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Yarysheva A, Rukhlya E, Grokhovskaya T, Dolgova A, Arzhakova OV. Breathable polymeric materials based on high‐density polyethylene prepared by environmental crazing. J Appl Polym Sci 2020. [DOI: 10.1002/app.48567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alena Yarysheva
- Faculty of ChemistryLomonosov Moscow State University 119991 Moscow Russia
| | - Ekaterina Rukhlya
- Faculty of ChemistryLomonosov Moscow State University 119991 Moscow Russia
| | | | - Alla Dolgova
- Faculty of ChemistryLomonosov Moscow State University 119991 Moscow Russia
| | - Olga V. Arzhakova
- Faculty of ChemistryLomonosov Moscow State University 119991 Moscow Russia
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Waterborne epoxy-modified polyurethane-acrylate dispersions with nano-sized core-shell structure particles: synthesis, characterization, and their coating film properties. JOURNAL OF POLYMER ENGINEERING 2017. [DOI: 10.1515/polyeng-2016-0003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Waterborne epoxy-modified polyurethane-acrylate (EPUA) dispersions with nano-sized core-shell structure particles, with polyacrylate (PA) as core and epoxy-modified polyurethane (EPU) as shell, were successfully prepared via a two-step procedure. The waterborne EPU dispersions were first synthesized to serve as seeds, and then the butyl acrylate (BA) and methyl methacrylate (MMA) monomers were introduced into EPU particles to form polymeric core by radical polymerization under the assistance of ultrasonic treatment. Fourier transform infrared (FT-IR) spectroscopy revealed that the epoxy and PA components were successfully incorporated onto the chain of the PU and EPU to form EPU and EPUA, respectively. The transmission electron microscopy (TEM) photograph demonstrated that the EPUA particles have the core-shell structure. The as-prepared EPUA coating films exhibited good thermo-stability and mechanical properties, as revealed by thermogravimetric analysis (TGA) and tensile testing, respectively. The results of potentiodynamic polarization curves and immersion corrosion testing in 5 wt% NaCl aqueous solution both demonstrated that the anticorrosive properties of EPUA mainly depended on the mass content of PA, with the optimized value of 30 wt%.
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Fang Y, Ni Y, Choi B, Leo SY, Gao J, Ge B, Taylor C, Basile V, Jiang P. Chromogenic Photonic Crystals Enabled by Novel Vapor-Responsive Shape-Memory Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:3696-704. [PMID: 25981680 DOI: 10.1002/adma.201500835] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/10/2015] [Indexed: 05/23/2023]
Abstract
A new type of shape-memory polymer (SMP) is developed by integrating scientific principles drawn from two disparate fields: the fast-growing photonic crystal and SMP technologies. This new SMP enables room-temperature operation for the entire shape-memory cycle and instantaneous shape recovery triggered by exposure to a variety of organic vapors.
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Affiliation(s)
- Yin Fang
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Yongliang Ni
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Baeck Choi
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Sin-Yen Leo
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Jian Gao
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Beverly Ge
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Curtis Taylor
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Vito Basile
- ITIA-CNR, Industrial Technologies and Automation Institute, National Council of Research, Via Bassini, 15, 20133, Milano, Italy
| | - Peng Jiang
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA
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Chung SE, Park CH, Yu WR, Kang TJ. Thermoresponsive shape memory characteristics of polyurethane electrospun web. J Appl Polym Sci 2010. [DOI: 10.1002/app.33167] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chung SE, Park CH. The thermoresponsive shape memory characteristics of polyurethane foam. J Appl Polym Sci 2010. [DOI: 10.1002/app.32003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chai SL, Jin MM, Tan HM. Comparative study between core–shell and interpenetrating network structure polyurethane/polyacrylate composite emulsions. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.07.038] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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