Crosslinking
Transport properties
Glass transition
Carbon dioxide
Thermodynamic properties
Mechanical properties
Hydrogen

All Science Journal Classification (ASJC) codes

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Study of Gases Permeation in Necklace-Shaped Dimethylsiloxane Polymers Bearing POSS Cages. / Selyanchyn, Roman; Fujikawa, Shigenori; Katsuta, Naohiro; Suwa, Kazuya; Kunitake, Masashi.

In: Membranes, Vol. 9, No. 4, 54, 16.04.2019, p. 1.

Research output: Contribution to journalArticle

Selyanchyn, Roman ; Fujikawa, Shigenori ; Katsuta, Naohiro ; Suwa, Kazuya ; Kunitake, Masashi. / Study of Gases Permeation in Necklace-Shaped Dimethylsiloxane Polymers Bearing POSS Cages. In: Membranes. 2019 ; Vol. 9, No. 4. pp. 1.
@article{47f2c3fb0ddf4591a8e5ba6bf9764af2,
title = "Study of Gases Permeation in Necklace-Shaped Dimethylsiloxane Polymers Bearing POSS Cages",
abstract = "The transport of small gases (H2, CO2, N2, O2) through a series of novel membranes based on necklace-shaped inorganic polymers (DMS@POSS), in which a polyhedral oligomeric silsesquioxane (POSS) cage unit and soft chains of oligo-dimethyl siloxane (DMS) were alternately connected, was investigated. The influence of the DMS chain length and crosslinking density of the DMS@POSS on membrane properties were studied. The membranes revealed characteristic structure-property relation towards both glass transition and gases transport. Specifically, a clear dependence of properties from the length of DMS units (or overall siloxane content) was revealed. Gas transport properties, when compared to state-of-art polydimethylsiloxane and commercial silicone rubber, demonstrated significantly higher selectivity of DMS@POSS for carbon dioxide (in CO2/N2), hydrogen (in H2/N2) and oxygen (in O2/N2) but lowered permeability, proportional to the amount of POSS in the material. With precise control over mechanical and thermal properties compared to conventional silicone rubbers, described materials could be considered as materials of choice in niche gas separation or other applications.",
author = "Roman Selyanchyn and Shigenori Fujikawa and Naohiro Katsuta and Kazuya Suwa and Masashi Kunitake",
year = "2019",
month = "4",
day = "16",
language = "English",
volume = "9",
pages = "1",
journal = "Membranes",
issn = "2077-0375",
publisher = "Molecular Diversity Preservation International",
number = "4",

}

TY - JOUR

T1 - Study of Gases Permeation in Necklace-Shaped Dimethylsiloxane Polymers Bearing POSS Cages

AU - Selyanchyn, Roman

AU - Fujikawa, Shigenori

AU - Katsuta, Naohiro

AU - Suwa, Kazuya

AU - Kunitake, Masashi

PY - 2019/4/16

Y1 - 2019/4/16

N2 - The transport of small gases (H2, CO2, N2, O2) through a series of novel membranes based on necklace-shaped inorganic polymers (DMS@POSS), in which a polyhedral oligomeric silsesquioxane (POSS) cage unit and soft chains of oligo-dimethyl siloxane (DMS) were alternately connected, was investigated. The influence of the DMS chain length and crosslinking density of the DMS@POSS on membrane properties were studied. The membranes revealed characteristic structure-property relation towards both glass transition and gases transport. Specifically, a clear dependence of properties from the length of DMS units (or overall siloxane content) was revealed. Gas transport properties, when compared to state-of-art polydimethylsiloxane and commercial silicone rubber, demonstrated significantly higher selectivity of DMS@POSS for carbon dioxide (in CO2/N2), hydrogen (in H2/N2) and oxygen (in O2/N2) but lowered permeability, proportional to the amount of POSS in the material. With precise control over mechanical and thermal properties compared to conventional silicone rubbers, described materials could be considered as materials of choice in niche gas separation or other applications.

AB - The transport of small gases (H2, CO2, N2, O2) through a series of novel membranes based on necklace-shaped inorganic polymers (DMS@POSS), in which a polyhedral oligomeric silsesquioxane (POSS) cage unit and soft chains of oligo-dimethyl siloxane (DMS) were alternately connected, was investigated. The influence of the DMS chain length and crosslinking density of the DMS@POSS on membrane properties were studied. The membranes revealed characteristic structure-property relation towards both glass transition and gases transport. Specifically, a clear dependence of properties from the length of DMS units (or overall siloxane content) was revealed. Gas transport properties, when compared to state-of-art polydimethylsiloxane and commercial silicone rubber, demonstrated significantly higher selectivity of DMS@POSS for carbon dioxide (in CO2/N2), hydrogen (in H2/N2) and oxygen (in O2/N2) but lowered permeability, proportional to the amount of POSS in the material. With precise control over mechanical and thermal properties compared to conventional silicone rubbers, described materials could be considered as materials of choice in niche gas separation or other applications.

M3 - Article

VL - 9

SP - 1

JO - Membranes

JF - Membranes

SN - 2077-0375

IS - 4

M1 - 54

ER -