UCST-Type Thermoresponsive Polymers in Synthetic Lubricating Oil Polyalphaolefin (PAO)
Abstract
Here, this article reports a family of UCST-type thermoresponsive polymers, poly(alkyl methacrylate)s with an appropriate alkyl pendant length, in an industrially important non-volatile organic liquid polyalphaolefin (PAO). The cloud point (CP) can be readily tuned over a wide temperature range by changing the alkyl pendant length; at a concentration of 1 wt% and similar polymer molecular weights, the CP varies linearly with the (average) number of carbon atoms in the alkyl pendant. PAO solutions of ABA triblock copolymers, composed of a PAO-philic middle block and thermoresponsive outer blocks with appropriate block lengths, undergo thermoreversible sol-gel transitions at sufficiently high concentrations. The discovery of thermoresponsive polymers in PAO makes it possible to explore new applications by utilizing PAO’s unique characteristics such as thermal stability, non-volatility, superior lubrication properties, etc. Lastly, two examples are presented: thermoresponsive physical gels for control of optical transmittance and injectable gel lubricants.
- Authors:
-
- Univ. of Tennessee, Knoxville, TN (United States). Department of Chemistry
- Publication Date:
- Research Org.:
- Univ. of Tennessee, Knoxville, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1430641
- Grant/Contract Number:
- EE0006925
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Macromolecules
- Additional Journal Information:
- Journal Volume: 51; Journal Issue: 5; Journal ID: ISSN 0024-9297
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; PAO; gel lubricant
Citation Formats
Fu, Wenxin, Bai, Wei, Jiang, Sisi, Seymour, Bryan T., and Zhao, Bin. UCST-Type Thermoresponsive Polymers in Synthetic Lubricating Oil Polyalphaolefin (PAO). United States: N. p., 2018.
Web. doi:10.1021/acs.macromol.7b02755.
Fu, Wenxin, Bai, Wei, Jiang, Sisi, Seymour, Bryan T., & Zhao, Bin. UCST-Type Thermoresponsive Polymers in Synthetic Lubricating Oil Polyalphaolefin (PAO). United States. doi:10.1021/acs.macromol.7b02755.
Fu, Wenxin, Bai, Wei, Jiang, Sisi, Seymour, Bryan T., and Zhao, Bin. Tue .
"UCST-Type Thermoresponsive Polymers in Synthetic Lubricating Oil Polyalphaolefin (PAO)". United States. doi:10.1021/acs.macromol.7b02755. https://www.osti.gov/servlets/purl/1430641.
@article{osti_1430641,
title = {UCST-Type Thermoresponsive Polymers in Synthetic Lubricating Oil Polyalphaolefin (PAO)},
author = {Fu, Wenxin and Bai, Wei and Jiang, Sisi and Seymour, Bryan T. and Zhao, Bin},
abstractNote = {Here, this article reports a family of UCST-type thermoresponsive polymers, poly(alkyl methacrylate)s with an appropriate alkyl pendant length, in an industrially important non-volatile organic liquid polyalphaolefin (PAO). The cloud point (CP) can be readily tuned over a wide temperature range by changing the alkyl pendant length; at a concentration of 1 wt% and similar polymer molecular weights, the CP varies linearly with the (average) number of carbon atoms in the alkyl pendant. PAO solutions of ABA triblock copolymers, composed of a PAO-philic middle block and thermoresponsive outer blocks with appropriate block lengths, undergo thermoreversible sol-gel transitions at sufficiently high concentrations. The discovery of thermoresponsive polymers in PAO makes it possible to explore new applications by utilizing PAO’s unique characteristics such as thermal stability, non-volatility, superior lubrication properties, etc. Lastly, two examples are presented: thermoresponsive physical gels for control of optical transmittance and injectable gel lubricants.},
doi = {10.1021/acs.macromol.7b02755},
journal = {Macromolecules},
number = 5,
volume = 51,
place = {United States},
year = {2018},
month = {2}
}
Web of Science
Figures / Tables:

Works referencing / citing this record:
Rheological Study on the Thermoreversible Gelation of Stereo-Controlled Poly(N-Isopropylacrylamide) in an Imidazolium Ionic Liquid
journal, May 2019
- Yan, Zhi-Chao; Biswas, Chandra Sekhar; Stadler, Florian J.
- Polymers, Vol. 11, Issue 5
Rheological Study on the Thermoreversible Gelation of Stereo-Controlled Poly(N-Isopropylacrylamide) in an Imidazolium Ionic Liquid
journal, May 2019
- Yan, Zhi-Chao; Biswas, Chandra Sekhar; Stadler, Florian J.
- Polymers, Vol. 11, Issue 5
Zwitterionic poly(sulfobetaine methacrylate)s in water: from upper critical solution temperature (UCST) to lower critical solution temperature (LCST) with increasing length of one alkyl substituent on the nitrogen atom
journal, January 2018
- Wang, Ning; Seymour, Bryan T.; Lewoczko, Evan M.
- Polymer Chemistry, Vol. 9, Issue 43
Figures / Tables found in this record: