Journal article
Poly(butylene terephthalate)-b-poly(ethylene oxide) alternating multiblock copolymers: Synthesis and application in solid polymer electrolytes
Polymer (Guilford), v 128, pp 188-199
16 Oct 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We presented here the synthesis of poly(butylene terephthalate) (PBT) and poly(ethylene oxide) (PEO) alternating multiblock copolymers (mBCPs), (PBT-b-PEO-b-PBT)n, via a novel cascade polycondensation-coupling ring-opening polymerization (PROP) method. The chemical structure of (PBT-b-PEO-b-PBT)n mBCPs was revealed by 1D and 2D NMR techniques. By blending with lithium bis(trifluoromethane)sulfonamide (up to r ≡ [Li+]/[EO] of 0.20), the mBCP-based solid polymer electrolytes (SPEs) show excellent performance in all-solid-state lithium batteries. Impedance spectroscopy showed that a maximum ionic conductivity, ∼8.2 × 10−4 S/cm at 90 °C, was achieved at r = 0.10 for the mBCP (76 wt.% PEO) SPEs. A high Cd (charge passed through the symmetric cell before short-circuit) of 441 C/cm2 was achieved at the current density of 0.3 mA/cm2 at 90 °C. Because of the facile synthesis, the rich molecular architecture of mBCP, and the high melting point of PBT, these new mBCP SPEs provide a new platform for SPE design.
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•(PBT-b-PEO-b-PBT)n multiblock copolymers (mBCPs) were synthesized using PROP method.•mBCP-based solid polymer electrolytes (SPEs) were fabricated with tunable properties.•The mBPC-based SPEs are promising for all-solid-state lithium battery applications.
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Details
- Title
- Poly(butylene terephthalate)-b-poly(ethylene oxide) alternating multiblock copolymers: Synthesis and application in solid polymer electrolytes
- Creators
- Weichun Huang - Soochow UniversityQiwei Pan - Drexel UniversityHao Qi - Drexel UniversityXiaohong Li - Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, ChinaYingfeng Tu - Soochow UniversityChristopher Y. Li - Drexel University
- Publication Details
- Polymer (Guilford), v 128, pp 188-199
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000413399300021
- Scopus ID
- 2-s2.0-85029617845
- Other Identifier
- 991019168323104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Polymer Science