1
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Wu Z, Liu X, Ma C, Du M, Ding X, Xiang C. Polymer Additives with Gas Barrier and Anti-Aging Properties Made from Asphaltenes via Supercritical Ethanol. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307619. [PMID: 38088526 PMCID: PMC10916603 DOI: 10.1002/advs.202307619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/02/2023] [Indexed: 03/07/2024]
Abstract
Asphaltene is often regarded as an undesirable by-product of petroleum processing, possesses vast reserves with little market value. The typical routes of consuming asphaltene, namely burning and landfilling, pose significant environmental challenges. In this study, low-value asphaltene is converted into high-value ethylated carbon clusters (ECC) using a supercritical ethanol technique. The resulting ECC powder demonstrates promising properties for high density polyethylene (HDPE) composite applications. The effects of incorporating ECC on the mechanical, gas barrier, and anti-aging properties of the composite are investigated. Results show that a 1 wt.% ECC led to a 4.2% and 43.5% increase in tensile strength and elongation at break, a reduction of 45.8% and 30.7% in oxygen and carbon dioxide permeability. Furthermore, ECC exhibits effective UV spectrum absorption and conversion in the wavelength range of 400-600 nm, providing protection against UV spectrum damage to HDPE. The incorporation of ECC not only enhances the properties of polymer composites but also sequesters carbon within the polymer matrix, enabling the valorization of asphaltene while mitigating environmental impact.
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Affiliation(s)
- Zulin Wu
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
| | - Xiangbo Liu
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
| | - Chao Ma
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
| | - Mingjin Du
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
| | - Xiangdong Ding
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
| | - Changsheng Xiang
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University28 West Xianning RoadXi'anShaanxi710049China
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2
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Ming Y, Zhou Z, Hao T. Molecular simulation of crystal nucleation and growth of structurally restricted polymer nanocomposites. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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3
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Zhao XT, Men YF. Thermal Fractionation of Polyolefins: Brief History, New Developments and Future Perspective. POLYMER SCIENCE SERIES A 2022. [DOI: 10.1134/s0965545x22700419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract
For semi-crystalline polymer materials, the difference in chain structure often leads to different physical properties; therefore, in-depth analysis of the chain structure is of great significance. With the continuous development of advanced instruments, many research means have emerged to characterize the structure of molecular chains. Among them, fractionation techniques provide effectively structural information on inter- and intra-molecular comonomer distribution, branching degree, and sequence length, etc. This work briefly presents the history of developments of various classical fractionation means such as temperature-rising elution fractionation, stepwise crystallization and successive self-nucleation and annealing, while focusing on the present and future of their applications.
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4
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Liu X, Cui WZ, Yu W. Interfacial Chain Entanglements Induced Melt Memory Effect in Poly(ε-caprolactone)/Silica Nanocomposites. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2814-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Experimental and Data Fitting Guidelines for the Determination of Polymer Crystallization Kinetics. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2724-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Interfacially-confined polyetherimide tubular membranes for H2, CO2 and N2 separations. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Sangroniz L, Jang YJ, Hillmyer MA, Müller AJ. The role of intermolecular interactions on melt memory and thermal fractionation of semicrystalline polymers. J Chem Phys 2022; 156:144902. [DOI: 10.1063/5.0087782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The origin of melt memory effects associated with semicrystalline polymers and the physical parameters involved in this process have been widely studied in the literature. However, a comprehensive understanding of the role of intermolecular interactions on melt memory is still being developed. For this purpose, we have considered aliphatic polyesters and we have incorporated amide and additional ester groups. Inserting these additional functional groups, the strength of the intermolecular interactions increases widening the melt memory effect. Not only the presence of the functional groups but also the position of these groups in the repeating unit plays a role in the melt memory effect as it impacts the strength of the intermolecular interactions in the crystals. The study of the effect of intermolecular interactions has been extended to successive self-nucleation and annealing thermal fractionation experiments to explore for the first time the role of intermolecular forces on the fractionation capacity of linear polymers. We demonstrated that intermolecular interactions act as intrinsic defects interrupting the crystallizable chain length, thus facilitating thermal fractionation. Overall, this work sheds light on the role of intermolecular interactions on the crystallization behavior of a series of aliphatic polyesters.
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Affiliation(s)
- Leire Sangroniz
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, USA
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Yoon-Jung Jang
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, USA
| | - Marc A. Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, USA
| | - Alejandro J. Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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8
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Jiang G, Wang H, Yu L, Li H. Improving crystallization properties of
PBSA
by blending
PBS
as a polymeric nucleating agent to prepare high‐performance
PPC
/
PBSA
/
AX8900
blown films. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guo Jiang
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Haiting Wang
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Li Yu
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Huili Li
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
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9
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Altorbaq AS, Krauskopf AA, Wen X, Pérez-Camargo RA, Su Y, Wang D, Müller AJ, Kumar SK. Crystallization Kinetics and Nanoparticle Ordering in Semicrystalline Polymer Nanocomposites. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101527] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Liu R, Nie Y, Ming Y, Hao T, Zhou Z. Simulations on polymer nanocomposite crystallization. POLYMER CRYSTALLIZATION 2021. [DOI: 10.1002/pcr2.10214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Rongjuan Liu
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Yijing Nie
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Yongqiang Ming
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Tongfan Hao
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Zhiping Zhou
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
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11
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Song W, Qian L, Yang Y, Zhao Y, Miao Z, Zhang Q. Constructing High-Recognition Protein-Imprinted Materials Using "Specially Designed" Block Macromolecular Chains as Functional Monomers and Crosslinkers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54428-54438. [PMID: 34734527 DOI: 10.1021/acsami.1c18296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of a macromolecularly functional monomer and crosslinker (MFM) to stabilize and imprint a template protein is a new method to construct high-recognition protein-imprinted materials. In this study, for the first time, a "specially designed" block MFM with both "functional capability" and "crosslinking capability" segments was synthesized via reversible addition-fragmentation chain-transfer polymerization and used to fabricate bovine serum albumin (BSA)-imprinted microspheres (SiO2@MPS@MIPs-MFM) by the surface imprinting strategy. Results from circular dichroic spectrum experiments reflected that the block MFM could maintain the natural form of BSA, whereas its corresponding and equivalent micromolecularly functional monomer (MIM) seriously destroyed the secondary structure of proteins. Batch rebinding experiments showed that the maximum adsorption capacity and imprinting factor of SiO2@MPS@MIPs-MFM reached 314.9 mg g-1 and 4.02, which were significantly superior to that of MIM-based imprinted materials. In addition, since the crosslinking capability segments in block MFM involved zwitterionic functional groups with a protein-repelling effect, SiO2@MPS@MIPs-MFM showed better specific rebinding ability than the imprinted material prepared by MFM without this component. Besides, scanning electron microscopy and transmission electron microscopy images showed that the shell thickness of SiO2@MPS@MIPs-MFM was approximately 15 nm, and such a thin imprinted layer ensured its rapid adsorption equilibrium (120 min). As a result, SiO2@MPS@MIPs-MFM revealed fantastic selectivity and recognition ability in a mixed protein solution and could efficiently extract BSA from biological samples of bovine calf serum. The proposal of block MFM enriched the options and designability of monomers in protein imprinting technology, thereby laying a foundation for developing high-performance protein-imprinted materials.
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Affiliation(s)
- Wenqi Song
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
| | - Liwei Qian
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Yuxuan Yang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yuzhen Zhao
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
| | - Zongcheng Miao
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
- School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Qiuyu Zhang
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, PR China
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12
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Hao T, Wang Y, Liu Z, Li J, Shan L, Wang W, Liu J, Tang J. Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2810. [PMID: 34835575 PMCID: PMC8622537 DOI: 10.3390/nano11112810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/16/2021] [Accepted: 10/20/2021] [Indexed: 11/17/2022]
Abstract
Nano-modification of polyester has become a research hotspot due to the growing demand for high-performance polyester. As a functional carrier, silica nanoparticles show large potential in improving crystalline properties, enhancing strength of polyester, and fabricating fluorescent polyester. Herein, we briefly traced the latest literature on synthesis of silica modifiers and the resultant polyester nanocomposites and presented a review. Firstly, we investigated synthesis approaches of silica nanoparticles for modifying polyester including sol-gel and reverse microemulsion technology, and their surface modification methods such as grafting silane coupling agent or polymer. Then, we summarized processing technics of silica-polyester nanocomposites, like physical blending, sol-gel processes, and in situ polymerization. Finally, we explored the application of silica nanoparticles in improving crystalline, mechanical, and fluorescent properties of composite materials. We hope the work provides a guideline for the readers working in the fields of silica nanoparticles as well as modifying polyester.
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Affiliation(s)
- Tian Hao
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
| | - Yao Wang
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Zhipeng Liu
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
| | - Jie Li
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
| | - Liangang Shan
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Wenchao Wang
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
| | - Jixian Liu
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
| | - Jianguo Tang
- National Center of International Research for Hybrid Materials Technology, Institute of Hybrid Materials, National Base of International Science & Technology Cooperation, Qingdao University, Qingdao 266071, China; (T.H.); (Z.L.); (J.L.); (L.S.); (W.W.)
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
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13
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Yagasaki T, Matubayasi N. Crystallization of Polyethylene Brushes and Its Effect on Interactions with Water. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takuma Yagasaki
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Nobuyuki Matubayasi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
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14
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Ahmadi Khoshooei M, Maham Y. Enthalpic perspective on thermodynamic equilibrium of bulk and confined liquids: A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Yue Y, Sha X, Wang F, Gao Y, Zhang L, Wang X, Feng J. The effect of β-nucleating agent on the self-nucleation of isotactic polypropylene. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Issa S, Cousin F, Bonnevide M, Gigmes D, Jestin J, Phan TNT. Poly(ethylene oxide) grafted silica nanoparticles: efficient routes of synthesis with associated colloidal stability. SOFT MATTER 2021; 17:6552-6565. [PMID: 34151921 DOI: 10.1039/d1sm00678a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this study, poly(ethylene oxide) monomethyl ether (MPEO) of molecular weight of 5000, 10 000, and 20 000 g mol-1 were grafted onto colloidal silica nanoparticles (NPs) of a 27.6 nm diameter using two distinct "grafting to" processes. The first method was based on the coupling reaction of epoxide-end capped MPEO with amine-functionalized silica NPs, while the second method was based on the condensation of triethoxysilane-terminated MPEO onto the unmodified silica NPs. The influence of PEO molecular weight, grafting process and grafting conditions (temperature, reactant concentration, reaction time) on the PEO grafting density was fully investigated. Thermogravimetric analysis (TGA) was used to determine the grafting density which ranged from 0.12 chains per nm2 using the first approach to 1.02 chains per nm2 when using the second approach. 29Si CP/MAS NMR characterization indirectly revealed that above a grafting density value of 0.3 PEO chains per nm2, a dendri-graft PEO network was built around the silica surface which was composed of PEO chains directly anchored to the silica surface and those grafted to silica NPs by intermediate of >CH-O-Si- bonds. The colloidal stability of the particles during different steps of the grafting process was characterized by small-angle X-ray scattering (SAXS). We have found that the colloidal systems are stable whatever the achieved grafting density due to the strong repulsions between the NPs, with the strength of repulsion increasing with the molecular weight of the grafted MPEO chains.
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Affiliation(s)
- Sébastien Issa
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France.
| | - Marine Bonnevide
- Manufacture Française des Pneumatiques MICHELIN, Site de Ladoux, 23 place des Carmes Déchaux, F-63 040 Clermont-Ferrand, Cedex 9, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
| | - Jacques Jestin
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France.
| | - Trang N T Phan
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
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17
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Wang M, Li J, Shi G, Liu G, Müller AJ, Wang D. Suppression of the Self-Nucleation Effect of Semicrystalline Polymers by Confinement. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00485] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ming Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guangyu Shi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Alejandro J. Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao 48013, Spain
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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18
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Wen X, Su Y, Li S, Ju W, Wang D. Isothermal Crystallization Kinetics of Poly(ethylene oxide)/Poly(ethylene glycol)- g-silica Nanocomposites. Polymers (Basel) 2021; 13:648. [PMID: 33671619 PMCID: PMC7926868 DOI: 10.3390/polym13040648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022] Open
Abstract
In this work, the crystallization kinetics of poly(ethylene oxide) (PEO) matrix included with poly(ethylene glycol) (PEG) grafted silica (PEG-g-SiO2) nanoparticles and bare SiO2 were systematically investigated by differential scanning calorimetry (DSC) and polarized light optical microscopy (PLOM) method. PEG-g-SiO2 can significantly increase the crystallinity and crystallization temperature of PEO matrix under the non-isothermal crystallization process. Pronounced effects of PEG-g-SiO2 on the crystalline morphology and crystallization rate of PEO were further characterized by employing spherulitic morphological observation and isothermal crystallization kinetics analysis. In contrast to the bare SiO2, PEG-g-SiO2 can be well dispersed in PEO matrix at low P/N (P: Molecular weight of matrix chains, N: Molecular weight of grafted chains), which is a key factor to enhance the primary nucleation rate. In particular, we found that the addition of PEG-g-SiO2 slows the spherulitic growth fronts compared to the neat PEO. It is speculated that the interfacial structure of the grafted PEG plays a key role in the formation of nuclei sites, thus ultimately determines the crystallization behavior of PEO PNCs and enhances the overall crystallization rate of the PEO nanocomposites.
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Affiliation(s)
- Xiangning Wen
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.W.); (S.L.); (W.J.); (D.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunlan Su
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.W.); (S.L.); (W.J.); (D.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaofan Li
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.W.); (S.L.); (W.J.); (D.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weilong Ju
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.W.); (S.L.); (W.J.); (D.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.W.); (S.L.); (W.J.); (D.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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19
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Wen X, Su Y, Liu G, Li S, Müller AJ, Kumar SK, Wang D. Direct Relationship between Dispersion and Crystallization Behavior in Poly(ethylene oxide)/Poly(ethylene glycol)- g-Silica Nanocomposites. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02259] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiangning Wen
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunlan Su
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoming Liu
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaofan Li
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Alejandro J. Müller
- POLYMAT and Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao 48009, Spain
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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20
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Jimenez AM, Altorbaq AS, Müller AJ, Kumar SK. Polymer Crystallization under Confinement by Well-Dispersed Nanoparticles. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01479] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Andrew M. Jimenez
- Department of Chemical Engineering, Columbia University, New York, New York, 10027, United States
| | - Abdullah S. Altorbaq
- Department of Chemical Engineering, Columbia University, New York, New York, 10027, United States
| | - Alejandro J. Müller
- POLYMAT and Faculty of Chemistry, Basque Country University UPV/EHU, Paseo Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Science Foundation, 48011 Bilbao, Spain
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York, 10027, United States
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21
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Rozwadowski T, Jasiurkowska-Delaporte M, Massalska-Arodź M, Yamamura Y, Saito K. Designing the disorder: the kinetics of nonisothermal crystallization of the orientationally disordered crystalline phase in a nematic mesogen. Phys Chem Chem Phys 2020; 22:24236-24248. [PMID: 33084672 DOI: 10.1039/d0cp04002a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article presents the molecular dynamics and solidification behavior of a 2,3-difluoro-4-propylphenyl 2,3-difluoro-4-(4-pentylcyclohexyl)benzoate nematic liquid crystal (5C4FPB3) observed by broadband dielectric spectroscopy (BDS) and differential scanning calorimetry (DSC). Polarized optical microscopy (POM) is also performed to confirm the phase transition temperatures. Our investigation reveals rare crystallization of the orientationally disordered crystal (ODIC) phase from the nematic phase and a glass transition of the crystal at cooling rates higher than 1 K min-1. The deconvolution of the dielectric spectra with derivative techniques is necessary because of the complex molecular dynamics in the crystalline phase. The BDS method enables us to capture the relaxation processes reflecting pre-crystallization molecular movements. The kinetics of nonisothermal crystallization is studied using the Ozawa, Mo, and isoconversional methods. The present studies suggest that the dominant factor of the crystal growth mechanism depends on the cooling rate. Two types of crystallization mechanisms are identified at cooling rates lower and higher than 5 K min-1. We design a diagram with crystallization and glass transition borders against the cooling rates. Estimations show that crystallization of the present compound can be bypassed at cooling rates higher than 78 kK min-1, at which a glass transition of the nematic phase occurs. We show various scenarios of the molecular order and the crystallization mechanism designed based on the process rate.
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Affiliation(s)
- Tomasz Rozwadowski
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. and Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | | | | | - Yasuhisa Yamamura
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
| | - Kazuya Saito
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
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22
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Han Z, Dong Y, Tan Z, Ma J, Yu P. Study on the crystallization behaviour of polyethylene grafted onto carbon nanotubes using molecular dynamics simulation. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1834101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zixuan Han
- School of Computer Science, Jilin Normal University, Siping, People’s Republic of China
| | - Yanying Dong
- School of Computer Science, Jilin Normal University, Siping, People’s Republic of China
| | - Zhenjiang Tan
- School of Computer Science, Jilin Normal University, Siping, People’s Republic of China
- Jilin Provincial Key Laboratory for Numerical Simulation, Jilin Normal University, Siping, People’s Republic of China
| | - Jiaqi Ma
- School of Computer Science, Jilin Normal University, Siping, People’s Republic of China
| | - Ping Yu
- School of Computer Science, Jilin Normal University, Siping, People’s Republic of China
- Jilin Provincial Key Laboratory for Numerical Simulation, Jilin Normal University, Siping, People’s Republic of China
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23
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Zhang S, Ming Y, Wei Y, Hao T, Nie Y, Zhou Z. The effect of grafting density on the crystallization behavior of one‐dimensional confined polymers. J Appl Polym Sci 2020. [DOI: 10.1002/app.50064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuihua Zhang
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Yongqiang Ming
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Yangyang Wei
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Tongfan Hao
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang China
| | - Yijing Nie
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
| | - Zhiping Zhou
- Research School of Polymeric Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang China
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24
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Li X, Dong X, Zhou J, Bao J, Chen S, Lu W, Zhang X, Chen W. Confined crystallization and melting behaviors of poly(ethylene glycol) end‐functionalized by hydrogen bonding groups: Effect of contents for functional units. POLYMER CRYSTALLIZATION 2020. [DOI: 10.1002/pcr2.10158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiang Li
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Xiaolei Dong
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Jiale Zhou
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Jianna Bao
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Shichang Chen
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Wangyang Lu
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Xianming Zhang
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Wenxing Chen
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
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25
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Habel C, Maiz J, Olmedo-Martínez JL, López JV, Breu J, Müller AJ. Competition between nucleation and confinement in the crystallization of poly(ethylene glycol)/ large aspect ratio hectorite nanocomposites. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122734] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Sangroniz L, Sangroniz A, Meabe L, Basterretxea A, Sardon H, Cavallo D, Müller AJ. Chemical Structure Drives Memory Effects in the Crystallization of Homopolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00751] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Leire Sangroniz
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Ainara Sangroniz
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Leire Meabe
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Andere Basterretxea
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Haritz Sardon
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Dario Cavallo
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31, 16146 Genova, Italy
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao 48011, Spain
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27
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Affiliation(s)
- Leire Sangroniz
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Dario Cavallo
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31, 16146 Genova, Italy
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE - Basque Foundation for Science, Bilbao, Spain
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28
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Qi H, Liu X, Henn DM, Mei S, Staub MC, Zhao B, Li CY. Breaking translational symmetry via polymer chain overcrowding in molecular bottlebrush crystallization. Nat Commun 2020; 11:2152. [PMID: 32358513 PMCID: PMC7195396 DOI: 10.1038/s41467-020-15477-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 03/09/2020] [Indexed: 11/09/2022] Open
Abstract
One of the fundamental laws in crystallization is translational symmetry, which accounts for the profound shapes observed in natural mineral crystals and snowflakes. Herein, we report on the spontaneous formation of spherical hollow crystals with broken translational symmetry in crystalline molecular bottlebrush (mBB) polymers. The unique structure is named as mBB crystalsome (mBBC), highlighting its similarity to the classical molecular vesicles. Fluorescence resonance energy transfer (FRET) experiments show that the mBBC formation is driven by local chain overcrowding-induced asymmetric lamella bending, which is further confirmed by correlating crystalsome size with crystallization temperature and mBB's side chain grafting density. Our study unravels a new principle of spontaneous translational symmetry breaking, providing a general route towards designing versatile nanostructures.
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Affiliation(s)
- Hao Qi
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Xiting Liu
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Daniel M Henn
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
| | - Shan Mei
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Mark C Staub
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Bin Zhao
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA.
| | - Christopher Y Li
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA.
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29
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Ma MC, Guo YL. Physical Properties of Polymers Under Soft and Hard Nanoconfinement: A Review. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2380-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Bao J, Dong X, Chen S, Lu W, Zhang X, Chen W. Confined crystallization, melting behavior and morphology in PEG‐
b
‐PLA diblock copolymers: Amorphous versus crystalline PLA. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianna Bao
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
| | - Xiaolei Dong
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
| | - Shichang Chen
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
| | - Wangyang Lu
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
| | - Xianming Zhang
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
| | - Wenxing Chen
- School of Materials Science and EngineeringZhejiang Sci‐Tech University Hangzhou China
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31
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Hao T, Xu D, Ming Y, Zhang S, Wei Y, Zhou Z, Nie Y, Yan D. Correlation between molecular weight and confined crystallization behavior of polymers grafted onto a zero-dimensional filler. CrystEngComm 2020. [DOI: 10.1039/c9ce01606f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, polymer chains of different molecular weights are grafted onto a zero-dimensional filler.
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Affiliation(s)
- Tongfan Hao
- Institute of Green Chemistry and Chemical Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Ding Xu
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yongqiang Ming
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Shuihua Zhang
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yangyang Wei
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zhiping Zhou
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yijing Nie
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Deyue Yan
- School of Chemistry & Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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32
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Su C, Chen Y, Shi G, Li T, Liu G, Müller AJ, Wang D. Crystallization Kinetics of Poly(ethylene oxide) under Confinement in Nanoporous Alumina Studied by in Situ X-ray Scattering and Simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11799-11808. [PMID: 31407905 DOI: 10.1021/acs.langmuir.9b01968] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
While a relatively complete understanding of the nucleation and orientation of polymers under confinement in one-dimensional nanochannels has been achieved, crystallization kinetics investigation of confined polymers is still rare. In this work, we investigated the crystallization kinetics of poly(ethylene oxide) confined in anodic alumina oxide templates with different pore sizes using in situ wide-angle X-ray scattering (WAXS). The crystallization kinetics results were fitted with the Avrami equation. The Avrami index was determined by both "isothermal step crystallization" and in situ WAXS. The crystallization process of polymers under one-dimensional nanopore confinement was simulated by a "one-dimensional lattice model". Based on this model, it is shown that homogeneous nucleation with the simultaneous growth of multiple crystal planes with drastically different growth rates could result in Avrami indexes lower than 1.
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Affiliation(s)
- Cui Su
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yu Chen
- Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Guangyu Shi
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Tang Li
- Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Alejandro J Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry , University of the Basque Country UPV/EHU , Paseo Manuel de Lardizabal 3 , 20018 Donostia-San Sebastián , Spain
- IKERBASQUE, Basque Foundation for Science , 48013 Bilbao , Spain
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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33
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Recovery of Polyphenols from Grape Pomace Using Polyethylene Glycol (PEG)-Grafted Silica Particles and PEG-Assisted Cosolvent Elution. Molecules 2019; 24:molecules24122199. [PMID: 31212800 PMCID: PMC6630576 DOI: 10.3390/molecules24122199] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/04/2019] [Accepted: 06/11/2019] [Indexed: 01/07/2023] Open
Abstract
Adsorption on a functionalized surface can be an effective way of purifying polyphenols from complex plant extracts. Polymeric resins that rely on hydrophobic interactions suffer from low selectivity, weak affinity towards polyphenols, and lack tunability therefore making the purification of polyphenols less efficient. In this study, a purification process for the recovery of polyphenols from grape pomace extract was successfully developed using hydrogen bonding affinity ligands grafted on silica particles and PEG-assisted elution solvents. Bare silica (SiO2) and polyethylene glycol (mPEG)-grafted silica microparticles with molecular weights of 2000 and 5000 were tested to determine their polyphenol binding and release characteristics. Functionalizing the surface of bare silica with mPEG ligands increased the adsorption capacity by 7.1- and 11.4-fold for mPEG-2000 and mPEG-5000 compared to bare silica particles, respectively. This was likely due to the introduction of more polyphenol binding sites with mPEG functionalization. Altering the molecular weight (MW) of mPEG grafted on silica surfaces provided tunability in the adsorption capacity. A complete recovery of polyphenols (~99.9%) from mPEG-grafted silica particles was achieved by utilizing PEG–ethanol or PEG–water cosolvent systems. Recovered polyphenols showed up to ~12-fold antioxidant activity compared to grape pomace extract. This study demonstrates that mPEG-grafted silica particles and elution of polyphenols with PEG cosolvents can potentially be used for large-scale purification of polyphenols from complex plant extracts and simplify the use of polyphenols, as PEG facilitates remarkable solvation and is an ideal medium for the final formulation of polyphenols.
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34
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Wen X, Zhao W, Su Y, Wang D. Interfacial effects on crystallization behavior of polymer nanocomposites with polymer‐grafted nanoparticles. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xiangning Wen
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Weiwei Zhao
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Yunlan Su
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
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