Sökning: (id:"swepub:oai:DiVA.org:ltu-89070") >
Photo-healable ion ...
Photo-healable ion gel with high mechanical property, fatigue resistance and shear resistance using a coumarin group containing diblock copolymer in an ionic liquid
-
- Wang, Lei (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China
-
- Chen, Jing (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China
-
- Sha, Ye (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China
-
visa fler...
-
- Hussain, Imtiaz (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China
-
- Yu, Bo (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China
-
- Wu, Linlin (författare)
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
-
- Shi, Yijun (författare)
- Luleå tekniska universitet,Maskinelement
-
- Gu, Qun (författare)
- Chemistry Department, Edinboro University of Pennsylvania, Edinboro, PA 16444, USA
-
- Luo, Zhenyang (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China; Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, PR China
-
- Ma, Xiaofeng (författare)
- College of Science, Nanjing Forestry University, Nanjing 210037, PR China; Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, PR China
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2022
- 2022
- Engelska.
-
Ingår i: European Polymer Journal. - : Elsevier. - 0014-3057 .- 1873-1945. ; 165
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Ion gels, polymer networks swollen with ionic liquid (IL), are ideal materials for application in flexible electronic devices. It remains a challenge to fabricate an ion gel with photo-healing, high mechanical properties, fatigue resistance and shear resistance. Herein, a well-defined diblock copolymer polystyrene-b-poly(methyl acrylate-r-7-(2′-methacryloyloyloxyethoxy)-4-methylcoumarin) (PS-b-P(DMA-r-MAOEMC), brief name: SMM, PS: IL-phobic segment and P(DMA-r-MAOEMC): IL-philic segment) was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization. For comparison, a random copolymer P(DMA-r-MAOEMC) (MM) also be prepared. In dilute solution, the SMM can form spherical micelles with PS-core surrounded by P(DMA-r-MAOEMC) corona chains in an IL, 1-ethyl-3-methylimidazolium bis(trifluoromethane sulfone)amide ([C2mim][NTf2]). In a suitable polymer concentration, the SMM and MM can form ion gels in [C2mim][NTf2] under 365 nm UV light irradiation through photo-dimerization of coumarin groups in corona MM polymer chains of spherical micelles and photo-dimerization of coumarin groups in MM random polymer chains, respectively. Compared with the MM ion gel, the SMM ion gel has high mechanical properties, shear resistance and relatively high fatigue resistance. Under 254 nm UV light irradiation, photo-induced gel to jammed micelles transition for the SMM ion gel and photo-induced gel to sol transition for the MM ion gel occur due to photo-cleavage of dimer in polymer chains. Photo-induced jammed micelles - gel transition for the SMM ion gel and photo-induced sol - gel transition for the MM ion gel are reversible by alternating 365 nm and 254 nm UV light irradiation, whereby photo-healable materials can be fabricated. Compared to the MM ion gel, the SMM ion gel has high photo-healing efficiency. The electrochemical property of the SMM ion gel can be recovered completely after photo-healing.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Block copolymer
- Coumarin
- Ion gel
- Ionic liquid
- Photo-healing
- Machine Elements
- Maskinelement
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Wang, Lei
-
Chen, Jing
-
Sha, Ye
-
Hussain, Imtiaz
-
Yu, Bo
-
Wu, Linlin
-
visa fler...
-
Shi, Yijun
-
Gu, Qun
-
Luo, Zhenyang
-
Ma, Xiaofeng
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Fysikalisk kemi
- Artiklar i publikationen
-
European Polymer ...
- Av lärosätet
-
Luleå tekniska universitet