1
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Relaxation behavior of polymer thin films: Effects of free surface, buried interface, and geometrical confinement. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101431] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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2
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Wu X, Xu J, Sun W, Hong Y, Zhang C, Zhang L, Wang X. Interfacial Effect in Supported Thin PET Films Covered with a Thin PPO Layer. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00575] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoling Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jianquan Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Weihan Sun
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yongming Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Cuiyun Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Li Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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3
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Li Y, Lin D, Xu J, Zhou X, Zuo B, Tsui OKC, Zhang W, Wang X. Glass transition temperature of single-chain polystyrene particles end-grafted to oxide-coated silicon. J Chem Phys 2020; 152:064904. [PMID: 32061204 DOI: 10.1063/1.5140627] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A method based on the PeakForce QNM atomic force microscopic (AFM) adhesion measurement is employed to investigate the glassy dynamics of polystyrene (PS) single-chain particles end-grafted to SiO2-Si substrates with different diameters, D0, of 3.4 nm-8.8 nm and molar masses, Mn, of 8-123 kg/mol. As temperature was increased, the adhesion force, Fad, experienced by the AFM tip on pulling off the single chains after loading demonstrated a stepwise increase at an elevated temperature, which we identified to be Tg based on previous works. Our result shows that Tg of our grafted single chains increases with Mn in a manner consistent with the Fox-Flory equation, but the coefficient quantifying the Mn dependence of Tg is only (36 ± 6)% the value of bulk PS. In addition, the value of Tg in the Mn → ∞ limit is about 25 °C below the bulk Tg but more than 15 °C above that of (untethered) PS nanoparticles with D0 ≈ 100 nm suspended in a solution. Our findings are consistent with Tg of our single chains being dominated by simultaneous effects of the interfaces, which depress Tg, and end-grafting, which enhances Tg. The latter is believed to exert its influence on the glass transition dynamics by a mechanism reliant on chain connectivity and does not vary with chain length.
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Affiliation(s)
- Yawei Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Decai Lin
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jianquan Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xianjing Zhou
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Biao Zuo
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ophelia K C Tsui
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Wei Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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4
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Shi M, Yang W, Zhang Y, Tan J, Cheng L, Jiao Z, Zhen X. Mechanical and dielectric properties and crystalline behavior of multilayer graphite‐filled polyethylene composites. J Appl Polym Sci 2019. [DOI: 10.1002/app.48131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Meinong Shi
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Weimin Yang
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Youchen Zhang
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Jing Tan
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Lisheng Cheng
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Zhiwei Jiao
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Xiangshi Zhen
- College of Mechanical and Electrical EngineeringBeijing University of Chemical Technology Beijing 100029 People's Republic of China
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5
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A ND, Begam N, Ibrahim M, Chandran S, Padmanabhan V, Sprung M, Basu JK. Viscosity and fragility of confined polymer nanocomposites: a tale of two interfaces. NANOSCALE 2019; 11:8546-8553. [PMID: 30990482 DOI: 10.1039/c8nr10362c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Viscosity and fragility are key parameters determining the processability and thermo-mechanical stability of glassy polymers and polymer nanocomposites (PNCs). In confined polymers, these parameters are largely dominated by the long relaxation times of the polymers adsorbed at the substrate-polymer interface. On the other hand, for polymer nanocomposites, the interface layer (IL) between the nanoparticles and the surrounding matrix chains often control not only the morphology and dispersion but also various parameters like viscosity and glass transition temperature. Confined PNCs, hence, present a unique opportunity to study the interplay of these two independent interfacial effects. Here, we report the results of X-ray scattering based dynamics measurements of PNC thin films, with a two IL width, unraveling the subtle interplay of these two interfaces on the measured viscosity and fragility. Coupled with coarse-grained molecular dynamics (MD) simulations, our experimental results demonstrate that the viscosity of the PNC films increases with both the IL width and the thickness of the polymer layer adsorbed at the substrate interface. However, while both pristine PS and PNCs with a higher IL width become stronger glasses, as estimated by their fragility, the PNC with a lower IL width shows an increase in fragility with increasing confinement. Our results suggest a novel method to control thermo-mechanical properties and stability of PNC coatings by independently controlling the two interfacial effects in athermal glassy PNCs.
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Affiliation(s)
- Nimmi Das A
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India.
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6
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Zhang Y, Woods CN, Alvarez M, Jin Y, Riggleman RA, Fakhraai Z. Effect of substrate interactions on the glass transition and length-scale of correlated dynamics in ultra-thin molecular glass films. J Chem Phys 2018; 149:184902. [PMID: 30441931 DOI: 10.1063/1.5038174] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Interfacial interactions can play an important role in the glass transition temperature (T g ) and relaxation dynamics of ultra-thin glass polymer films. We have recently shown that similar to the polymeric systems in ultra-thin molecular glass films of N, N'-Bis(3-methylphenyl)-N, N'-diphenylbenzidine (TPD), the T g is reduced and dynamics are enhanced. Furthermore, in molecular glass systems, as the film thickness is reduced below ∼30 nm, the dynamics at the two interfaces correlate such that the range of the gradients in the dynamics induced by the free surface narrows compared to thicker films. These observations indicate that the dynamics of the glassy thin films are strongly correlated and cannot be explained by a simple two-layer model consisting of a bulk and a thin interfacial layer with a constant thickness and constant range of dynamical gradients. Here, we investigate the effect of film/substrate interactions on the film dynamics by varying the TPD/substrate interfacial interactions. We show that thin TPD films with thicknesses below ∼60 nm show a smaller extent of T g reduction and enhanced dynamics when supported on a near-neutral substrate (wetting) compared to a weakly interacting (dewetting) substrate. However, the ∼30 nm length scale, where the activation energy significantly reduces from its bulk value as measured by the onset of the glass transition remains unchanged. Coarse-grained molecular dynamics simulation also shows a narrowing in the range of relaxation times once the thickness is sufficiently reduced for the two interfaces to dynamically correlate, consistent with previous work. These results suggest that the length-scale for the correlated dynamics is independent of interfacial interactions and the polymeric nature of the film and may originate from the bulk glass properties.
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Affiliation(s)
- Yue Zhang
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Connor N Woods
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Mauricio Alvarez
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Yi Jin
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Robert A Riggleman
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6315, USA
| | - Zahra Fakhraai
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
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7
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Bae S, Galant O, Diesendruck CE, Silberstein MN. The Effect of Intrachain Cross-Linking on the Thermomechanical Behavior of Bulk Polymers Assembled Solely from Single Chain Polymer Nanoparticles. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Suwon Bae
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Or Galant
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, Israel
| | - Meredith N. Silberstein
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14850, United States
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8
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Qiu X, Zhang Y, Wu H, Yang R, Yang J, Liu R, Liu Y, Zhou Z, Hao T, Nie Y. Blocked crystallization in capped ultrathin polymer films studied by molecular simulations. POLYM INT 2018. [DOI: 10.1002/pi.5549] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xiaoyan Qiu
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Yongqiang Zhang
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Haitao Wu
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Rui Yang
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Jun Yang
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Rongjuan Liu
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Yong Liu
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Zhiping Zhou
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
| | - Tongfan Hao
- Institute of Green Chemistry and Chemical Technology; Jiangsu University; Zhenjiang China
| | - Yijing Nie
- Institute of Polymer Materials, School of Materials Science and Engineering; Jiangsu University; Zhenjiang China
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9
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Xu H, Song Y, Jia E, Zheng Q. Dynamics heterogeneity in silica-filled nitrile butadiene rubber. J Appl Polym Sci 2018. [DOI: 10.1002/app.46223] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Huilong Xu
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yihu Song
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Erwen Jia
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Qiang Zheng
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
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10
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Huang Z, Jiang J, Shi L, Wang X, Xue G, Li L, Shen Z, Zhou D. Dependences of Confining Size and Interfacial Curvature on the Glass Transition of Polydimethylsiloxane in Self-Assembled Block Copolymers. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zijie Huang
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Jing Jiang
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Lingying Shi
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P. R. China
| | - Xiaoliang Wang
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Gi Xue
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Linling Li
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P. R. China
| | - Dongshan Zhou
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering; Key Laboratory of High Performance Polymer Materials and Technology MOE; State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
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11
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Sugimoto S, Inutsuka M, Kawaguchi D, Tanaka K. Reorientation Kinetics of Local Conformation of Polyisoprene at Substrate Interface. ACS Macro Lett 2018; 7:85-89. [PMID: 35610922 DOI: 10.1021/acsmacrolett.7b00927] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The performance of a polymer composite material, in which inorganic fillers are dispersed, is closely related to the aggregation states and dynamics of polymer chains at the interface with the filler. In this study, the local conformation of polyisoprene (PI) at a quartz substrate interface was studied as a model system for the rubber/filler composite material. PI films were prepared from a toluene solution onto quartz substrates by a spin-coating method. Sum-frequency generation spectroscopy revealed that the local conformation of PI chains at the quartz interface depended on the spinning rate. The tilt angle of methyl groups increased with the rotational speed, probably due to the centrifugal force applied to chains and probably also the evaporation rate of the solvent during the solidification process. This result indicates that the interfacial orientation of PI chains can remain even at room temperature, which is 87 K higher than the bulk glass transition temperature (Tgb). The interfacial orientation disappeared at a temperature approximately 120 K higher than Tgb.
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Affiliation(s)
- Shin Sugimoto
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Manabu Inutsuka
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Daisuke Kawaguchi
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Keiji Tanaka
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
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12
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Luo S, Chen Y, Sha Y, Xue G, Zhuravlev E, Schick C, Wang X, Zhou D, Li L. Molecular weight and interfacial effect on the kinetic stabilization of ultrathin polystyrene films. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.11.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Xu J, Liu Z, Lan Y, Zuo B, Wang X, Yang J, Zhang W, Hu W. Mobility Gradient of Poly(ethylene terephthalate) Chains near a Substrate Scaled by the Thickness of the Adsorbed Layer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00922] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jianquan Xu
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhenshan Liu
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Lan
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Biao Zuo
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Juping Yang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wei Zhang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wenbing Hu
- Department
of Polymer Science and Engineering, State Key Lab of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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14
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Xu J, Zhang Y, Zhou H, Hong Y, Zuo B, Wang X, Zhang L. Probing the Utmost Distance of Polymer Dynamics Suppression by a Substrate by Investigating the Diffusion of Fluorinated Tracer-Labeled Polymer Chains. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01158] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jianquan Xu
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yizhi Zhang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Hao Zhou
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yongming Hong
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Biao Zuo
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xinping Wang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Li Zhang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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15
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Koh YP, Simon SL. The glass transition and enthalpy recovery of a single polystyrene ultrathin film using Flash DSC. J Chem Phys 2017; 146:203329. [DOI: 10.1063/1.4979126] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yung P. Koh
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409-3121, USA
| | - Sindee L. Simon
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409-3121, USA
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16
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Zuo B, Liu Y, Liang Y, Kawaguchi D, Tanaka K, Wang X. Glass Transition Behavior in Thin Polymer Films Covered with a Surface Crystalline Layer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02740] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Biao Zuo
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yue Liu
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yongfeng Liang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | | | | | - Xinping Wang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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17
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Zhang C, Li L, Wang X, Xue G. Stabilization of Poly(methyl methacrylate) Nanofibers with Core–Shell Structures Confined in AAO Templates by the Balance between Geometric Curvature, Interfacial Interactions, and Cooling Rate. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02469] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Chen Zhang
- Key Laboratory of High Performance
Polymer Materials and Technology of Ministry of Education, Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, State Key Laboratory of Coordination Chemistry, Nanjing
National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Linling Li
- Key Laboratory of High Performance
Polymer Materials and Technology of Ministry of Education, Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, State Key Laboratory of Coordination Chemistry, Nanjing
National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Xiaoliang Wang
- Key Laboratory of High Performance
Polymer Materials and Technology of Ministry of Education, Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, State Key Laboratory of Coordination Chemistry, Nanjing
National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Gi Xue
- Key Laboratory of High Performance
Polymer Materials and Technology of Ministry of Education, Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, State Key Laboratory of Coordination Chemistry, Nanjing
National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
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18
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Unni AB, Vignaud G, Chapel JP, Giermanska J, Bal JK, Delorme N, Beuvier T, Thomas S, Grohens Y, Gibaud A. Probing the Density Variation of Confined Polymer Thin Films via Simple Model-Independent Nanoparticle Adsorption. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02617] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- A. Beena Unni
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India 686560
| | - G. Vignaud
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - J. P. Chapel
- Centre
de Recherche Paul Pascal (CRPP), UPR 8641, CNRS, F-33600 Pessac, France
- Centre de
Recherche Paul Pascal, Université de Bordeaux, F-33600 Pessac, France
| | - J. Giermanska
- Centre
de Recherche Paul Pascal (CRPP), UPR 8641, CNRS, F-33600 Pessac, France
- Centre de
Recherche Paul Pascal, Université de Bordeaux, F-33600 Pessac, France
| | - J. K. Bal
- Centre
for Research in Nanoscience and Nanotechnology, University of Calcutta, Technology Campus, Block JD2, Sector III, Saltlake
City, Kolkata 700098, India
| | - N. Delorme
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
| | - T. Beuvier
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
| | - S. Thomas
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India 686560
| | - Y. Grohens
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - A. Gibaud
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
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19
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Li X, Zhang C, Sha Y, Li L, Zhou D, Zhang Z, Xue G, Wang X. Cold flow of three-dimensional confined polymer systems. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Kohr E, Karawdeniya BI, Dwyer JR, Gupta A, Euler WB. A comparison of SERS and MEF of rhodamine 6G on a gold substrate. Phys Chem Chem Phys 2017; 19:27074-27080. [DOI: 10.1039/c7cp05569b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multilayer films of rhodamine 6G can act as its own dielectric layer on gold surfaces to enhance emission spectra.
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Affiliation(s)
- Elizabeth Kohr
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| | | | - Jason R. Dwyer
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| | - Anju Gupta
- Department of Chemical Engineering
- Institute Hall
- Rochester Institute of Technology
- Rochester
- USA
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21
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Sha Y, Xu Y, Qi D, Wan Y, Li L, Li H, Wang X, Xue G, Zhou D. Synthesis of Heterotelechelic α,ω-Dye-Labeled Polymer and Energy Transfer between the Chain Ends. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01726] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ye Sha
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Yunlong Xu
- State
Key Laboratory of Pollution Control and Resource Reuse, School of
the Environment, Nanjing University, Nanjing 210046, P. R. China
| | - Dongliang Qi
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Yuanxin Wan
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Linling Li
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Hong Li
- State
Key Laboratory of Pollution Control and Resource Reuse, School of
the Environment, Nanjing University, Nanjing 210046, P. R. China
| | - Xiaoliang Wang
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Gi Xue
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
| | - Dongshan Zhou
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology (Nanjing University), Ministry of Education, State
Key Laboratory of Coordination Chemistry, Nanjing National Laboratory
of Microstructure, Nanjing University, Nanjing 210093, P. R. China
- School
of Physical Science and Technology, Xinjiang Key Laboratory and Phase
Transitions and Microstructures in Condensed Matters, Yili Normal University, Yining 835000, P. R. China
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22
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Sun S, Xu H, Han J, Zhu Y, Zuo B, Wang X, Zhang W. The architecture of the adsorbed layer at the substrate interface determines the glass transition of supported ultrathin polystyrene films. SOFT MATTER 2016; 12:8348-8358. [PMID: 27714375 DOI: 10.1039/c6sm01500j] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To elucidate the mechanism underlying the effect of polymer/solid interfacial interactions on the dynamics of thin polymer films, the glass transition of thin end-functionalized polystyrene films supported on SiO2-Si, such as proton-terminated PS (PS-H), α,ω-dicarboxy-terminated PS (PS-COOH), and α,ω-dihydroxyl-terminated PS (PS-OH), was investigated. All the PS films exhibited a substantial depression in Tg with decreasing film thickness, while the extent of such depression was strongly dependent on the chemical structure of the end groups and molecular weights. It was found that T - T of the various PS films increased linearly with increasing hads/Rg, in which hads is the thickness of the interfacial adsorbed layer and Rg is the radius of gyration of PS. The hads/Rg is a direct reflection of the macromolecular chain conformation within the adsorbed layer which was affected by its end groups and molecular weights. These findings are in line with the work of Napolitano, and present direct experimental evidence.
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Affiliation(s)
- Shuzheng Sun
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Hao Xu
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Jun Han
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yumei Zhu
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wei Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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23
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Shi M, Zhang Y, Cheng L, Jiao Z, Yang W, Tan J, Ding Y. Interfacial Diffusion and Bonding in Multilayer Polymer Films: A Molecular Dynamics Simulation. J Phys Chem B 2016; 120:10018-29. [PMID: 27556140 DOI: 10.1021/acs.jpcb.6b04471] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
As a stacked form of ultrathin polymer films, multilayer nanostructures are of great interest in various applications. Coarse-grained molecular dynamics simulations were carried out to understand the behaviors of interfacial diffusion and bonding of multilayer polymer films. We found two obvious stages for the interfacial diffusion of polymers in the multilayer film, and it is 3 times faster in the first stage than in the second one due to the evolution of molecular conformations. The polymers near the interfaces have an in-plane mobility much higher than the out-of-plane one. The strength of interfacial bonding has been characterized by the fast tensile stress-strain curve along the normal direction. It shows multiple yielding points for the multilayer polymer films, which is distinct from the tensile behavior of the bulk. The ultimate tensile stress (UTS) and corresponding separating strain, surprisingly, do not necessarily increase with diffusion time. Because of the dramatic molecular rotation and extension during the first stage of interfacial diffusion, the interlayer interpenetration is nonuniformly distributed in the plane of the interface. Such a nonuniform distribution may be one of the reasons for the decrease of the UTS and separating strain.
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Affiliation(s)
- Meinong Shi
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Youchen Zhang
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Lisheng Cheng
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Zhiwei Jiao
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Weimin Yang
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Jing Tan
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Yumei Ding
- College of Mechanical and Electrical Engineering and ‡State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
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24
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25
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Chen L, Torkelson JM. Tuning the Tg-confinement effect in thin polymer films via minute levels of residual surfactant which “cap” the free surface. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.02.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Beena Unni A, Vignaud G, Bal JK, Delorme N, Beuvier T, Thomas S, Grohens Y, Gibaud A. Solvent Assisted Rinsing: Stability/Instability of Ultrathin Polymer Residual Layer. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02435] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- A. Beena Unni
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, 686560 India
| | - G. Vignaud
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - J. K. Bal
- Centre
for Research in Nanoscience and Nanotechnology, University of Calcutta, Technology Campus,
Block JD2, Sector III, Saltlake City, Kolkata 700098, India
| | - N. Delorme
- LUNAM
Université, IMMM, Faculté de Sciences, UMR 6283 CNRS, Université du Maine, Le Mans, Cedex 9, 72000, France
| | - T. Beuvier
- LUNAM
Université, IMMM, Faculté de Sciences, UMR 6283 CNRS, Université du Maine, Le Mans, Cedex 9, 72000, France
| | - S. Thomas
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, 686560 India
| | - Y. Grohens
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - A. Gibaud
- LUNAM
Université, IMMM, Faculté de Sciences, UMR 6283 CNRS, Université du Maine, Le Mans, Cedex 9, 72000, France
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27
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Nie Y, Zhou Z, Hao T, Ye X, Yang W. The Distribution of Glass Transition Temperatures in Ultrathin Polymer Films Controlled by Segment Density or Interfacial Interaction. MACROMOL THEOR SIMUL 2016. [DOI: 10.1002/mats.201500062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yijing Nie
- Institute of Polymer Materials; School of Materials Science and Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 China
| | - Zhiping Zhou
- Institute of Polymer Materials; School of Materials Science and Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 China
| | - Tongfan Hao
- Institute of Polymer Materials; School of Materials Science and Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 China
| | - Xubo Ye
- Institute of Polymer Materials; School of Materials Science and Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 China
| | - Wenming Yang
- Institute of Polymer Materials; School of Materials Science and Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 China
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28
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Dong W, Pina J, Pan Y, Preis E, Seixas de Melo JS, Scherf U. Polycarbazoles and polytriphenylamines showing aggregation-induced emission (AIE) and intramolecular charge transfer (ICT) behavior for the optical detection of nitroaromatic compounds. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.08.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Chen J, Li L, Zhou D, Wang X, Xue G. Effect of geometric curvature on vitrification behavior for polymer nanotubes confined in anodic aluminum oxide templates. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:032306. [PMID: 26465472 DOI: 10.1103/physreve.92.032306] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 06/05/2023]
Abstract
The glass transition behavior of polystyrene (PS) nanotubes confined in cylindrical alumina nanopores was studied as a function of pore diameter (d) and polymer tube thickness (δ). Both the calorimetric glass transition temperature and the microstructure measured by a nonradiative energy transfer method indicated that the polymer nanotube, or concave polymer thin film, exhibited significant differences in vitrification behavior compared to the planar one. A closer interchain proximity and an increased T_{g} were observed for polymer nanotubes with respect to the bulk polymer. T_{g} for polymer nanotubes was primarily dependent on the curvature radius d of the template, while it was less dependent on the thickness δ of the PS tube wall in the range of 11-23 nm. For small nanotubes (d=55nm), the T_{g} increased as high as 18 °C above the bulk value. This vitrified property reverted back to the bulk value when the substrate was chemically removed, which indicated the crucial importance of the interfacial effect imposed by the hard wall with a concave geometry.
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Affiliation(s)
- Jiao Chen
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology (Nanjing University), Ministry of Education, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Linling Li
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology (Nanjing University), Ministry of Education, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Dongshan Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology (Nanjing University), Ministry of Education, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Xiaoliang Wang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology (Nanjing University), Ministry of Education, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Gi Xue
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology (Nanjing University), Ministry of Education, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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30
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31
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Zhang L, Torkelson JM. Influence of initiator fragments as chain ends on the Tg-confinement effect and dewetting of thin films of ultralow molecular weight polymer. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Li L, Chen J, Deng W, Zhang C, Sha Y, Cheng Z, Xue G, Zhou D. Glass Transitions of Poly(methyl methacrylate) Confined in Nanopores: Conversion of Three- and Two-Layer Models. J Phys Chem B 2015; 119:5047-54. [DOI: 10.1021/jp511248q] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Linling Li
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Jiao Chen
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Weijia Deng
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Chen Zhang
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Ye Sha
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Zhen Cheng
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Gi Xue
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Dongshan Zhou
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
- Xinjiang
Laboratory of Phase Transitions and Microstructures in Condensed Matters,
College of Physical Science and Technology, Yili Normal University, Yining 835000, P. R. China
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33
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Bao S, Wu Q, Qin W, Yu Q, Wang J, Liang G, Tang BZ. Sensitive and reliable detection of glass transition of polymers by fluorescent probes based on AIE luminogens. Polym Chem 2015. [DOI: 10.1039/c5py00308c] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sensitive and reliable approach for the detection of the glass transition of polymers using AIE luminogens as fluorescent probes was reported.
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Affiliation(s)
- Suping Bao
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Qihua Wu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Wei Qin
- HKUST-Shenzhen Research Institute
- Nanshan, Shenzhen
- China 518057
- Department of Chemistry
- Institute for Advanced Study
| | - Qiuling Yu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Jing Wang
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Guodong Liang
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute
- Nanshan, Shenzhen
- China 518057
- Department of Chemistry
- Institute for Advanced Study
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