1
|
Meng Q, Tan X, Wu B, Zhang S, Zu Y, Jiang S. Polysaccharide of sunflower (Helianthus annuus L.) stalk pith inhibits cancer proliferation and metastases via TNF-α pathway. Int J Biol Macromol 2024; 272:132873. [PMID: 38838890 DOI: 10.1016/j.ijbiomac.2024.132873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/21/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
The decoctions of sunflower (Helianthus annuus L. HAL) stalk pith have been used to treat advanced cancer, and polysaccharide of sunflower stalk pith (HSPP) was key ingredient of the decoctions. To forage specially structured HSPP with anti-tumor effects and to uncover its mechanisms of anticancer activity, syngeneic mouse model of lung carcinoma metastasis was established and the HSPP was found to contain long-chain fatty acid. Encouragingly, the mean survival of the polysaccharide group (47.3 ± 12.8 d) and its sub-fractions group HSPP-4 (50.7 ± 13.0 d) was significantly increased compared with control group (38.7 ± 12.7 d) or positive control group (41.8 ± 13.4 d), (n = 20, P < 0.01 vs. the control group or positive control group). Furthermore, the HSPP exerted inhibitory effects on the tumor cells' metastasis. Eventually, it is postulated that the polysaccharide could inhibit tumor proliferation and metastasis by reduction of TNF-α from the macrophage.
Collapse
Affiliation(s)
- Qi Meng
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China; College of Chemistry Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China; Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, PR China
| | - Xiao Tan
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China
| | - Bi Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China
| | - Siyan Zhang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China; College of Chemistry Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China; Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, PR China
| | - Yuangang Zu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China.
| | - Shougang Jiang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China; State Engineering Laboratory of Bio-Resources Eco-Utilization, Northeast Forestry University, Harbin, PR China; College of Chemistry Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China; Heilongjiang Provincial Key Laboratory of ecological utilization of Forestry-based active substances, Harbin, PR China.
| |
Collapse
|
2
|
Hou DF, Li PY, Zhang K, Li ML, Feng ZW, Yan C, Liu C, Yang MB. Insight into the Feasibility of Fatty Acyl Chlorides with 10-18 Carbons for the Ball-Milling Synthesis of Thermoplastic Cellulose Esters. Biomacromolecules 2024; 25:1923-1932. [PMID: 38394470 DOI: 10.1021/acs.biomac.3c01354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Fatty acid cellulose esters (FACE) are common cellulose-based thermoplastics, and their thermoplasticity is determined by both the contents and the lengths of the side chains. Herein, various FACE were synthesized by the ball-milling esterification of cellulose and fatty acyl chlorides containing 10-18 carbons, and their structures and thermoplasticity were thoroughly studied. The results showed that FACE with high degrees of substitution (DS) and low melting flow temperatures (Tf) were achieved as the chain lengths of the fatty acyl chlorides were reduced. In particular, a cellulose decanoate with a DS of 1.85 and a Tf of 186 °C was achieved by feeding 3 mol of decanoyl chloride per mole anhydroglucose units of cellulose. However, cellulose stearate (DS = 1.53) synthesized by the same protocols cannot melt even at 250 °C. More interestingly, the fatty acyl chlorides with 10 and 12 carbons resulted in FACE with superior toughness (elongation at break up to 94.4%). In contrast, due to their potential crystallization of the fatty acyl groups with 14-18 carbons, the corresponding FACE showed higher tensile strength and Young's modulus than the others. This study provides some theoretical basis for the mechanochemical synthesis of thermoplastic FACE with designated properties.
Collapse
Affiliation(s)
- De-Fa Hou
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resource, Yunnan Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, P. R. China
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Pei-Yao Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Kai Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Meng-Lei Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Zi-Wei Feng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Cong Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Can Liu
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resource, Yunnan Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| |
Collapse
|
3
|
Sehn T, Meier MAR. Structure-Property Relationships of Short Chain (Mixed) Cellulose Esters Synthesized in a DMSO/TMG/CO 2 Switchable Solvent System. Biomacromolecules 2023; 24:5255-5264. [PMID: 37839074 DOI: 10.1021/acs.biomac.3c00762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Increasing environmental pollution and petroleum resource depletion are important indicators for the necessary and inevitable replacement of fossil-based polymeric materials with more sustainable counterparts. Hence, the development of bio-based materials from renewable resources, such as cellulose, is of great importance. Herein, we introduce a rapid and homogeneous microwave assisted synthesis of high molecular weight (59 kDa ≤ Mn ≤ 116 kDa) short chain (mixed) cellulose esters (CEs) with variable acyl side chain length (2 ≤ C ≤ 8) by using a DMSO/TMG/CO2 switchable solvent system. Accordingly, (mixed) CEs were synthesized by implementing tetramethylguanidine (TMG) into a switchable solvent system (DMSO/TMG/CO2), followed by in-depth structural characterization via IR, 1H NMR, 13C NMR, and SEC. Examination of the structure-property relationships revealed a decrease in the glass transition temperature (177 °C ≤ Tg ≤ 204 °C), an increase in surface hydrophobicity, i.e., water contact angle (WCA) (65° ≤ WCA ≤ 98°), and a decrease of Young's modulus (7.51 MPa ≤ E ≤ 13.6 MPa), with longer alkyl side chains.
Collapse
Affiliation(s)
- Timo Sehn
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Michael A R Meier
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum (MZE), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| |
Collapse
|
4
|
Thabet OA, Al Muzini FS, Atiya AM, Alamry KA, Hussein MA, Hoogenboom R. Hydrophobic carboxymethyl cellulose as a clean-up sorbent in the determination of nitrofuran metabolites in animal-fat samples. RSC Adv 2023; 13:33221-33230. [PMID: 37954418 PMCID: PMC10636933 DOI: 10.1039/d3ra07021b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 11/03/2023] [Indexed: 11/14/2023] Open
Abstract
Hydrophobic carboxymethyl cellulose (CMC) biopolymers were fabricated for the removal of fat from food sample matrices. The hydrophobic CMCs were synthesised via the esterification of CMC with three alcohols with carbon chains of different lengths, methanol, butanol, and octadecanol, in the presence of sulfuric acid. The structure of the three synthesised hydrophobic CMCs was verified using FT-IR, and the physicochemical properties were investigated by TGA, SEM, and X-ray. Characterization confirmed the successful synthesis of the hydrophobic CMCs and that the hydrophobic groups are embedded in the sorbent biopolymer to interact with fat and reduce the fat content of the sample extract. Moreover, the performance of the fabricated hydrophobic CMCs was studied in two applications: fat removal and the determination of nitrofuran (NF) metabolites in fat samples. In the first application, excellent results were observed for fat removal; the highest percentage of fat removed from food sample extracts was 94.2% and the lowest was 88.5%. Successful results were also observed in the determination of NF metabolites in fat samples, as the final extract was clear and pure using the hydrophobic CMCs, while it was turbid for the control sample. In addition, the recovery of four NF metabolites was in the range of 97-117%. In general, the hydrophobic CMCs showed promising and satisfactory results, with CMC-C18 exhibiting the best results. The NF detection method was validated using CMC-C18 in three spiking levels; 0.5, 1.0 and 1.5 μg kg-1. The average recoveries of NF range between 83.3 to 104.3%, and the intra-day precision was determined by coefficient of variation, which was below 10% for all NF. The limit of detection and limit of quantification were between 0.6 to 0.9 and 0.20 to 0.28 μg kg-1 respectively. For linearity, the correlation coefficient (r2) was higher than 0.99 for NF metabolites. Overall, the hydrophobic CMCs can be further developed and safely used as green sorbents in food analysis applications.
Collapse
Affiliation(s)
- Omar A Thabet
- Department of Chemistry, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Saudi Food and Drug Authority Jeddah 22311 Saudi Arabia
| | | | | | - Khalid A Alamry
- Department of Chemistry, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Mahmoud A Hussein
- Department of Chemistry, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University Assiut 71516 Egypt
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Centre of Macromolecular Chemistry (CMaC)Ghent University Krijgslaan 281 S4 9000 Ghent Belgium
| |
Collapse
|
5
|
Lease J, Kawano T, Andou Y. Effect of cellulose materials on the mechanochemical-assisted reaction system with oleic acid. RSC Adv 2023; 13:27558-27567. [PMID: 37720839 PMCID: PMC10502615 DOI: 10.1039/d3ra04715f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023] Open
Abstract
As the most abundant natural polymer in nature, cellulose has become the promising alternative raw material to replace fossil-based polymer. Owing to the presence of innumerable hydroxyl groups, various approaches are employed to render processability of cellulose. Herein, a sustainable esterification strategy, mechanochemical-assisted esterification, was developed to produce cellulose oleate (CO) with only a small amount of solvent. The differences in reactivity between all types of cellulose were elucidated. According to thermal stability analysis, the degradation temperature decreased after modification due to the substitution of the long oleoyl group. High degree of substitution (DS) of CO also possessed glass transition temperature (Tg) based on differential scanning calorimetry (DSC) analysis. Herewith, the processability of cellulose was introduced after modification. In this study, bamboo waste cellulose nanofiber oleate (BW CNF-OA) showed the highest DS (2.28) among the COs. Its higher surface reactivity due to the high surface aspect ratio led to a higher quantity of fatty acids attached to the cellulose. For the mechanical properties, low DS of COs exhibited higher tensile strength values. In a nutshell, this greener approach is more favorable than conventional chemical esterification in terms of reduced solvent dosage and improved sustainability.
Collapse
Affiliation(s)
- Jacqueline Lease
- Department of Life Science and Systems Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
| | - Tessei Kawano
- Department of Life Science and Systems Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
| | - Yoshito Andou
- Department of Life Science and Systems Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
- Collaborative Research Centre for Green Materials on Environmental Technology, Kyushu Institute of Technology 2-4 Hibikino Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
| |
Collapse
|
6
|
Kawano T, Andou Y. Synthesis and mechanical performance of thermoformable cellulose fatty acid esters using natural soap. RSC Adv 2023; 13:24286-24290. [PMID: 37664246 PMCID: PMC10472210 DOI: 10.1039/d3ra03833e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
A cellulose fatty acid ester consisting solely of natural organic compounds is synthesized by heterogeneous esterification. Solid soap, a natural product-based compound, is used as a mixed fatty acid source. The synthesized cellulose ester can be readily processed into a semi-transparent film. Mechanical properties of the cellulose ester are also investigated.
Collapse
Affiliation(s)
- Tessei Kawano
- Department of Life Science and Systems Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
| | - Yoshito Andou
- Department of Life Science and Systems Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku Kitakyushu Fukuoka 808-0196 Japan
- Collaborative Research Centre for Green Materials on Environmental Technology, Kyushu Institute of Technology 1-1 Sensui-chou, Tobata-ku Kitakyushu Fukuoka 804-8550 Japan
| |
Collapse
|
7
|
Simon J, Fliri L, Sapkota J, Ristolainen M, Miller SA, Hummel M, Rosenau T, Potthast A. Reductive Amination of Dialdehyde Cellulose: Access to Renewable Thermoplastics. Biomacromolecules 2023; 24:166-177. [PMID: 36542819 PMCID: PMC9832504 DOI: 10.1021/acs.biomac.2c01022] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reductive amination of dialdehyde cellulose (DAC) with 2-picoline borane was investigated for its applicability in the generation of bioderived thermoplastics. Five primary amines, both aliphatic and aromatic, were introduced to the cellulose backbone. The influences of the side chains on the course of the reaction were examined by various analytical techniques with microcrystalline cellulose as a model compound. The obtained insights were transferred to a 39%-oxidized softwood kraft pulp to study the thermal properties of thereby generated high-molecular-weight thermoplastics. The number-average molecular weights (Mn) of the diamine celluloses, ranging from 60 to 82 kD, were investigated by gel permeation chromatography. The diamine celluloses exhibited glass transition temperatures (Tg) from 71 to 112 °C and were stable at high temperatures. Diamine cellulose generated from aniline and DAC showed the highest conversion, the highest Tg (112 °C), and a narrow molecular weight distribution (D̵ of 1.30).
Collapse
Affiliation(s)
- Jonas Simon
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse
24, Tulln3430, Austria
| | - Lukas Fliri
- Department
of Bioproducts and Biosystems, Aalto University, Aalto0076, Finland
| | - Janak Sapkota
- NE Research
Center, UPM Pulp Research and Innovations, Lappeenranta53200, Finland
| | - Matti Ristolainen
- NE Research
Center, UPM Pulp Research and Innovations, Lappeenranta53200, Finland
| | - Stephen A. Miller
- The
George and Josephine Butler Laboratory for Polymer Research, Department
of Chemistry, University of Florida, Gainesville, Florida32611-7200, United States
| | - Michael Hummel
- Department
of Bioproducts and Biosystems, Aalto University, Aalto0076, Finland
| | - Thomas Rosenau
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse
24, Tulln3430, Austria,
| | - Antje Potthast
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse
24, Tulln3430, Austria,
| |
Collapse
|
8
|
Lease J, Kawano T, Andou Y. Esterification of Cellulose with Long Fatty Acid Chain through Mechanochemical Method. Polymers (Basel) 2021; 13:polym13244397. [PMID: 34960947 PMCID: PMC8705890 DOI: 10.3390/polym13244397] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/03/2021] [Accepted: 12/13/2021] [Indexed: 11/30/2022] Open
Abstract
Mechanochemical reaction, a green synthetic esterification route was utilized to prepare long-chain cellulose esters from microcrystalline cellulose. The influence of reaction conditions such as reaction temperature and time were elucidated. Only low dosage of oleic acid, 1-butyl-3-metylimidazolium acetate, and p-toluenesulfonyl chloride were required. The success of modification reaction was confirmed by Fourier transforms infrared spectroscopy as a new absorbance peak at 1731 cm−1 was observed, which indicated the formation of carbonyl group (C=O). Solid-state nuclear magnetic resonance was also performed to determine the structural property and degree of substitution (DS) of the cellulose oleate. Based on the results, increasing reaction temperature and reaction time promoted the esterification reaction and DS. DS values of cellulose oleates slightly decreased after 12 h reaction time. Besides, X-ray diffraction analysis showed the broadening of the diffraction peaks and thermal stability decreased after esterification. Hence, the findings suggested that grafting of oleic acid’s aliphatic chain onto the cellulose backbone lowered the crystallinity and thermal stability.
Collapse
Affiliation(s)
- Jacqueline Lease
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan; (J.L.); (T.K.)
| | - Tessei Kawano
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan; (J.L.); (T.K.)
| | - Yoshito Andou
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan; (J.L.); (T.K.)
- Collaborative Research Centre for Green Materials on Environmental Technology, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
- Correspondence:
| |
Collapse
|
9
|
Esen E, Hädinger P, Meier MAR. Sustainable Fatty Acid Modification of Cellulose in a CO 2-Based Switchable Solvent and Subsequent Thiol-Ene Modification. Biomacromolecules 2020; 22:586-593. [PMID: 33289549 DOI: 10.1021/acs.biomac.0c01444] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Searching for more sustainable materials as an alternative to petroleum-based products is of increasing interest due to different environmental issues. Cellulose and fatty acids are two very promising candidates for biobased material design. Herein, we report a sustainable synthesis of fatty acid cellulose esters (FACEs) via transesterification of cellulose with methyl-10-undecenoate in a CO2-based switchable solvent system. FACEs with a degree of substitution between 0.70 and 1.97 were synthesized by simple variation of reaction parameters and characterized in detail. Subsequently, a FACE with a degree of substitution (DS) of 0.70 was modified via thiol-ene reaction, demonstrating an efficient and versatile method to tune the structure and properties of the new cellulose derivatives. Films were produced from each sample via solvent casting, and their mechanical properties were examined using tensile tests. Elastic moduli (E) ranging from 90 to 635 MPa and elongations at break between 2 and 23% were observed, depending on the DS of the FACE and the type of thiol employed for the modification. Finally, contact angle measurements confirmed an increase in the surface hydrophobicity (75-91°) for the thiol-ene-modified samples.
Collapse
Affiliation(s)
- Eren Esen
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Pauline Hädinger
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum (MZE), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Michael A R Meier
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany.,Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum (MZE), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| |
Collapse
|
10
|
Brodzka A, Koszelewski D, Ostaszewski R. Dual Activity of Grubbs-Type Catalyst in the Transvinylation of Carboxylic Acids and Ring-Closing Metathesis Reactions. J Org Chem 2020; 85:15305-15313. [PMID: 33196209 PMCID: PMC7735734 DOI: 10.1021/acs.joc.0c02135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Indexed: 11/30/2022]
Abstract
The development of a multifunctional catalyst, which mimics the promiscuity of enzymes, that would catalyze more than one chemical transformation in a single reaction vessel is one of the key points of modern sustainable chemistry. The results of our experiments indicated that Grubbs-type catalysts possess such multitask activity, catalyzing the transvinylation reaction of carboxylic acids without losing their original metathetic activity. This new activity of Grubbs catalysts was evidenced on several examples. It allows us to design a transvinylation/ring-closing metathesis (RCM) cascade reaction leading to the formation of endocyclic enol lactones from unsaturated carboxylic acids in an one-pot procedure. This unique ability of Grubbs catalyst to catalyze multiple mechanically distinct cascade reactions in a chemoselective way offers the new possibility for the synthesis of complex compounds from simple, easily accessible substrates.
Collapse
Affiliation(s)
- Anna Brodzka
- Institute of Organic Chemistry
Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Dominik Koszelewski
- Institute of Organic Chemistry
Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry
Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| |
Collapse
|
11
|
Zhang X, Xiao N, Chen M, Wei Y, Liu C. Functional packaging films originating from hemicelluloses laurate by direct transesterification in ionic liquid. Carbohydr Polym 2020; 229:115336. [DOI: 10.1016/j.carbpol.2019.115336] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/05/2019] [Accepted: 09/14/2019] [Indexed: 01/15/2023]
|
12
|
Willberg-Keyriläinen P, Ropponen J. Evaluation of esterification routes for long chain cellulose esters. Heliyon 2019; 5:e02898. [PMID: 31799468 PMCID: PMC6881692 DOI: 10.1016/j.heliyon.2019.e02898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 10/24/2019] [Accepted: 11/18/2019] [Indexed: 11/11/2022] Open
Abstract
Long chain cellulose esters are internally plasticized bio-based materials, which have good future potential in several applications such as coatings, films and plastics. The long chain cellulose esters with different side chain lengths were synthesized using different esterification methods. When homogeneous esterification was used, the acyl chloride method was the most effective esterification method and cellulose esters prepared using this method have the highest degree of substitution values (DS). In this case, the long chain cellulose esters showed DS values from 0.3 to 1.3 depending on the side chain length of cellulose esters. CDI activation, vinyl transesterification and anhydride routes resulted in somewhat lower DS values. The cellulose was also pretreated with ozone, which decreased cellulose molar mass, and resulted in synthesized cellulose esters having higher DS and better reaction efficiency than untreated cellulose. When heterogeneous esterifications were used, only acyl chloride method seemed to work.
Collapse
Affiliation(s)
| | - Jarmo Ropponen
- VTT Technical Research Centre of Finland Ltd, Tietotie 4E, P.O Box 1000, FI-02044, VTT, Finland
| |
Collapse
|
13
|
Preparation and Properties of Jute Fiber Long-Chain Fatty Acid Esters in Supercritical Carbon Dioxide. MATERIALS 2019; 12:ma12091499. [PMID: 31072007 PMCID: PMC6540052 DOI: 10.3390/ma12091499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/01/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
Abstract
A two-step method involving continuous screw-extrusion steam explosion (CSESE) pretreatment and esterification in supercritical carbon dioxide (scCO2) is used to prepare long-chain fatty acid-modified jute fiber. The weight gain percentage (WG %) of CSESE-pretreated jute laurate (JL) was 110.7% when esterification was carried out in scCO2 at 14 MPa and 100 °C for 2 h. The corresponding WG % was 105.5% when esterification was instead carried out in pyridine at 100 °C for 2 h. Scanning electron microscopy and X-ray diffraction indicated that CSESE pretreatment enhanced the reactivity of jute fiber, with esterification in scCO2 simultaneously occurring on the fibers surface and internal walls. The glass transition temperature of esterified jute was approximately 119 °C, indicating that it could be hot processed over a wide temperature range. The esterified jute had an oil absorption ratio of 17.01 g/g, so it can be used as an oil absorption material.
Collapse
|
14
|
Wang X, Wu M, Zhang B, Zhang Y, Hu C, Shi L, Lv Y, Ran R. Phase-transfer method synthesis hydroxyethyl cellulose lauryl ether. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
15
|
Lomège J, Lapinte V, Negrell C, Robin JJ, Caillol S. Fatty Acid-Based Radically Polymerizable Monomers: From Novel Poly(meth)acrylates to Cutting-Edge Properties. Biomacromolecules 2018; 20:4-26. [PMID: 30273485 DOI: 10.1021/acs.biomac.8b01156] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The increasing price of barrels of oil, global warming, and other environmental problems favor the use of renewable resources to replace the petroleum-based polymers used in various applications. Recently, fatty acids (FAs) and their derivatives have appeared among the most promising candidates to afford novel and innovative bio-based (co)polymers because of their ready availability, their low toxicity, and their high versatility. However, the current literature mostly focused on FA-based polymers prepared by condensation polymerization or oxypolymerization, while only a few works have been devoted to radical polymerization due to the low reactivity of FAs through radical process. Thus, the aim of this Review is to give an overview of (i) the most common synthetic pathways reported in the literature to provide suitable monomers from FAs and their derivatives for radical polymerization, (ii) the available radical processes to afford FA-based (co)polymers, and (iii) the different applications in which FA-based (co)polymers have been used since the past few years.
Collapse
Affiliation(s)
- Juliette Lomège
- Institut Charles Gerhardt Montpellier UMR 5253, Univ Montpellier CNRS ENSCM , Université de Montpellier , CC1702, Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Vincent Lapinte
- Institut Charles Gerhardt Montpellier UMR 5253, Univ Montpellier CNRS ENSCM , Université de Montpellier , CC1702, Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Claire Negrell
- Institut Charles Gerhardt Montpellier UMR 5253, Univ Montpellier CNRS ENSCM , Université de Montpellier , CC1702, Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Jean-Jacques Robin
- Institut Charles Gerhardt Montpellier UMR 5253, Univ Montpellier CNRS ENSCM , Université de Montpellier , CC1702, Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Sylvain Caillol
- Institut Charles Gerhardt Montpellier UMR 5253, Univ Montpellier CNRS ENSCM , Université de Montpellier , CC1702, Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| |
Collapse
|
16
|
Qian YQ, Han N, Bo YW, Tan LL, Zhang LF, Zhang XX. Homogeneous synthesis of cellulose acrylate- g -poly ( n -alkyl acrylate) solid–solid phase change materials via free radical polymerization. Carbohydr Polym 2018; 193:129-136. [DOI: 10.1016/j.carbpol.2018.03.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 02/23/2018] [Accepted: 03/17/2018] [Indexed: 10/17/2022]
|
17
|
Shang Q, Liu C, Hu Y, Jia P, Hu L, Zhou Y. Bio-inspired hydrophobic modification of cellulose nanocrystals with castor oil. Carbohydr Polym 2018; 191:168-175. [DOI: 10.1016/j.carbpol.2018.03.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/03/2018] [Accepted: 03/08/2018] [Indexed: 01/06/2023]
|
18
|
Yu W, Han N, Qian Y, Zhang X, Li W. Effects of Fatty Acid Anhydride on the Structure and Thermal Properties of Cellulose-g-Polyoxyethylene (2) Hexadecyl Ether. Polymers (Basel) 2018; 10:polym10050498. [PMID: 30966532 PMCID: PMC6415507 DOI: 10.3390/polym10050498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/14/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022] Open
Abstract
Cellulose was premodified by short-chain fatty acid anhydrides, such as acetic anhydride (CA), propionic anhydride (CP), and butyric anhydride (CB), followed by grafting of polyoxyethylene (2) hexadecyl ether (E2C16) using toluene-2,4-diisocyanate as a coupling agent. The feeding molar ratio of E2C16 and the anhydroglucose unit (AGU) was fixed at 4:1, and then a series of CA-g-E2C16, CP-g-E2C16, and CB-g-E2C16 copolymers were successfully prepared. The structures and properties of the copolymers were characterized using FTIR (fourier transform infrared spectra), 1H-NMR (Proton nuclear magnetic resonance), DSC (Differential scanning calorimeter), POM (polarized light microscopy), TGA (thermogravimetric analysis) and WAXD (wide-angle X-ray diffraction). It was shown that with the anhydride/AGU ratio increasing, the degree of substitution (DS) value of E2C16 showed a trend of up first and then down. With the carbon chain length increasing, the DS value of E2C16 continuously increases. The phase transition temperature and thermal enthalpy of the copolymers increased with an increasing DS value of E2C16. When the ratio of CB/AGU was 1.5:1, the DS of E2C16 was up to the maximum value of 1.02, and the corresponding melting enthalpy and crystallization enthalpy were 32 J/g and 30 J/g, respectively. The copolymers showed solid–solid phase change behavior. The heat resistant temperature of cellulose-based solid–solid phase change materials was always higher than 270 °C. After the grafting reaction, the crystallinity of E2C16 decreased, while the crystal type was still hexagonal.
Collapse
Affiliation(s)
- Wanyong Yu
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Na Han
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Yongqiang Qian
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Xingxiang Zhang
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Wei Li
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| |
Collapse
|
19
|
Puanglek S, Kimura S, Iwata T. Thermal and mechanical properties of tailor-made unbranched α-1,3-glucan esters with various carboxylic acid chain length. Carbohydr Polym 2017; 169:245-254. [PMID: 28504143 DOI: 10.1016/j.carbpol.2017.04.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/04/2017] [Accepted: 04/08/2017] [Indexed: 10/19/2022]
Abstract
The convenient and environmentally friendly method for in vitro polymerization catalyzed by glucosyltransferase, designated as GtfJ, extracted from recombinant E. Coli was used to synthesize tailor-made α-1,3-glucan (α-1,3-d-glucan) having moderate molecular weight (Mw=2.0×105) and no branches. With the aim to improve thermoplasticity of this polysaccharide, after in vitro synthesis, chemical modification by acylation was selected and then fully substituted α-1,3-glucan esters were successfully obtained via both homogeneous and heterogeneous methods. Thermal degradation temperature of α-1,3-glucan esters was improved after esterification and dependent on neither side chain length nor synthesis methods. DSC curves suggested a presence of crystal structure in α-1,3-glucan acetate, propionate, butyrate, valerate and hexanoate due to detectable melting endotherm, whereas octanoate exhibited amorphous behavior. Tm's of α-1,3-glucan esters were relatively high, more than 200°C, in comparison with commercial plastics. The shorter chain length of acid component, the higher Tm and Tg ester products exhibited. In addition, tensile strength of α-1,3-glucan esters decreased in contrast with elongation at break with an increase in alkyl chain length of an acid component. Thus, crystalline and amorphous α-1,3-glucan esters with adjustable thermal and mechanical properties obtained from this research are promising materials for continuing applied researches and contemplating the future application in bio-based thermoplastic materials.
Collapse
Affiliation(s)
- Sakarin Puanglek
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Satoshi Kimura
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Tadahisa Iwata
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| |
Collapse
|