CARBOHYDRATE POLYMERS
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2023
·
IF 11.2
Zhiqiang Wang,Pengfei Tang,Shuaishuai Chen,Yuxian Xing,Chuantao Yin,Jiajun Feng,Feng Jiang
With the dramatically increased environmental problems, the rational design of sustainable polymers from renewable feedstocks opens new avenues to reduce the huge pollution impact. The major challenge for sustainable polymers is the decreased mechanical performance compared to that of petroleum-based materials. In this work, fully biobased sustainable elastomers were developed by integrating renewable chitin , lignin, and plant oil into one macromolecule , in which chitin was chosen as the rigid backbone , while a lignin-derived monomer vanillin acrylate (VA) and a plant oil-based monomer lauryl acrylate (LA) were selected as the hard and soft segments for the grafted side chains. A series of Chitin- graft -poly(vanillin acrylate- co -lauryl acrylate) (Chitin- g -P(VA- co -LA)) copolymers with varied feed ratios and chitin contents were synthesized by using reversible addition-fragmentation chain transfer (RAFT) polymerization as an effective grafting strategy. In addition, a dynamic cross-linked network was incorporated via Schiff-base reaction to improve the macroscopic behavior of such kind of chitin graft elastomers. These sustainable elastomers are mechanically strong and show excellent reprocessablity, as well as outstanding UV-blocking property. This strategy is versatile and can inspire the further development of fully biobased sustainable materials from natural resources .
研究领域:
材料科学
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可持续化学
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生物工程
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产品关联
DOI
PubMed
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Shaowei Li,Yuting Yuan,Liangxiao Zhang,Fei Ma,Peiwu Li
This study was based on QuEChERS cleanup coupled with UHPLC-MS/MS for the determination of γ-oryzanol compounds in vegetable oils. Several parameters of QuEChERS and UHPLC-MS/MS were studied for purification and detection of γ-oryzanol compounds in oil samples. Under the optimized conditions, the whole pretreatment procedure could be accomplished within 10 min without tedious procedure, larger volume of organic solvent and complicated apparatus. The limit of detections and the limit of quantifications for γ-oryzanol compounds were ranging from 0.1-0.3 µg kg −1 and 0.4–1.0 µg kg −1 , respectively. Satisfactory recoveries of all analyts were ranging from 72.2 % to 101.3 %, and the intra-day and inter-day precision were less than 10.6 %. The validation indicated that rice band oil and corn oil were rich in 24-mCAF, CAF, β-SIF, CMF and STF. The QuEChERS-UHPLC-MS/MS simultaneously quantified five γ-oryzanol compounds in lipid matrices and assessed the nutritional and functional substances of vegetable oils.
研究领域:
食品科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
Soft Matter
·
2013
·Vol. 9
·期 23
·5609-5615
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IF 3.909
Zhaoxing Liu,Lei Cao,Chunyan Bao,Shanfeng Dong,Kerong Dai,Linyong Zhu
A novel covalently dexamethasone-conjugated drug release system based on cross-linked vegetable oil (DEX-CVs) was designed and prepared by simple curing reaction of modified vegetable oil and dexamethasone phosphomonoester (DEX-P) without any toxic catalyst and initiator. UV and HPLC analysis confirmed that the dexamethasone (DEX) drug could be released linearly with high purity by adjusting the component ratios. The analysis of the model reaction indicated that DEX-P in the optimized DEX-CV (A4) was mainly covalently conjugated in the cross-linked vegetable oil network by cyclic phosphotriester bond, and the selective hydrolysis induced the pure release of dexamethasone drug. Finally, the low cytotoxicity and successful osteogenic differentiation effect of A4 on human bone marrow mesenchymal stem cells (hBMSCs) was corroborated by the detection of MTT analysis, ALP activity, staining experiments and some gene expressions, which provided the promising applications in drug release areas and bone tissue engineering.
研究领域:
生物材料学
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药物递送系统
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组织工程学
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DOI
高影响因子
FOOD CHEMISTRY
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2019
·
IF 5.399
Ting Shi,MengTing Zhu,XingYu Zhou,Xi Huo,You Long,XiangZhong Zeng,Yi Chen
Proton nuclear magnetic resonance ( 1 H NMR) combined with partial least squares (PLS) was developed for the rapid determination of squalene and sterols (brassicasterol, campesterol, stigmasterol and β-sitosterol) in 119 vegetable oils from 7 different species. The 1 H NMR spectra of these oil samples were correlated to the reference value determined by gas chromatography-mass spectrometry (GC–MS) method by PLS regression, using outlier removal, selection of input X-variables and data pretreatments. Auto-scaling (UV) was chosen as the best pre-processing for the PLS models of stigmasterol, β-sitosterol, and squalene. Pareto variance (Par) was more suitable for the PLS model of brassicasterol. The model for squalene was further improved by a reduced number of variables with variable importance for the projection (VIP) scores technique. The study demonstrated the potential application of NMR coupled with PLS as a rapid and nondestructive technique for the routine analysis of squalene and sterols in vegetable oils.
研究领域:
食品科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
Lubricants
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2018
·Vol. 6
·期 3
·63
·
IF 0
Yingjing Dai,Hong Xu,Jinxiang Dong
Vegetable oil has significant potential as a base oil, and substitute for mineral oil in grease formulation due to its biodegradability, low toxicity and excellent lubrication. This paper studied the development of vegetable oil-based greases with α-Zr(HPO4)2·H2O (α-ZrP) as an additive, exploring base oil influence in tribological behavior. The results demonstrated that the addition of α-ZrP in vegetable-based greases is beneficial to anti-wear property. α-ZrP particles exhibit good performance in anti-wear, friction-reduction and load-carrying capacity, and its tribological performances are better than the normally used molybdenum disulfide and graphite additives. Owing to its superior tribological properties as a vegetable oil-based grease additive, α-ZrP holds great potential for use in environmentally friendly applications in the future.Keywords:anti-wear additive;α-Zr(HPO4)·H2O;vegetable oil;anhydrous calcium grease
研究领域:
材料科学
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润滑工程
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产品关联
DOI
SusMat
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2023
·Vol. 3
·期 3
·320-333
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IF 28.4
Shuangjian Yu,Yeqing Li,Siwu Wu,Zhenghai Tang,Liqun Zhang,Baochun Guo
As a kind of bio-derived feedstock, vegetable oil (VO) shows great potential to replace petroleum-based monomers to develop sustainable polymer materials because of its easy availability, low cost, bio-renewable, and environmentally friendly nature. However, due to the high cross-linking density and amorphous nature, directly cured VOs generally tend to be brittle and weak. To date, it is still difficult to adopt VOs and their derivatives as structural materials to prepare high-performance elastomers. To address this important issue, a multi-scale topology design strategy was proposed in this work. First, topology regulation and functionalization of VO-based networks were realized by managing functional groups proportion during the bulk polymerization of epoxidized soybean oil with dimer fatty acids. Furthermore, a second polymer (SN) network was introduced into the VO-based network as a protective layer via interfacial cross-links. The generated VO-based elastomers (VOEs) exhibit unprecedented comprehensive properties (VO content ≥70 wt.%, T g as low as −24.4°C, toughness up to 6.8 MJ/m 3 ). Besides, the VOEs also exhibit excellent reprocessability and self-healing capability. Overall, this work developed a novel kind of VOEs with significant comprehensive advantages and provided important inspiration for the preparation of high-performance elastomers through multi-scale topology regulation.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
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2011
·Vol. 21
·期 34
·12753-12760
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IF 5.101
Aifang Luo,Xuesong Jiang,Hong Lin,Jie Yin
We demonstrate here a series of hybrid materials based on thiol-contained polyhedral oligomeric silsesquioxane (POSS-OA/SH) and acrylated caster oil (ACO), which can be photo-cured through “thiol-ene” reaction. The fast photo-crosslinking reaction between POSS and ACO was traced by FT-IR, which is insensitive to oxygen gas. Compared with the pure ACO, the hybrid component of POSS-OA/SH and ACO exhibited much faster photo-cured speed upon the exposure of UV-light. The obtained hybrid materials were transparent to visible light and no obvious phase-separation was observed. AFM and SEM demonstrated that POSS nanoparticles were well-dispersed in the ACO matrix without obvious aggregation even if the content of POSS is higher than 60%. The introduction of POSS can decrease the surface energy of the obtained hybrid materials. The thermal stability of the obtained hybrid materials increased with the increase of POSS content. These characteristics gave the obtained hybrid material potential application in coating, and these studies provided a novel alternative approach to prepare the hybrid materials from the renewable source.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
BMC Chemistry
·
2021
·Vol. 15
·期 1
·1-11
·
IF 2.61
Senan Ahmed M.,Yin Binru,Zhang Yaoyao,Nasiru Mustapha M.,Lyu Yong‐Mei,Umair Muhammad,Bhat Javaid A.,Zhang Sicheng,Liu Li
With the increasing demand for antimicrobial agents and the spread of antibiotic resistance in pathogens, the exploitation of plant oils to partly replace antibiotic emerges as an important source of fine chemicals, functional food utility and pharmaceutical industries. This work introduces a novel catalytic method of plant oils hydroxylation by Fe(III) citrate monohydrate (Fe 3+ -cit.)/Na 2 S 2 O 8 catalyst. Methyl (9 Z ,12 Z )-octadecadienoate (ML) was selected as an example of vegetable oils hydroxylation to its hydroxy-conjugated derivatives (CHML) in the presence of a new complex of Fe(II)-species. Methyl 9,12-di-hydroxyoctadecanoate 1 , methyl-9-hydroxyoctadecanoate 2 and methyl (10 E ,12 E )-octadecanoate 3 mixtures is produced under optimized condition with oxygen balloon. The specific hydroxylation activity was lower in the case of using Na 2 S 2 O 8 alone as a catalyst. A chemical reaction has shown the main process converted of plantoils hydroxylation and (+ 16 Da) of OH- attached at the methyl linoleate (ML-OH). HPLC and MALDI-ToF-mass spectrometry were employed for determining the obtained products. It was found that adding oxidizing agents (Na 2 S 2 O 8 ) to Fe 3+ in the MeCN mixture with H 2 O would generate the new complex of Fe(II)-species, which improves the C-H activation. Hence, the present study demonstrated a new functional method for better usage of vegetable oils.Producing conjugated hydroxy-fatty acids/esters with better antipathogenic properties. CHML used in food industry, It has a potential pathway to food safety and packaging process with good advantages, fundamental to microbial resistance. Lastly, our findings showed that biological monitoring of CHML-minimum inhibitory concentration (MIC) inhibited growth of various gram-positive and gram-negative bacteria in vitro study. The produced CHML profiles were comparable to the corresponding to previousstudies and showed improved the inhibition efficiency over the respective kanamycin derivatives.
研究领域:
生物化学
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微生物学
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药理学
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产品关联
DOI
PubMed
高影响因子
ACS Omega
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2020
·
IF 2.87
Jian Li,Qing Wang,Junyu Tao,Beibei Yan,Guanyi Chen
Biomass tar is the bottleneck of biomass gasification, which not only is adverse to energy production but also brings severe environmental issues. A scrubber with vegetable oil is considered as a low-cost but efficient approach for tar removal, but the effects of oil’s properties on different tar absorptions were rarely reported. In this study, canola oil, palm oil, and pure oleic acid and linoleic acid, which are the main compounds of vegetable oils, were employed for absorptive removal of benzene, toluene, and phenol. The degree of unsaturation, average molecular weight, and average chain length of solvents were quantitatively characterized. A series of time and temperature-dependent absorption experiments were conducted, and the relationship between oils’ properties and absorption performances was built. Results showed that pure oleic acid had the biggest absorption capacity for benzene and toluene due to the mono-unsaturated structure. Increasing the average molecular weight and chain length also enhanced tar absorption. Moreover, Grey relative analysis was employed to investigate the influence of each factor on tar absorption. The average molecular weight exerted the most significant influence on tar absorption in the tested temperature range whose comprehensive relevance coefficients reached the highest at 0.9810, 0.7669, and 0.7739 for benzene, toluene, and phenol, respectively. This study puts more attention on the nature of vegetable oils, and we hope to provide useful information for modulating a better oil-based scrubber medium and further enhancing tar absorptive removal.
研究领域:
能源与环境科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2019
·
IF 6.395
Hongran Zhao,Jianxiang Feng,Jin Zhu,Haibin Yu,Yuejun Liu,Pu Shi,Shengpei Wang,Shenggao Liu
3 The greatest challenge of vegetable oils (VOs) used as green lubricants is their oxidation stability. The potential of incorporating sustainable components to VOs as high efficient antioxidant additives can be beneficial to both energy conservation and environment protection. In this paper, bio-based multifunctional additives (BMAs) were specially designed and synthesized with the aim of maximizing VOs’ oxidation stability by combining biophenols (gallic acid, caffeic acid and p-hydroxycinnamic acid) with 4-aminodiphenylamine in one molecular. The BMAs were found to have extraordinary higher thermal stability and free radical scavenging activity than that of commercial antioxidants. BMAs were evaluated as multifunctional additives in VOs. Pressure differential scanning calorimetry (PDSC) indicated that the oxidation induction time (OIT) of rapeseed oil (RO), coconut oil (CO) and epoxy soybean oil (ESO) can be increased correspondingly by about 2.2, 14.0 and 32.0 times with the addition of BMAs. Four ball test showed that bio-based multifunctional additives 3 (BMA3) had the best antiwear activities among three BMAs (18% decrease in RO), better than traditional zinc dialkyl dithiophosphate (ZDDP) in CO and ESO. In a comparison to commercial phenol, arylamine antioxidants and their physical mixtures, BMAs demonstrated superior antioxidant properties with the increase of phenol hydroxyl group, which mostly benefit from the polyphenolic and aryl amine intramolecular synergism.
研究领域:
化学工程
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环境科学
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材料科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Handan Lei,Nan Yao,Saisai Wang,Xinzi Fang,Jiang Wu,Guang Yang,Zan Hua
Plant oils as the most typical and widest available biomass feedstocks have been employed to construct organic coatings. In contrast to the conventional plant oil-based thermoset coatings, it is still challenging to fabricate robust supramolecular plant oil-based coatings with reversible and dynamic noncovalent interactions, overcoming the drawbacks of thermoset coatings. In this work, we have reported a series of strong nucleobase-enhanced plant oil-based coatings with multiple supramolecular interactions such as hydrogen bonding, π-π stacking, hydrophobic and coordination interactions. The nucleobase-functionalized supramolecular plant oil-based coatings display strong adhesion and outstanding environmental tolerance towards different pH conditions, the variation of temperatures, and UV irradiation. In order to optimize the polymerization of the plant oil-based monomer , the radical polymerization of methacrylate-type camellia oil monomer (MCO) was studied to understand the influence of the unsaturated carbon–carbon double bond in the appended long fatty chain on the polymerization of the methacrylate. The stable propagation radicals of methacrylate-type monomer result in the formation of branched plant oil-based polymers with high efficacy. The copolymerization of the plant oil-based and nucleobase-functionalized methacrylates and the supramolecular mixing achieves the maximum adhesion of 9.89 MPa, highlighting the potential of fabricating strong supramolecular plant oil-based coatings.
研究领域:
材料科学
·
化学工程
·
生物化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Chongxiao Ge,Rui Hu,Jingyan Zhu,Jiajing Huang,Cancan Zhang,Yaqiong Zhang,Yuxian Xing,Bin Zhang,Feng Jiang
Developing sustainable elastomers derived from natural resources is crucial to mitigate environmental pollution yet challenging on account of their limited properties. In this work, chitin, lignin, and plant oil were selected as the feedstocks to design renewable bottlebrush copolymer elastomers via homogeneous reversible addition-fragmentation chain transfer (RAFT) polymerization. In such kind of bottlebrush copolymers, chitin serves as the rigid backbone, while the plant oil-derived monomer 4-vinylbenzyl oleate (VBO) and lignin-derived monomer syringaldehyde acrylate (SA) were chosen as the soft and hard segments for the rubbery brushes, respectively. These chitin- graft -poly(4-vinylbenzyl oleate- co -syringaldehyde acrylate) (Chitin- g -P(VBO- co -SA)) bottlebrush elastomers possess tunable mechanical properties and superior UV-shielding performance. To further improve their macroscopic behavior, carbon dots (CDs) were incorporated into the Chitin- g -P(VBO- co -SA) copolymers. The resulting Chitin- g -P(VBO- co -SA)/CD composites exhibit significantly enhanced tensile strength and excellent photothermal conversion ability owing to the introduction of CDs. This robust and convenient strategy can inspire the continuous development of strong and functional sustainable elastomers by combining different natural resources.
研究领域:
材料科学
·
可持续化学
·
高分子化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）