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Bioeconomy - present status and future needs of industrial value chains. N Biotechnol 2020; 60:96-104. [PMID: 33039696 DOI: 10.1016/j.nbt.2020.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 11/24/2022]
Abstract
The necessary reduction of greenhouse gas emissions requires a comprehensive shift from fossil to renewable raw materials. This is accompanied by a fundamental reorganization of the value chains of the energy sectors and large parts of the manufacturing industry. In the long term, bio-based industrial raw materials will be processed preferentially by the chemical industry. In order to use the raw materials as fully as possible, sectors that support cascade use and the recycling of by-products and products after use will gain in importance. These are in particular the waste management and energy sectors, which will be integrated into the circular value chains of the bioeconomy. The industrial realization of these value chains depends essentially on the legal framework conditions, which must be developed further accordingly.
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Sustaining our Passion for Sustainability. POLYM INT 2018. [DOI: 10.1002/pi.5733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ventura M, Dibenedetto A, Aresta M. Heterogeneous catalysts for the selective aerobic oxidation of 5-hydroxymethylfurfural to added value products in water. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.074] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Tao Y, Hasan A, Deeb G, Hu C, Han H. Rheological and Mechanical Behavior of Silk Fibroin Reinforced Waterborne Polyurethane. Polymers (Basel) 2016; 8:E94. [PMID: 30979186 PMCID: PMC6432601 DOI: 10.3390/polym8030094] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 03/01/2016] [Accepted: 03/03/2016] [Indexed: 11/16/2022] Open
Abstract
Waterborne polyurethane (WPU) is a versatile and environment-friendly material with growing applications in both industry and academia. Silk fibroin (SF) is an attractive material known for its structural, biological and hemocompatible properties. The SF reinforced waterborne polyurethane (WPU) is a promising scaffold material for tissue engineering applications. In this work, we report synthesis and characterization of a novel nanocomposite using SF reinforced WPU. The rheological behaviors of WPU and WPU-SF dispersions with different solid contents were investigated with steady shear and dynamic oscillatory tests to evaluate the formation of the cross-linked gel structure. The average particle size and the zeta potential of WPU-SF dispersions with different SF content were examined at 25 °C to investigate the interaction between SF and WPU. FTIR, SEM, TEM and tensile testing were performed to study the effects of SF content on the structural morphology and mechanical properties of the resultant composite films. Experimental results revealed formation of gel network in the WPU dispersions at solid contents more than 17 wt %. The conjugate reaction between the WPU and SF as well as the hydrogen bond between them helped in dispersing the SF powder into the WPU matrix as small aggregates. Addition of SF to the WPU also improved the Young's modulus from 0.30 to 3.91 MPa, tensile strength from 0.56 to 8.94 MPa, and elongation at break from 1067% to 2480%, as SF was increased up to 5 wt %. Thus, significant strengthening and toughening can be achieved by introducing SF powder into the WPU formulations.
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Affiliation(s)
- Yongzhen Tao
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.
- Biomedical Engineering, and Department of Mechanical Engineering, Faculty of Engineering and Architecture, American University of Beirut, Beirut 1107 2020, Lebanon.
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - George Deeb
- Biomedical Engineering, and Department of Mechanical Engineering, Faculty of Engineering and Architecture, American University of Beirut, Beirut 1107 2020, Lebanon.
| | - Changkai Hu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
| | - Huipeng Han
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
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Gaitonde V, Lee K, Kirschbaum K, Sucheck SJ. Bio-Based Bisfuran: Synthesis, Crystal Structure and Low Molecular Weight Amorphous Polyester. Tetrahedron Lett 2014; 55:4141-4145. [PMID: 25045189 DOI: 10.1016/j.tetlet.2014.05.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Discovery of renewable monomer feedstocks for fabrication of polymeric demand is critical in achieving sustainable materials. In the present work we have synthesized bisfuran diol (BFD) monomer from furfural, over four steps. BFD was examined via X-ray crystallography to understand the molecular arrangement in space, hydrogen bonding and packing of the molecules. This data was further used to compare BFD with structurally related Bisphenol A (BPA), and its known derivatives to predict the potential estrogenic or anti-estrogenic activities in BFD. Further, BFD was reacted with succinic acid to generate polyester material, bisfuran polyester (BFPE-1). MALDI characterization of BFPE-1 indicates low molecular weight polyester and thermal analysis reveals amorphous nature of the material.
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Affiliation(s)
- Vishwanath Gaitonde
- Department of Chemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, USA
| | - Kyunghee Lee
- Department of Chemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, USA
| | - Kristin Kirschbaum
- Department of Chemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, USA
| | - Steven J Sucheck
- Department of Chemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, USA
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Davis MC, Guenthner AJ, Sahagun CM, Lamison KR, Reams JT, Mabry JM. Polycyanurate networks from dehydroanethole cyclotrimers: Synthesis and characterization. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.10.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu YD, Choi HJ. Recent progress in smart polymer composite particles in electric and magnetic fields. POLYM INT 2012. [DOI: 10.1002/pi.4441] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ying Dan Liu
- Department of Polymer Science and Engineering; Inha University; Incheon 402-751 Korea
| | - Hyoung Jin Choi
- Department of Polymer Science and Engineering; Inha University; Incheon 402-751 Korea
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Geckeler KE. Polymer International in the year 2012. POLYM INT 2012. [DOI: 10.1002/pi.4445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lebarbé T, Maisonneuve L, Nga Nguyen TH, Gadenne B, Alfos C, Cramail H. Methyl 10-undecenoate as a raw material for the synthesis of renewable semi-crystalline polyesters and poly(ester-amide)s. Polym Chem 2012. [DOI: 10.1039/c2py20394d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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