Poly(tetrafluorostyrenephosphonic acid) - polysulfone block copolymers and membranes
(2013) In Journal of Polymer Science. Part A, Polymer Chemistry 51(21). p.4657-4666- Abstract
- A series of ionic ABA triblock copolymers having a central polysulfone (PSU) central block and poly(2,3,5,6,-tetrafluorostyrene-4-phosphonic acid) (PTFSPA) outer blocks with different lengths were prepared and studied as electrolyte membranes. PSU with terminal benzyl chloride groups was used as a bifunctional macroinitiator for the formation of poly(2,3,4,5,6-pentafluorostyrene) (PPFS) blocks by atom transfer radical polymerization (ATRP). Selective and complete phosphonation of the PPFS blocks was achieved via a Michaelis-Arbuzov reaction using tris(trimethylsilyl)phosphite at 170 °C. Copolymer films were cast from solution and subsequently fully hydrolyzed to produce transparent flexible proton conducting PTFSPA-b-PSU-b-PTFSPA membranes... (More)
- A series of ionic ABA triblock copolymers having a central polysulfone (PSU) central block and poly(2,3,5,6,-tetrafluorostyrene-4-phosphonic acid) (PTFSPA) outer blocks with different lengths were prepared and studied as electrolyte membranes. PSU with terminal benzyl chloride groups was used as a bifunctional macroinitiator for the formation of poly(2,3,4,5,6-pentafluorostyrene) (PPFS) blocks by atom transfer radical polymerization (ATRP). Selective and complete phosphonation of the PPFS blocks was achieved via a Michaelis-Arbuzov reaction using tris(trimethylsilyl)phosphite at 170 °C. Copolymer films were cast from solution and subsequently fully hydrolyzed to produce transparent flexible proton conducting PTFSPA-b-PSU-b-PTFSPA membranes with a thermal stability reaching above 270 °C under air, and increasing with the PTFSPA content. Studies of thin copolymer electrolyte membranes by tapping mode atomic force microscopy showed phase separated morphologies with continuous proton conducting PTFSPA nano scale domains. Block copolymer membranes reached a proton conductivity of 0.08 S cm-1 at 120 °C under fully hydrated conditions, and 0.8 mS cm-1 under 50% relative humidity at 80 °C. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3561029
- author
- Shao, Zhecheng LU ; Sannigrahi, Arindam LU and Jannasch, Patric LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- atom transfer radical polymerization (ATRP), polystyrene, ionomers, proton-exchange membrane fuel cells, phosphonation
- in
- Journal of Polymer Science. Part A, Polymer Chemistry
- volume
- 51
- issue
- 21
- pages
- 4657 - 4666
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000325090000021
- scopus:84884823036
- ISSN
- 0887-624X
- DOI
- 10.1002/pola.26887
- language
- English
- LU publication?
- yes
- additional info
- The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2010–2013) under the call ENERGY-2010-10.2-1: Future Emerging Technologies for Energy Applications (FET) under contract 256821 QuasiDry. Article first published online 19 August 2013.
- id
- a24e3e72-976f-402b-a665-3da5e26a3292 (old id 3561029)
- alternative location
- http://onlinelibrary.wiley.com/doi/10.1002/pola.26887/abstract
- date added to LUP
- 2016-04-01 10:15:25
- date last changed
- 2022-02-02 08:03:29
@article{a24e3e72-976f-402b-a665-3da5e26a3292, abstract = {{A series of ionic ABA triblock copolymers having a central polysulfone (PSU) central block and poly(2,3,5,6,-tetrafluorostyrene-4-phosphonic acid) (PTFSPA) outer blocks with different lengths were prepared and studied as electrolyte membranes. PSU with terminal benzyl chloride groups was used as a bifunctional macroinitiator for the formation of poly(2,3,4,5,6-pentafluorostyrene) (PPFS) blocks by atom transfer radical polymerization (ATRP). Selective and complete phosphonation of the PPFS blocks was achieved via a Michaelis-Arbuzov reaction using tris(trimethylsilyl)phosphite at 170 °C. Copolymer films were cast from solution and subsequently fully hydrolyzed to produce transparent flexible proton conducting PTFSPA-b-PSU-b-PTFSPA membranes with a thermal stability reaching above 270 °C under air, and increasing with the PTFSPA content. Studies of thin copolymer electrolyte membranes by tapping mode atomic force microscopy showed phase separated morphologies with continuous proton conducting PTFSPA nano scale domains. Block copolymer membranes reached a proton conductivity of 0.08 S cm-1 at 120 °C under fully hydrated conditions, and 0.8 mS cm-1 under 50% relative humidity at 80 °C.}}, author = {{Shao, Zhecheng and Sannigrahi, Arindam and Jannasch, Patric}}, issn = {{0887-624X}}, keywords = {{atom transfer radical polymerization (ATRP); polystyrene; ionomers; proton-exchange membrane fuel cells; phosphonation}}, language = {{eng}}, number = {{21}}, pages = {{4657--4666}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Journal of Polymer Science. Part A, Polymer Chemistry}}, title = {{Poly(tetrafluorostyrenephosphonic acid) - polysulfone block copolymers and membranes}}, url = {{http://dx.doi.org/10.1002/pola.26887}}, doi = {{10.1002/pola.26887}}, volume = {{51}}, year = {{2013}}, }