1
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Nagendra B, Vignola E, Daniel C, Rizzo P, Guerra G. Dependence on Film Thickness of Guest-Induced c Perpendicular Orientation in PPO Films. Polymers (Basel) 2021; 13:4384. [PMID: 34960935 PMCID: PMC8704930 DOI: 10.3390/polym13244384] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/30/2021] [Accepted: 12/10/2021] [Indexed: 11/24/2022] Open
Abstract
For poly(2,6-dimethyl-1,4-phenylene)oxide (PPO) films exhibiting nanoporous-crystalline (NC) phases, c⟂ orientation (i.e., crystalline polymer chain axes being preferentially perpendicular to the film plane) is obtained by crystallization of amorphous films, as induced by sorption of suitable low-molecular-mass guest molecules. The occurrence of c⟂ orientation is relevant for applications of NC PPO films because it markedly increases film transparency as well as guest diffusivity. Surprisingly, we show that the known crystallization procedures lead to c⟂ oriented thick (50-300 μm) films and to unoriented thin (≤20 μm) films. This absence of crystalline phase orientation for thin films is rationalized by fast guest sorption kinetics, which avoid co-crystallization in confined spaces and hence inhibit formation of flat-on lamellae. For thick films exhibiting c⟂ orientation, sigmoid kinetics of guest sorption and of thickening of PPO films are observed, with inflection points associated with guest-induced film plasticization. Corresponding crystallization kinetics are linear with time and show that co-crystal growth is poorly affected by film plasticization. An additional relevant result of this study is the linear relationship between WAXD crystallinity index and DSC melting enthalpy, which allows evaluation of melting enthalpy of the NC α form of PPO (ΔHmο = 42 ± 2 J/g).
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Affiliation(s)
| | | | | | | | - Gaetano Guerra
- Dipartimento di Chimica e Biologia, INSTM Research Unit, Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (B.N.); (E.V.); (C.D.); (P.R.)
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2
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Kaneko F, Seto N, Sato S, Radulescu A, Schiavone MM, Allgaier J, Ute K. Simultaneous small-angle neutron scattering and Fourier transform infrared spectroscopic measurements on cocrystals of syndiotactic polystyrene with polyethylene glycol dimethyl ethers. J Appl Crystallogr 2016; 49:1420-1427. [PMID: 27738412 PMCID: PMC5045726 DOI: 10.1107/s160057671601178x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 07/19/2016] [Indexed: 12/05/2022] Open
Abstract
A new simultaneous measurement method combining small-angle neutron scattering and Fourier-transform infrared spectroscopy was applied to a study on a syndiotactic polystyrene cocrystal with polyethylene glycol dimethyl ether with a molecular weight of 500. It is suggested that the guest molecules in the crystalline region have an elongated structure along the thickness direction of the crystalline lamellae. Syndiotactic polystyrene (sPS) is a crystalline polymer which has a unique property; it is able to form cocrystals with a wide range of chemical compounds, in which the guest molecules are confined in the vacancies of the host sPS crystalline region. Recently, it has been found that even polyethylene glycol oligomers with a molecular weight of more than several hundreds can be introduced into the sPS crystalline region. It is quite important to know how such a long-chain molecule is stored in the host sPS lattice. To tackle this issue, a new simultaneous measurement method combing small-angle neutron scattering and Fourier transform infrared spectroscopy (SANS/FTIR), which has been recently developed by the authors, was applied to an sPS cocrystal with polyethylene glycol dimethyl ether with a molecular weight of 500 (PEGDME500). The temperature-dependent changes of the SANS profile and FTIR spectrum were followed from room temperature up to 413 K for a one-dimensionally oriented SANS/PEGDME500 cocrystal sample. The intensity of the reflections due to the stacking of crystalline lamellae showed a significant temperature dependence. The two-dimensional pattern in the high Q region of SANS also changed depending on temperature. The combined information obtained by SANS and FTIR suggested that PEGDME500 molecules are distributed in both the crystalline and amorphous regions in the low-temperature region close to room temperature, but they are predominantly included in the amorphous region in the high-temperature region. It was also suggested by the two-dimensional SANS profile that PEGDME500 molecules in the crystalline region have an elongated structure along the thickness direction of the crystalline lamellae.
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Affiliation(s)
- Fumitoshi Kaneko
- Gradute School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
| | - Naoki Seto
- Gradute School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
| | - Shuma Sato
- Gradute School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
| | - Aurel Radulescu
- Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH , JCNS Aussenstelle am FRM II, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Maria Maddalena Schiavone
- Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH , JCNS Aussenstelle am FRM II, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Jürgen Allgaier
- Jülich Centre for Neutron Science JCNS(JCNS-1) and Institute for Complex Systems (ICS), Forshungszentrum Jülich GmbH , 52425 Jülich, Germany
| | - Koichi Ute
- Department of Chemical Science and Technology, The University of Tokushima , Tokushima 770-8506, Japan
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Rizzo P, Ianniello G, Venditto V, Tarallo O, Guerra G. Poly(l-lactic acid): Uniplanar Orientation in Cocrystalline Films and Structure of the Cocrystalline Form with Cyclopentanone. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00908] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Paola Rizzo
- Dipartimento
di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Graziella Ianniello
- Dipartimento
di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Vincenzo Venditto
- Dipartimento
di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Oreste Tarallo
- Dipartimento
di Scienze Chimiche, Università degli Studi di Napoli Federico II,Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Gaetano Guerra
- Dipartimento
di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
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Kaneko F, Seto N, Sasaki K, Sakurai S. Multiple Site Occupation of Flexible Polymeric Compounds in Cocrystals of Syndiotactic Polystyrene. CHEM LETT 2014. [DOI: 10.1246/cl.140137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Naoki Seto
- Graduate School of Science, Osaka University
| | | | - Shinichi Sakurai
- Department of Biobased Materials Science, Kyoto Institute of Technology
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KANEKO F. Cocrystallization of Syndiotactic Polystyrene by a Guest Exchange Phenomenon: Investigation of the Mechanism and Preparation of Polymer Composites. KOBUNSHI RONBUNSHU 2014. [DOI: 10.1295/koron.71.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Kaneko F, Radulescu A, Ute K. Time-resolved SANS studies on guest exchange processes in co-crystals of syndiotactic polystyrene. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Kaneko F, Seto N, Sasaki K, Sakurai S, Kimura T. Simultaneous SAXS and WAXS Study on the Guest Exchange Process of Syndiotactic Polystyrene: Crystalline Complex Formation with Triethylene Glycol Dimethyl Ether. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tarallo O, Auriemma F, de Ballesteros OR, Di Girolamo R, Diletto C, Malafronte A, De Rosa C. The Role of Shape and Size of Guest Molecules in the Formation of Clathrates and Intercalates of Syndiotactic Polystyrene. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rizzo P, Ianniello G, Longo S, Guerra G. Uniplanar Orientations and Guest Exchange in PPO Cocrystalline Films. Macromolecules 2013. [DOI: 10.1021/ma400313x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Paola Rizzo
- Dipartimento di Chimica e Biologia
and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano,
Italy
| | - Graziella Ianniello
- Dipartimento di Chimica e Biologia
and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano,
Italy
| | - Simona Longo
- Dipartimento di Chimica e Biologia
and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano,
Italy
| | - Gaetano Guerra
- Dipartimento di Chimica e Biologia
and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano,
Italy
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10
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11
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Albunia AR, Rizzo P, Guerra G. Control of guest transport in polymer films by structure and orientation of nanoporous-crystalline phases. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.01.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Kaneko F, Tsuchida T. ATR FTIR spectroscopic study on acceleration effect of additives on guest exchange process of Syndiotactic polystyrene complexes. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Urakawa O, Kaneko F, Kobayashi H. Dielectric Relaxation of Guest Molecules in a Clathrate Structure of Syndiotactic Polystyrene. J Phys Chem B 2012; 116:14461-9. [DOI: 10.1021/jp304687m] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Osamu Urakawa
- Department of Macromolecular Science, Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Fumitoshi Kaneko
- Department of Macromolecular Science, Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Hideo Kobayashi
- Department of Macromolecular Science, Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
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14
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Rizzo P, Albunia AR, Guerra G. Syndiotactic Polystyrene Films with Different Uniplanar Orientations: Additional Information on Crystal Phase Transitions. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200275] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Albunia AR, Venditto V, Guerra G. Infrared linear dichroism as a tool to evaluate volatile guest partition between amorphous and nanoporous-crystalline polymer phases. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Abbasian M, Shoja SE. Nitroxide mediated and atom transfer radical graft polymerization of atactic polymers onto syndiotactic polystyrene. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2012. [DOI: 10.1590/s0104-66322012000200009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Albunia AR, Rizzo P, Coppola M, De Pascale M, Guerra G. Azobenzene isomerization in polymer co-crystalline phases. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.04.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Dembna A, Venditto V, Albunia AR, Califano R, Guerra G. Sulfonated syndiotactic polystyrene: sorption of ionic liquid in the amorphous phase and of organic guests in the crystalline phase. POLYM ADVAN TECHNOL 2012. [DOI: 10.1002/pat.3049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Agata Dembna
- Institute of Chemical Technology and Engineering; Poznan University of Technology (Politechnika Poznańska); Pl. Sklodowskiej-Curie 2 60-965 Poznan Poland
| | - Vincenzo Venditto
- Dipartimento di Chimica e Biologia, NANO_MATES Research Centre and INSTM Research Unit; Università degli Studi di Salerno; Via Ponte don Melillo 84084 Fisciano Italy
| | | | - Rosa Califano
- Dipartimento di Chimica e Biologia, NANO_MATES Research Centre and INSTM Research Unit; Università degli Studi di Salerno; Via Ponte don Melillo 84084 Fisciano Italy
| | - Gaetano Guerra
- Dipartimento di Chimica e Biologia, NANO_MATES Research Centre and INSTM Research Unit; Università degli Studi di Salerno; Via Ponte don Melillo 84084 Fisciano Italy
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19
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Kaneko F, Sasaki K, Kawaguchi T, Ute K, Hester J. Neutron Diffraction and IR Spectroscopy Study on Crystalline Complexation of Syndiotactic Polystyrene with 15-Crown-5 and 18-Crown-6. CHEM LETT 2012. [DOI: 10.1246/cl.2012.284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | - Koichi Ute
- Department of Chemical Science and Technology, The University of Tokushima
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20
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Guerra G, Daniel C, Rizzo P, Tarallo O. Advanced materials based on polymer cocrystalline forms. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23035] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Tarallo O, Petraccone V, Daniel C, Fasano G, Rizzo P, Guerra G. A chiral co-crystalline form of poly(2,6-dimethyl-1,4-phenylene)oxide (PPO). ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30907f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Lebedev VT, Mel’nikov AB, Török G, Vinogradova LV. Self-organization of sulfopolystyrene ionomers in solutions: Dependence on the polarity of the solution and the content of ionogenic groups in chains. POLYMER SCIENCE SERIES A 2011. [DOI: 10.1134/s0965545x11080049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Albunia AR, Rizzo P, Guerra G. Two Different Uniplanar–Axial Orientations of Syndiotactic Polystyrene Films. Macromolecules 2011. [DOI: 10.1021/ma200806x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexandra R. Albunia
- Dipartimento di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy
| | - Paola Rizzo
- Dipartimento di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy
| | - Gaetano Guerra
- Dipartimento di Chimica e Biologia and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy
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Kaneko F, Sasaki K. Crystalline complex of syndiotactic polystyrene with poly(ethylene glycol) dimethyl ethers. Macromol Rapid Commun 2011; 32:988-93. [PMID: 21598340 DOI: 10.1002/marc.201100136] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 04/14/2011] [Indexed: 11/09/2022]
Abstract
It has been clarified that syndiotactic polystyrene (sPS) forms co-crystalline structures with polyethylene glycol dimethyl ethers (PEGDMEs) with molecular weights ranging from 178 to 1,000 g·mol(-1) through a guest exchange procedure assisted by a plasticizing agent. The PEGDME molecules are incorporated into the spaces between sPS polymer sheets consisting of (T(2)G(2))(2) helices. The results of X-ray diffraction and gravimetric measurements suggest that one or less molecules are included per unit cell for PEGDME with average molecular weight of 1,000 g·mol(-1), which indicates the possibility that longer polymeric molecules can be introduced into sPS lattices with multiple site occupation.
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Affiliation(s)
- Fumitoshi Kaneko
- Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan.
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25
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Tarallo O, Schiavone MM, Petraccone V. Structural characterization of the δ-clathrate forms of syndiotactic polystyrene with n-alkanes. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.01.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Daniel C, Rufolo C, Bobba F, Scarfato A, Cucolo AM, Guerra G. Ferroelectric co-crystalline polymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13282b] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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D’Aniello C, Dondi D, Faucitano A, Guerra G. Intercalate Co-Crystals of Syndiotactic Polystyrene with Benzyl methacrylate and Radiation-Induced Guest Polymerization. Macromolecules 2010. [DOI: 10.1021/ma102282d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Concetta D’Aniello
- Department of Chemistry, NANOMATES, and INSTM Research Unit, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
| | - Daniele Dondi
- Dipartimento di Chimica Generale, Università degli Studi di Pavia,Via Taramelli 12, 27100 Pavia, Italy
| | - Antonio Faucitano
- Dipartimento di Chimica Generale, Università degli Studi di Pavia,Via Taramelli 12, 27100 Pavia, Italy
| | - Gaetano Guerra
- Department of Chemistry, NANOMATES, and INSTM Research Unit, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
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Tarallo O, Petraccone V, R. Albunia A, Daniel C, Guerra G. Monoclinic and Triclinic δ-Clathrates of Syndiotactic Polystyrene. Macromolecules 2010. [DOI: 10.1021/ma1013513] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oreste Tarallo
- Dipartimento di Chimica “Paolo Corradini”, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Vittorio Petraccone
- Dipartimento di Chimica “Paolo Corradini”, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Alexandra R. Albunia
- Dipartimento di Chimica, INSTM, and NANOMATES Research Unit, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
| | - Christophe Daniel
- Dipartimento di Chimica, INSTM, and NANOMATES Research Unit, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
| | - Gaetano Guerra
- Dipartimento di Chimica, INSTM, and NANOMATES Research Unit, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
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30
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Daniel C, Montefusco T, Rizzo P, Musto P, Guerra G. Crystallization from the amorphous form of the nanoporous ɛ form of syndiotactic polystyrene. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.07.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Tarallo O, Schiavone MM, Petraccone V. Polymorphism of the co-crystalline forms of syndiotactic polystyrene with chloroform: Crystal structure of the δ clathrate. Eur Polym J 2010. [DOI: 10.1016/j.eurpolymj.2009.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Albunia AR, D'Aniello C, Guerra G. Three different co-crystalline phases of syndiotactic polystyrene with a nitroxide radical. CrystEngComm 2010. [DOI: 10.1039/c0ce00128g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Kaneko F, Kashihara N, Tsuchida T, Okuyama K. Complexation of syndiotactic polystyrene with 12-crown-4. Macromol Rapid Commun 2009; 31:554-7. [PMID: 21590941 DOI: 10.1002/marc.200900719] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Revised: 11/12/2009] [Indexed: 11/08/2022]
Abstract
Solid-state complexation of syndiotactic polystyrene (sPS) with a crown ether compound, 1,4,7,10-tetraoxa-cyclododecane (12-crown-4), took place when a film of sPS/chloroform clathrate was subjected to a guest exchange procedure assisted with a plasticizing agent. The new guest 12-crown-4 molecules were incorporated into the crystalline region of the sPS film, without causing a large conformational change of host sPS helices. X-ray diffraction and thermogravimetric investigations showed that sPS/12-crown-4 complex had a clathrate complex structure which contained four 12-crown-4 molecules per unit cell. IR and Raman data suggested that 12-crown-4 took a C(i) -type conformation in the sPS complex phase.
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Affiliation(s)
- Fumitoshi Kaneko
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
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34
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Tarallo O, Petraccone V, Daniel C, Guerra G. Dipolar guest orientation in polymer co-crystals and macroscopic films. CrystEngComm 2009. [DOI: 10.1039/b904675p] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Daniel C, Giudice S, Guerra G. Influence of Supercritical Carbon Dioxide Extraction Temperature on the Crystalline Structure and the Morphology of Syndiotactic Polystyrene Aerogels. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/masy.200851319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Albunia AR, Rizzo P, Tarallo O, Petraccone V, Guerra G. Layers of Close-Packed Alternated Enantiomorphous Helices and the Three Different Uniplanar Orientations of Syndiotactic Polystyrene. Macromolecules 2008. [DOI: 10.1021/ma801180b] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexandra R. Albunia
- Dipartimento di Chimica and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy, Dipartimento di Chimica “Paolo Corradini”, Università di Napoli “Federico II”, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Paola Rizzo
- Dipartimento di Chimica and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy, Dipartimento di Chimica “Paolo Corradini”, Università di Napoli “Federico II”, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Oreste Tarallo
- Dipartimento di Chimica and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy, Dipartimento di Chimica “Paolo Corradini”, Università di Napoli “Federico II”, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Vittorio Petraccone
- Dipartimento di Chimica and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy, Dipartimento di Chimica “Paolo Corradini”, Università di Napoli “Federico II”, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Gaetano Guerra
- Dipartimento di Chimica and INSTM Research Unit, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, Italy, Dipartimento di Chimica “Paolo Corradini”, Università di Napoli “Federico II”, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
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