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Achieving toughening of PEEK via preparation of thermally stable and crystalline PEKEKK nanospheres by microemulsion method. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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2
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Liu Y, Qiao B, Jia N, Shi S, Chen X, An Z, Chen P. Efficient Bifunctional Oxygen Electrocatalysts for Rechargeable Zinc–air Battery: Fe3O4/N‐C Nanoflowers Derived from Aromatic Polyamide. ChemCatChem 2021. [DOI: 10.1002/cctc.202101523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yanping Liu
- Key Laboratory of Applied Surface and Colliod Chemistry School of Materials Science and Engineering CHINA
| | - Bin Qiao
- Key Laboratory of Applied Surface and Colloid Chemistry School of Materials Science and Engineering CHINA
| | - Nan Jia
- Key Laboratory of Applied Surface and Colloid Chemistry School of Material Science and Engineering CHINA
| | - Shufeng Shi
- Key Laboratory of Applied Surface and Colliod Chemistry school and materials science CHINA
| | - Xinbing Chen
- Key Laboratory of Applied Surface and Colloid Chemistry school of materials science and engineering CHINA
| | - Zhongwei An
- Key laboratory of applied surface and colloid chemistry school of materials science and engineering CHINA
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Yoshioka Y. Synthesis of Hydrophilic Aromatic Polyesteramide Porous Bodies Having Controlled Structures and Characteristics from Submicron‐Sized Particles. ChemistrySelect 2020. [DOI: 10.1002/slct.202001238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yayoi Yoshioka
- Research Division of Applied Material Chemistry, Izumi CenterOsaka Research Institute of Industrial Science and Technology 2-7-1, Ayumino Izumi, Osaka 594-1157 Japan
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Preparation of aromatic polyamide nanoparticles with multiple functional groups in mixed solvent solutions via a one-step precipitation polymerization. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4388-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Nakayama H, Adachi N, Atarashi H, Uchida T, Yamazaki S, Kimura K. Size control of aromatic polyamide hollow spheres prepared by reaction-induced phase separation. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Nakayama H, Fujitsu Y, Uchida T, Yamazaki S, Kimura K. Consideration on formation mechanism of aromatic polyamide hollow spheres prepared by reaction-Induced phase separation. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hirofumi Nakayama
- Graduate School of Environmental and Life Science; Okayama University; 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Yuji Fujitsu
- Graduate School of Environmental and Life Science; Okayama University; 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Tetsuya Uchida
- Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Shinichi Yamazaki
- Graduate School of Environmental and Life Science; Okayama University; 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Kunio Kimura
- Graduate School of Environmental and Life Science; Okayama University; 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
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Yoshioka Y. Characterization of Aromatic Polyamide Particles Containing Carboxylic Acid and Carboxylic Acid Chloride Groups and Their Modification in Water. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2013. [DOI: 10.1080/1023666x.2013.753508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Control of the size and characteristic features of fluorine-containing aromatic polyamide particles. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-2898-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stefanescu EA, Stefanescu C, Negulescu II. Biodegradable Polymeric Capsules Obtained via Room Temperature Spray Drying: Preparation and Characterization. J Biomater Appl 2010; 25:825-49. [DOI: 10.1177/0885328210366489] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this contribution is to determine the relationship existent between the chemistry and/or viscosity of some biodegradable polymer solutions and the morphology of micro- and nanospheres resulted after spray drying the solutions at room conditions either in the presence or in the absence of an encapsulated aqueous material. Using dichloromethane as solvent, the following polyesters were used to prepare 2 wt% solutions: polyhydroxybutyrate (PHB), polylactic acid (PLA), poly(lactic- co-glycolic acid) (PLGA) and Eastar Bio GP (GP). A comprehensive thermal characterization was also performed on all polymers to verify the relationships existent between the structure of polyesters and certain important parameters, such as Tg, T m, Td. It was observed that a decrease in the solution viscosity triggers the formation of smoother microspheres. When the viscosity becomes low enough the sprayed solution can lead to the development of well defined nanospheres instead of microspheres. Additionally, it was found that in the presence of an aqueous core the micro- and/or nanocapsules coalesce into larger micrometric aggregates, due to the plasticizing effects of water on the polyester.
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Affiliation(s)
- Eduard A. Stefanescu
- Department of Materials Science and Engineering Iowa State University, Ames, IA 50011, USA,
| | - Cristina Stefanescu
- Department of Chemistry, Louisiana State University Baton Rouge, LA 70803, USA
| | - Ioan I. Negulescu
- School of Human Ecology, Agricultural Center Louisiana State University, Baton Rouge, LA 70803, USA
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Yoshioka Y, Asao K. Preparation of Pie-Shaped and Rugged Aromatic Polyamide Particles. MACROMOL REACT ENG 2008. [DOI: 10.1002/mren.200800012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Liu M, Zhou Z, Wang X, Xu J, Yang K, Cui Q, Chen X, Cao M, Weng J, Zhang Q. Formation of poly(l,d-lactide) spheres with controlled size by direct dialysis. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.07.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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