INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Ruxia Ning,Xichuang Cheng,Fuhou Lei,Jiufang Duan,Kun Wang,Jianxin Jiang
Natural and high-quality biomass-based coating films are considered promising packaging to consumers. However, the poor mechanical properties and weak antimicrobial activity of biomass materials have limited their practical application. A cleaner and low-cost strategy is used to prepare antimicrobial, self-recovery, and biocompatible coating films using tamarind kernel powder (TKP) and chitosan (CS). The TKP protein and chitosan chains were covalently cross-linked with tetrakis(hydroxymethyl)phosphonium chloride (THPC) to form a three-dimensional network based on THPC-amine dynamic bonds, and act as a sacrificial bond. Then, the hydrogen bond forms an interpenetrating network to build a strong multi-network film. Thus, the THPC multi-crosslinking TKP based films showed enhanced stretchable property (increased from 3.23 % to 77.54 %), and self-recovery after 30 min of recovery. Additionally, the film has been found to exhibit low water vapor permeability, low oxygen transmittance rate, and excellent antimicrobial efficiency (maximum inhibition zones: 24.39 mm). Moreover, the prepared films were demonstrated to be biocompatible and non-hemolytic based on cell viability and hemolytic activity assays. The method described herein could broaden the scope of biomass-based materials in the realm of antimicrobial coating films.
研究领域:
高分子材料科学
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食品包装工程
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生物医学材料
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天然高分子化学
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抗菌材料
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可再生资源利用
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
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2019
·Vol. 57
·期 22
·2228-2234
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IF 2.591
Changhong Lin,Dekun Sheng,Xiangdong Liu,Shaobin Xu,Fance Ji,Li Dong,Yan Zhou,Yuming Yang
A dual crosslinked self-healing polyurethane was prepared with robust mechanical properties through the dynamic reversible pyridine-Fe 3+ coordination bonds and Diels–Alder (DA) covalent bonds dual crosslinking strategy. Moreover, the mechanical properties and self-healing ability of polyurethane can be tuned readily by different ratio of the coordination bonds and DA bonds. Under external load, the coordination bonds serve as sacrificial bonds are broken to dissipate energy, the DA bonds can keep the shape of sample. With the coordination bonds participation, the damaged samples can be healed under moderate heating treatment or with the aid of FeCl 3 solution. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019 , 57, 2228–2234
研究领域:
高分子化学
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材料科学
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自修复材料
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功能高分子
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智能材料
✓ 已验证
DOI
高影响因子
Sustainable Materials and Technologies
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2024
·
IF 8.6
Wei Tan,Chunlong Zuo,Yin Tian,Lu Bai,Lina Jiang,Jieyun Zhao,Xiaoyu Liu,Yuanlin Ren,Xiaohui Liu
The white pollution caused by non-degradable plastics poses a serious threat to human society and the environment, thus developing biodegradable material is urgent. In this work, a novel phosphonitrile hybrid metal-polyphenol network was constructed and used for the preparation of flame retardant , UV resistant and antibacterial multifunctional polyvinyl alcohol composite (PVA@HCPD-Ag). The limiting oxygen index (LOI) value of PVA@HCPD-Ag was improved to 33.5%, while the peak heat release rate (PHRR) and total heat release (THR) decreased by 35.62% and 47.76%. Besides, the ultraviolet protection factor (UPF) value of PVA@HCPD-Ag was significantly improved from 4.63 of the original PVA to 482.79, while the tensile strength was increased by 10.23%. Furthermore, the inhibition efficacy of PVA@HCPD-Ag for E. coli and S. aureus was up to 98.12% and 99.99%. This work explored the synergistic flame retardant effect of in-situ reduced Ag 0 and phosphonitrile crosslinked polyphenol network and proposed an advanced strategy for developing high value-added functionalized PVA materials.
研究领域:
高分子材料科学
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功能材料
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纳米复合材料
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生物医用材料
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环境友好材料
✓ 已验证
DOI
高影响因子
Energy & Environmental Materials
·
2022
·Vol. 6
·期 4
·e12568
·
IF 13.443
Kai Chen,Yuxue Sun,Xiaorong Zhang,Jun Liu,Haiming Xie
The self-healing solid polymer electrolytes (SHSPEs) can spontaneously eliminate mechanical damages or micro-cracks generated during the assembly or operation of lithium-ion batteries (LIBs), significantly improving cycling performance and extending service life of LIBs. Here, we report a novel cross-linked network SHSPE (PDDP) containing hydrogen bonds and dynamic disulfide bonds with excellent self-healing properties and non-flammability. The combination of hydrogen bonding between urea groups and the metathesis reaction of dynamic disulfide bonds endows PDDP with rapid self-healing capacity at 28 °C without external stimulation. Furthermore, the addition of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIMTFSI) improves the ionic conductivity (1.13 × 10 −4 S cm −1 at 28 °C) and non-flammability of PDDP. The assembled Li/PDDP/LiFePO 4 cell exhibits excellent cycling performance with a discharge capacity of 137 mA h g −1 after 300 cycles at 0.2 C. More importantly, the self-healed PDDP can recover almost the same ionic conductivity and cycling performance as the original PDDP.
研究领域:
材料科学
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高分子化学
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电化学
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能源存储
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功能材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）