Novel multiarm star block copolymer ionomers as proton conductive membranes

Literature Information

Publication Date 2014-09-25
DOI 10.1039/C4PY00994K
Impact Factor 5.582
Authors

Tuba Erdogan, Elif Erdal Unveren, A. Levent Demirel, Umit Tunca


View Original

Abstract

A series of well-defined novel multiarm star block copolymer ionomers with an average of 6, 11 and 15 arms, sulfonated polystyrene-block-poly(2,2,3,3,3-pentafluoropropyl methacrylate) (SPS-b-PFPMA), were prepared via a combination of atom transfer radical polymerization (ATRP), Diels–Alder click reaction and postsulfonation reaction. First, multiarm star polymer with anthracene functionality as reactive periphery groups was prepared by a cross-linking reaction of divinyl benzene using α-anthracene end functionalized PS (PS-anthracene) as a macroinitiator. Thus, obtained multiarm star polymer was reacted with furan protected maleimide-end functionalized PFPMA (PFPMA-MI) resulting in the corresponding fluorinated multiarm star block copolymers via Diels–Alder click reaction. The third step involves the sulfonation reaction of phenyl ring of polystyrene block with acetyl sulfate at 20 °C. The structures, molecular characterization and thermal properties of the multiarm star block copolymers were characterized by 1H nuclear magnetic resonance (1H NMR) and infrared (IR) spectroscopy, size exclusion chromatography (SEC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Thermal analysis indicated separate glass transitions of the PFPMA and PS phases. Both the membranes from sulfonated multiarm star block copolymer and its sulfonated poly(phenylene oxide) (SPPO) blends were prepared by solution casting method. All of the multiarm star block ionomers were readily soluble in N,N-dimethyl acetamide. The influence of star functionality and ion exchange capacity (IEC) of star ionomers on the flexibility and the proton conductivity of ionomer membranes were examined. 6-arm star block copolymer ionomer membrane with 1.00 mmol g−1 IEC exhibited conductivity (19.37 mS cm−1) higher than that of SPPO with 1.34 mmol g−1 IEC (3.82 mS cm−1) measured at 80 °C and relative humidity of 100%. The morphology of dry membranes was investigated by scanning electron microscopy (SEM). This work showed that it is possible to tailor and prepare proton exchange membrane with well-defined architecture by employing star block copolymers with a sulfonated core bearing hydrophobic fluorinated periphery.

Related Literature

Tunable oligo-histidine self-assembled monolayer junction and charge transport by a pH modulated assembly

Baili Li, Lixian Tian, Xuehao He, Xuan Ji, Hira Khalid, Chong Yue, Qinggang Liu, Xi Yu, Shengbin Lei, Wenping Hu

2019-11-11 Paper

DOI: 10.1039/C9CP04695J

On the transition from partial wetting to complete wetting of methanol on graphite

Luisa Prasetyo, Toshihide Horikawa, Naoki Takashima, D. D. Do, D. Nicholson

2019-11-18 Paper

DOI: 10.1039/C9CP05118J

MOLC. A reversible coarse grained approach using anisotropic beads for the modelling of organic functional materials

Matteo Ricci, Otello Maria Roscioni, Lara Querciagrossa, Claudio Zannoni

2019-11-21 Paper

DOI: 10.1039/C9CP04120F

Site-selective-induced isomerization of formamide

S. Oberli, J. González-Vázquez, E. Rodríguez-Perelló, M. Sodupe, A. Picón

2019-11-04 Paper

DOI: 10.1039/C9CP04441H

Structural peculiarities of keto-carotenoids in water-soluble proteins revealed by simulation of linear absorption

Roman Y. Pishchalnikov, Igor A. Yaroshevich, Tatiana A. Slastnikova, Aleksandr A. Ashikhmin, Alexey V. Stepanov, Ekaterina A. Slutskaya, Thomas Friedrich

2019-11-05 Paper

DOI: 10.1039/C9CP04508B

Inside back cover

Cover

DOI: 10.1039/C9CP90294E

Computational analysis of the far infrared spectral region of various deuterated varieties of ethylene glycol

Rahma Boussessi, María Luisa Senent

2020-09-28 Paper

DOI: 10.1039/D0CP03315D

Contents list

Front/Back Matter

DOI: 10.1039/D0CP90248A

You might also like

Compound Q&A

What are the main uses of (5-Sulfamoyl-3-pyridinyl)boronic acid (CAS: 951233-61-7)?

(5-Sulfamoyl-3-pyridinyl)boronic acid is primarily used in chemical synthesis, p...

951233-61-7(5-Sulfamoyl-3-pyrid...
Compound Q&A

How is Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate (CAS: 1942858-50-5) typically synthesized?

Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate is typically synthesized via est...

1942858-50-5Benzyl 2-methyl-2-(m...
Compound Q&A

What precautions should be taken when handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0)?

When handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0), it is important to use p...

209353-22-08-Fluoroquinolin-6-o...
Compound Q&A

What are the physical and chemical properties of 1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2)?

1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2) is a crystalline c...

129316-09-21,3-Dibromo-5-(2-met...
Compound Q&A

What industries use Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxylate (CAS: 174726-87-5)?

Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carbox...

174726-87-5Ethyl 7-chloro-4-oxo...
Compound Q&A

What precautions should be taken when handling Delta-7-Avenasterol (CAS: 23290-26-8)?

When handling Delta-7-Avenasterol (CAS: 23290-26-8), it is important to wear app...

23290-26-8Delta-7-Avenasterol
872992-20-6N-({(5R)-3-[3-Fluoro...
Compound Q&A

What precautions should be taken when handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylate (CAS: 79099-00-6)?

When handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylat...

79099-00-62-Methyl-2-propanyl ...
Compound Q&A

What is N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7)?

N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7) is a organic compou...

65542-24-7N-Methyl-4-chloroben...
Compound Q&A

Is [2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) safe?

[2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) is generally considered safe...

27306-90-7[2-(Dodecyloxy)ethox...

Source Journal

Polymer Chemistry

Polymer Chemistry
CiteScore: 8.6
Self-citation Rate: 7.3%
Articles per Year: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.