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Melt spinning of polyamide 4. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Formenti S, Castagna R, Momentè R, Bertarelli C, Briatico-Vangosa F. The relevance of extensional rheology on electrospinning: the polyamide/iron chloride case. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2015.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sang XX, Zhang JN, Ke YC, Cao XY, Ma YM, Wang F. The influence of rare earth ions on the rheological behavior of polyamide. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1699-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu S, Zhang C, Proniewicz E, Proniewicz LM, Kim Y, Liu J, Zhao Y, Xu Y, Wu J. Crystalline transition and morphology variation of polyamide 6/CaCl2 composite during the decomplexation process. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:783-788. [PMID: 23892342 DOI: 10.1016/j.saa.2013.06.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/20/2013] [Accepted: 06/13/2013] [Indexed: 06/02/2023]
Abstract
In this work, we developed a new method to prepare porous PA6 with different morphologic feature and crystalline forms via the decomplexation of PA6/CaCl2 composite. The structures and morphology of thus obtained materials were characterized by vibrational spectroscopy (FT-IR and Raman) and scanning electron microscope (SEM) method. When amorphous PA6/CaCl2 composite films were treated in water at room temperature, PA6 re-arranges into γ form. However, decomplexation of the PA6/CaCl2 composite in boiling water produces PA6 in α crystalline form. If the PA6/CaCl2 composite is soaked in methanol, part of PA6 is dissolved or swollen in methanol/metal salt solutions. As a result, a dissolve/precipitation process occurred during the decomplexation process, which led to the formation of PA6 in α crystalline form. Further investigation demonstrates that the morphologies of the porous PA6 could be adjusted by using different solvents and/or different decomplexation conditions.
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Affiliation(s)
- Shaoxuan Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
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Liu S, Zhang C, Liu Y, Zhao Y, Xu Y, Ozaki Y, Wu J. Coordination between yttrium ions and amide groups of polyamide 6 and the crystalline behavior of polyamide 6/yttrium composites. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.04.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wei W, Qiu L, Wang XL, Chen HP, Lai YC, Tsai FC, Zhu P, Yeh JT. Drawing and tensile properties of polyamide 6/calcium chloride composite fibers. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9591-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ciferri A. Charge-dependent and charge-independent contributions to ion-protein interaction. Biopolymers 2008; 89:700-9. [DOI: 10.1002/bip.20997] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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St. Clair AK, Taylor LT. Incorporation of Metal Related Materials into Electrically Neutral Polymers. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/00222338108082044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - L. T. Taylor
- b Department of Chemistry , Virginia Polytechnic Institute and State University , Blacksburg , VA , 24061
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Siegmann A, Baraam Z. Nylon-6 Containing Metal Halides I: Melting and Crystallization. INT J POLYM MATER PO 2006. [DOI: 10.1080/00914038008077952] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mantia FPL, Polizzotti G, Titomanlio G, Acierno D. Effect of drawing on the structure and the dynamic-mechanical behavior of salted polycaproamide. J MACROMOL SCI B 2006. [DOI: 10.1080/00222348208205089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F. P. La Mantia
- a Istituto di Ingegneria Chimica University of Palermo , Palermo, Italy
| | - G. Polizzotti
- a Istituto di Ingegneria Chimica University of Palermo , Palermo, Italy
| | - G. Titomanlio
- a Istituto di Ingegneria Chimica University of Palermo , Palermo, Italy
| | - D. Acierno
- a Istituto di Ingegneria Chimica University of Palermo , Palermo, Italy
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Kotek R, Jung D, Tonelli AE, Vasanthan N. Novel Methods for Obtaining High Modulus Aliphatic Polyamide Fibers. ACTA ACUST UNITED AC 2005. [DOI: 10.1081/mc-200067716] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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James D, Wetton R, Brown D. Polyether-metal salt complexes: 1. The elevation of the glass transition temperature of polyethers by metal salts. POLYMER 1979. [DOI: 10.1016/0032-3861(79)90220-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Alfonso GC, Pedemonte E, Ponzetti L. Mechanism of densification and crystal perfection of poly(ethylene terephthalate). POLYMER 1979. [DOI: 10.1016/0032-3861(79)90052-1] [Citation(s) in RCA: 87] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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