Sizable iodine uptake of porous copolymer networks bearing Tröger's base units

Suchetha Shetty; Noorullah Baig; Moustafa Sherief Moustafa; Saleh Al-Mousawi; Bassam Alameddine

doi:10.1016/j.polymer.2021.123996

Sizable iodine uptake of porous copolymer networks bearing Tröger's base units

Suchetha Shetty, Noorullah Baig, Moustafa Sherief Moustafa, Saleh Al-Mousawi, Bassam Alameddine

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Copolymer networks containing Tröger's base units TBP1-3 were synthesized in very good yields from a Sonogashira cross-coupling reaction of a specially designed diethynyl Tröger's base synthon TB with various tetrabrominated aryl derivatives. Thermogravimetric analysis (TGA) of TBP1-3 discloses high 10% weight loss temperature values reaching up to 443 °C. Nitrogen adsorption measurements of the target copolymers TBP1-3 reveal a strong correlation between porosity and the geometry of the aryl spacer whose inflexible rigid structure (biphenyl, TBP1), contorted configuration (spirobifluorene, TBP2), or fused aromatic structure (pyrene, TBP3) affords Brunauer-Emmett-Teller (BET) surface areas ranging from ~586 m² g⁻¹ to ~620 m² g⁻¹. Inspection of the iodine adsorption properties of TBP1-3 reveals their significant uptake of iodine vapors reaching a maximum of 440 wt% for TBP1 whereas TBP2 exhibits a very good removal efficiency of iodine solution in hexane attaining 77% (q_e = 192 mg g⁻¹). Furthermore, reusability tests disclose the possibility to regenerate the polymers even after several iodine adsorptions-desorption cycles.

Original language	English
Article number	123996
Journal	Polymer
Volume	229
DOIs	https://doi.org/10.1016/j.polymer.2021.123996
State	Published - 16 Aug 2021

Keywords

Brunauer-Emmett-Teller surface area (BET)
Covalent organic polymers
Iodine uptake
Porous materials
Tröger's base

Funding Agency

Kuwait Foundation for the Advancement of Sciences

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10.1016/j.polymer.2021.123996

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title = "Sizable iodine uptake of porous copolymer networks bearing Tr{\"o}ger's base units",

abstract = "Copolymer networks containing Tr{\"o}ger's base units TBP1-3 were synthesized in very good yields from a Sonogashira cross-coupling reaction of a specially designed diethynyl Tr{\"o}ger's base synthon TB with various tetrabrominated aryl derivatives. Thermogravimetric analysis (TGA) of TBP1-3 discloses high 10% weight loss temperature values reaching up to 443 °C. Nitrogen adsorption measurements of the target copolymers TBP1-3 reveal a strong correlation between porosity and the geometry of the aryl spacer whose inflexible rigid structure (biphenyl, TBP1), contorted configuration (spirobifluorene, TBP2), or fused aromatic structure (pyrene, TBP3) affords Brunauer-Emmett-Teller (BET) surface areas ranging from ~586 m2 g−1 to ~620 m2 g−1. Inspection of the iodine adsorption properties of TBP1-3 reveals their significant uptake of iodine vapors reaching a maximum of 440 wt% for TBP1 whereas TBP2 exhibits a very good removal efficiency of iodine solution in hexane attaining 77% (qe = 192 mg g−1). Furthermore, reusability tests disclose the possibility to regenerate the polymers even after several iodine adsorptions-desorption cycles.",

keywords = "Brunauer-Emmett-Teller surface area (BET), Covalent organic polymers, Iodine uptake, Porous materials, Tr{\"o}ger's base",

author = "Suchetha Shetty and Noorullah Baig and Moustafa, {Moustafa Sherief} and Saleh Al-Mousawi and Bassam Alameddine",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

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doi = "10.1016/j.polymer.2021.123996",

language = "English",

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T1 - Sizable iodine uptake of porous copolymer networks bearing Tröger's base units

AU - Shetty, Suchetha

AU - Baig, Noorullah

AU - Moustafa, Moustafa Sherief

AU - Al-Mousawi, Saleh

AU - Alameddine, Bassam

PY - 2021/8/16

Y1 - 2021/8/16

N2 - Copolymer networks containing Tröger's base units TBP1-3 were synthesized in very good yields from a Sonogashira cross-coupling reaction of a specially designed diethynyl Tröger's base synthon TB with various tetrabrominated aryl derivatives. Thermogravimetric analysis (TGA) of TBP1-3 discloses high 10% weight loss temperature values reaching up to 443 °C. Nitrogen adsorption measurements of the target copolymers TBP1-3 reveal a strong correlation between porosity and the geometry of the aryl spacer whose inflexible rigid structure (biphenyl, TBP1), contorted configuration (spirobifluorene, TBP2), or fused aromatic structure (pyrene, TBP3) affords Brunauer-Emmett-Teller (BET) surface areas ranging from ~586 m2 g−1 to ~620 m2 g−1. Inspection of the iodine adsorption properties of TBP1-3 reveals their significant uptake of iodine vapors reaching a maximum of 440 wt% for TBP1 whereas TBP2 exhibits a very good removal efficiency of iodine solution in hexane attaining 77% (qe = 192 mg g−1). Furthermore, reusability tests disclose the possibility to regenerate the polymers even after several iodine adsorptions-desorption cycles.

AB - Copolymer networks containing Tröger's base units TBP1-3 were synthesized in very good yields from a Sonogashira cross-coupling reaction of a specially designed diethynyl Tröger's base synthon TB with various tetrabrominated aryl derivatives. Thermogravimetric analysis (TGA) of TBP1-3 discloses high 10% weight loss temperature values reaching up to 443 °C. Nitrogen adsorption measurements of the target copolymers TBP1-3 reveal a strong correlation between porosity and the geometry of the aryl spacer whose inflexible rigid structure (biphenyl, TBP1), contorted configuration (spirobifluorene, TBP2), or fused aromatic structure (pyrene, TBP3) affords Brunauer-Emmett-Teller (BET) surface areas ranging from ~586 m2 g−1 to ~620 m2 g−1. Inspection of the iodine adsorption properties of TBP1-3 reveals their significant uptake of iodine vapors reaching a maximum of 440 wt% for TBP1 whereas TBP2 exhibits a very good removal efficiency of iodine solution in hexane attaining 77% (qe = 192 mg g−1). Furthermore, reusability tests disclose the possibility to regenerate the polymers even after several iodine adsorptions-desorption cycles.

KW - Brunauer-Emmett-Teller surface area (BET)

KW - Covalent organic polymers

KW - Iodine uptake

KW - Porous materials

KW - Tröger's base

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JF - Polymer

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ER -

Sizable iodine uptake of porous copolymer networks bearing Tröger's base units

Abstract

Keywords

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