51
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Han X, Liang X, Cai L, He A, Nie H. Amphiphilic Janus nanosheets by grafting reactive rubber brushes for reinforced rubber materials. Polym Chem 2019. [DOI: 10.1039/c9py00863b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An amphiphilic Janus nanosheet with different reactive rubber brushes on two opposite sides can simultaneously strengthen and toughen rubber blends.
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Affiliation(s)
- Xiao Han
- Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization
- Key Laboratory of Rubber-Plastics (Ministry of Education)
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Xincheng Liang
- Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization
- Key Laboratory of Rubber-Plastics (Ministry of Education)
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Lei Cai
- Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization
- Key Laboratory of Rubber-Plastics (Ministry of Education)
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Aihua He
- Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization
- Key Laboratory of Rubber-Plastics (Ministry of Education)
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Huarong Nie
- Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization
- Key Laboratory of Rubber-Plastics (Ministry of Education)
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
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52
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Salehiyan R, Ray SS, Stadler FJ, Ojijo V. Rheology⁻Microstructure Relationships in Melt-Processed Polylactide/Poly(vinylidene Fluoride) Blends. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2450. [PMID: 30513955 PMCID: PMC6317166 DOI: 10.3390/ma11122450] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/05/2018] [Accepted: 11/07/2018] [Indexed: 11/16/2022]
Abstract
In this study, small amplitude oscillatory shear tests are applied to investigate the rheological responses of polylactide/poly(vinylidene fluoride) (PLA/PVDF) blends and to correlate their viscoelastic properties with the morphological evolutions during processing. Although the analysis of the elastic moduli reveals some changes as a function of blend composition and processing time, the weighted relaxation spectra are shown to be more useful in detecting changes. The analysis demonstrates that when PVDF, i.e., the more viscous phase, is the matrix, the blend relaxes cooperatively and only a single relaxation peak is observed. By contrast, blends with highly concentrated morphologies do not fully relax, showing instead an upward increasing trend at longer times. This outcome is attributed to the broad distribution of highly concentrated droplets with a high probability of droplet⁻droplet contacts. Dynamic mechanical analysis (DMA) reveals that crystalline segmental motions attributed to the α-relaxation of PVDF at around 100 °C are restricted by the highly concentrated morphology of the 50/50 PLA/PVDF blend processed for 10 min. Relaxation analyses of the blends via dynamic oscillatory shear tests and DMA are shown to be powerful tools for investigating small microstructural changes in immiscible polymer blends.
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Affiliation(s)
- Reza Salehiyan
- DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa.
| | - Suprakas Sinha Ray
- DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa.
- Department of Applied Chemistry, University of Johannesburg, Doorfontein, Johannesburg 2028, South Africa.
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guandong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518055, China.
| | - Vincent Ojijo
- DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa.
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53
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Huang X, Zhou H, Huang Y, Jiang H, Yang N, Shahzad SA, Meng L, Yu C. Silver nanoparticles decorated and tetraphenylethene probe doped silica nanoparticles: A colorimetric and fluorometric sensor for sensitive and selective detection and intracellular imaging of hydrogen peroxide. Biosens Bioelectron 2018; 121:236-242. [DOI: 10.1016/j.bios.2018.09.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/29/2018] [Accepted: 09/06/2018] [Indexed: 01/26/2023]
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54
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You W, Yu W. Onset Reduction and Stabilization of Cocontinuous Morphology in Immiscible Polymer Blends by Snowmanlike Janus Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11092-11100. [PMID: 30149721 DOI: 10.1021/acs.langmuir.8b02503] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Interfacial jamming of monolayer nanoparticles is often required to kinetically arrest the cocontinuous morphology, which is not in favor of achieving high efficiency at low particle contents. In this paper, we find that the shape asymmetry of the snowmanlike Janus particles (JPs) has significant influence on the cocontinuous morphology of polymer blends under the melt-mixing process. The addition of 0.9 vol % snowmanlike JPs can almost have the onset concentration of cocontinuity in immiscible blends, which is much lower than the apparent interfacial jamming concentration. In addition, JPs show superior ability to stabilize the continuous morphology during annealing at high temperatures. The interfacial activity of asymmetric JPs is due to the decrease in the radius of the jamming curvature in the interfacial region as the shape asymmetry of the snowmanlike JPs increases. This result implies a general strategy to prepare Janus nanoparticles for a highly effective interfacial modification agent at low contents, which can induce the dispersed-phase continuity and suppress the coarsening of cocontinuous morphology simultaneously.
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Affiliation(s)
- Wei You
- Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Wei Yu
- Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
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55
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Yuan W, Wang F, Chen Z, Gao C, Liu P, Ding Y, Zhang S, Yang M. Efficient grafting of polypropylene onto silica nanoparticles and the properties of PP/PP-g-SiO2 nanocomposites. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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56
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Ding Y, Feng W, Lu B, Wang P, Wang G, Ji J. PLA-PEG-PLA tri-block copolymers: Effective compatibilizers for promotion of the interfacial structure and mechanical properties of PLA/PBAT blends. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.037] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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57
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Zhao X, Wang H, Fu Z, Li Y. Enhanced Interfacial Adhesion by Reactive Carbon Nanotubes: New Route to High-Performance Immiscible Polymer Blend Nanocomposites with Simultaneously Enhanced Toughness, Tensile Strength, and Electrical Conductivity. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8411-8416. [PMID: 29488745 DOI: 10.1021/acsami.8b01704] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Physically anchoring carbon nanotubes (CNTs) onto the interface of immiscible polymer blends has been extensively reported; however, enhancement of physical properties of the blends has seldom been achieved. Herein, we used CNTs with reactive epoxide groups and long poly(methyl methacrylate) (PMMA) tails as a thermodynamic compatibilizer for immiscible poly vinylidene fluoride/poly l-lactide (PVDF/PLLA) blends. The CNTs acted as an efficient compatibilizer and bridged the two phases through physical entanglement and chemical reaction. The sea-island structure of the blend transformed into a bicontinuous structure for CNT contents greater than 3 wt %. The mechanical properties, including ductility and tensile strength, thermal properties, and electrical conductivities were all enhanced by the CNTs compatibilizer. This strategy thermodynamically compatibilized by reactive nanofillers paves the way for advanced blend nanocomposites.
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Affiliation(s)
- Xuewen Zhao
- College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , No. 16 Xuelin Rd. , Hangzhou 310036 , People's Republic of China
| | - Hengti Wang
- College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , No. 16 Xuelin Rd. , Hangzhou 310036 , People's Republic of China
| | - Zhiang Fu
- College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , No. 16 Xuelin Rd. , Hangzhou 310036 , People's Republic of China
| | - Yongjin Li
- College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , No. 16 Xuelin Rd. , Hangzhou 310036 , People's Republic of China
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58
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Synthesis of Janus POSS star polymer and exploring its compatibilization behavior for PLLA/PCL polymer blends. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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59
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Fu Z, Wang H, Zhao X, Horiuchi S, Li Y. Immiscible polymer blends compatibilized with reactive hybrid nanoparticles: Morphologies and properties. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.11.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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60
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Wang H, Yang X, Fu Z, Zhao X, Li Y, Li J. Rheology of Nanosilica-Compatibilized Immiscible Polymer Blends: Formation of a “Heterogeneous Network” Facilitated by Interfacially Anchored Hybrid Nanosilica. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02143] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hengti Wang
- College
of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, P. R. China
- CAS
Center for Excellent on TMRS Energy System, Shanghai Institute of
Applied Physics, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xin Yang
- College
of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, P. R. China
| | - Zhiang Fu
- College
of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, P. R. China
| | - Xuewen Zhao
- College
of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, P. R. China
| | - Yongjin Li
- College
of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, P. R. China
| | - Jingye Li
- CAS
Center for Excellent on TMRS Energy System, Shanghai Institute of
Applied Physics, Chinese Academy of Sciences, Shanghai, P. R. China
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61
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Deng H, Fu Q. Recent Progress on the Confinement, Assembly, and Relaxation of Inorganic Functional Fillers in Polymer Matrix during Processing. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700444] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/16/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Hua Deng
- College of Polymer Science and Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu 610065 P. R. China
| | - Qiang Fu
- College of Polymer Science and Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu 610065 P. R. China
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