1
|
Purwanto NS, Chen Y, Wang T, Torkelson JM. Rapidly synthesized, self-blowing, non-isocyanate Polyurethane network foams with reprocessing to bulk networks via hydroxyurethane dynamic chemistry. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
|
2
|
Yin X, Liu H, Lin R, Liu X, Huang Z, Du J, Gu Y, Lin X, Lin W, Yi G. Synthesis and properties of semicrystalline non‐isocyanate polyurethane with tunable triple shape memory properties. J Appl Polym Sci 2023. [DOI: 10.1002/app.53705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xingshan Yin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Huameng Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Ruijun Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Xiaochun Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Zhiyi Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Jiahao Du
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
| | - Yuxin Gu
- Kinte Material Technology Co., Ltd. Guangdong China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory) Jieyang China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory) Jieyang China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou People's Republic of China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory) Jieyang China
| |
Collapse
|
3
|
Coste G, Negrell C, Caillol S. Cascade (Dithio)Carbonate Ring Opening Reactions for Self-Blowing Polyhydroxythiourethane Foams. Macromol Rapid Commun 2022; 43:e2100833. [PMID: 35065540 DOI: 10.1002/marc.202100833] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/03/2022] [Indexed: 11/07/2022]
Abstract
Polyurethane (PU) foams are very common materials that have found many applications over the years. Their use is constantly improving due to their unique physical properties and easy blowing which does not require the addition of a blowing agent. Greener routes have been explored in the recent years to replace isocyanates. One of the most promising routes is leading to Polyhydroxyurethanes (PHU). However, with PHUs, external blowing agent are usually required to obtain a foam. Thus, our work focuses on PHU foam synthesis using in situ reaction to produce NIPU foam. Hence, the aminolysis of thiocyclic carbonate triggers Pearson reaction between released thiols and cyclic carbonates which serves as a chemical blowing agent. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Guilhem Coste
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Claire Negrell
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | |
Collapse
|
4
|
Tanaka S, Nakajima Y, Ogawa A, Kuragano T, Kon Y, Tamura M, Sato K, Copéret C. DNP NMR Spectroscopy Enabled Direct Characterization of Polystyrene-supported Catalyst Species for Synthesis of Glycidyl Esters by Transesterification. Chem Sci 2022; 13:4490-4497. [PMID: 35656145 PMCID: PMC9019915 DOI: 10.1039/d2sc00274d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/13/2022] [Indexed: 11/23/2022] Open
Abstract
Polymer-supported catalysts have been of great interest in organic syntheses, but have suffered from the difficulty in obtaining direct structural information regarding the catalyst species embedded in the polymer due to the limitations of most analytical methods. Here, we show that dynamic nuclear polarization (DNP)-enhanced solid-state NMR is ideally positioned to characterize the ubiquitous cross-linked polystyrene (PS)-supported catalysts, thus enabling molecular-level understanding and rational development. Ammonium-based catalysts, which show excellent catalytic activity and reusability for the transesterification of methyl esters with glycidol, giving glycidyl esters in high yields, were successfully characterized by DNP 15N NMR spectroscopy at 15N natural abundance. DNP 15N NMR shows in particular that the decomposition of quaternary alkylammonium moieties to tertiary amines was completely suppressed during the catalytic reaction. Furthermore, the dilute ring-opened product derived from glycidol and NO3− was directly characterized by DNP 15N CPMAS and 1H–15N and 1H–13C HETCOR NMR using a 15N enriched (NO3) sample, supporting the view that the transesterification mechanism involves an alkoxide anion derived from an epoxide and NO3−. In addition, the detailed analysis of a used catalyst indicated that the adsorption of products on the cationic center is the major deactivation step in this catalysis. We demonstrated that DNP-enhanced NMR spectroscopy enables the direct and detailed characterization of polymer-supported alkylammonium catalysts.![]()
Collapse
Affiliation(s)
- Shinji Tanaka
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1-5 Zürich 8093 Switzerland
| | - Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Atsuko Ogawa
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Takashi Kuragano
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Masanori Tamura
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Kazuhiko Sato
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1-5 Zürich 8093 Switzerland
| |
Collapse
|
5
|
Liang C, Gracida-Alvarez UR, Gallant ET, Gillis PA, Marques YA, Abramo GP, Hawkins TR, Dunn JB. Material Flows of Polyurethane in the United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:14215-14224. [PMID: 34618441 DOI: 10.1021/acs.est.1c03654] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Today, polyurethanes are effectively not recycled and are made principally from nonrenewable, fossil-fuel-derived resources. This study provides the first high-resolution material flow analysis of polyurethane flows through the U.S. economy, tracking back to fossil fuels and covering polyurethane-relevant raw materials, trade, production, manufacturing, uses, historical stocks, and waste management. According to our analysis, in 2016, 2900 thousand tonnes (kt) of polyurethane were produced in the United States and 920 kt were imported for consumption, 2000 kt entered the postconsumer waste streams, and 390 kt were recycled and returned to the market in the form of carpet underlayment. The domestic production of polyurethane consumed 1100 kt of crude oil and 1100 kt of natural gas. With the developed polyurethane flow map, we point out the limitation of the existing mechanical recycling methods and identify that glycolysis, a chemical recycling method, can be used to recycle the main components of postconsumer polyurethane waste. We also explore how targeting biobased pathways could influence the supply chain and downstream markets of polyurethane and reduce the consumption of fossil fuels and the exposure to toxic precursors in polyurethane production.
Collapse
Affiliation(s)
- Chao Liang
- Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208, United States
| | - Ulises R Gracida-Alvarez
- Systems Assessment Center, Energy Systems Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ethan T Gallant
- Systems Assessment Center, Energy Systems Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Paul A Gillis
- The Dow Chemical Company, Polyurethane R&D, Lake Jackson, Texas 77566, United States
| | - Yuri A Marques
- The Dow Chemical Company, Polyurethane R&D, Lake Jackson, Texas 77566, United States
| | - Graham P Abramo
- The Dow Chemical Company, Core Research and Development, Collegeville, Pennsylvania 19426, United States
| | - Troy R Hawkins
- Systems Assessment Center, Energy Systems Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jennifer B Dunn
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Northwestern-Argonne Institute of Science and Engineering, Evanston, Illinois 60208, United States
| |
Collapse
|
6
|
Coile MW, Harmon RE, Wang G, SriBala G, Broadbelt LJ. Kinetic Monte Carlo Tool for Kinetic Modeling of Linear Step‐Growth Polymerization: Insight into Recycling of Polyurethanes. MACROMOL THEOR SIMUL 2021. [DOI: 10.1002/mats.202100058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Matthew W. Coile
- Department of Chemical and Biological Engineering Northwestern University Evanston IL 60208 USA
| | - Rebecca E. Harmon
- Department of Chemical and Biological Engineering Northwestern University Evanston IL 60208 USA
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Amsterdam 1098 XH The Netherlands
| | - Guanhua Wang
- Department of Chemical and Biological Engineering Northwestern University Evanston IL 60208 USA
| | - Gorugantu SriBala
- Department of Chemical and Biological Engineering Northwestern University Evanston IL 60208 USA
| | - Linda J. Broadbelt
- Department of Chemical and Biological Engineering Northwestern University Evanston IL 60208 USA
| |
Collapse
|