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PPE-g-HDPE in high-performance poly(p-phenylene ether)/polyethylene blends: synthesis and compatibilization effects. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Karim SRA, Sim LH, Chan CH, Ramli H. On Thermal and Spectroscopic Studies of Poly(ethylene oxide)/Poly(methyl methacrylate) Blends with Lithium Perchlorate. MACROMOLECULAR SYMPOSIA 2015; 354:374-383. [DOI: 10.1002/masy.201400134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Siti Rozana Abd Karim
- Faculty of Applied Sciences; Universiti Teknologi MARA; 40450 Shah Alam Selangor Malaysia
| | - Lai Har Sim
- Centre of Foundation Studies; Universiti Teknologi MARA; 40430 Puncak Alam Selangor Malaysia
| | - Chin Han Chan
- Faculty of Applied Sciences; Universiti Teknologi MARA; 40450 Shah Alam Selangor Malaysia
| | - Hairunnisa Ramli
- Centre of Foundation Studies; Universiti Teknologi MARA; 40430 Puncak Alam Selangor Malaysia
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3
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Sharma P, Kanchan DK. Effect of nanofiller concentration on conductivity and dielectric properties of poly(ethylene oxide)-poly(methyl methacrylate) polymer electrolytes. POLYM INT 2013. [DOI: 10.1002/pi.4504] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Poonam Sharma
- Solid State Ionics and Glass Research Laboratory, Department of Physics, Faculty of Science; MS University of Baroda; Vadodara Gujarat 390002 India
| | - Dinesh K Kanchan
- Solid State Ionics and Glass Research Laboratory, Department of Physics, Faculty of Science; MS University of Baroda; Vadodara Gujarat 390002 India
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Brettmann BK, Myerson AS, Trout BL. Solid-state nuclear magnetic resonance study of the physical stability of electrospun drug and polymer solid solutions. J Pharm Sci 2012; 101:2185-93. [PMID: 22411707 DOI: 10.1002/jps.23107] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 02/14/2012] [Accepted: 02/17/2012] [Indexed: 12/11/2022]
Abstract
A major challenge in utilizing the amorphous form of an active pharmaceutical ingredient (API) in a final oral dosage form is preventing crystallization over time and ensuring stability. One method to improve stability is lowering the mobility of an API by formulating as a solid solution with an excipient. In this work, we use electrospinning to prepare solid solutions of API, aliskiren (SPP) or indomethacin (IND), and a polymer, polyvinylpyrrolidone (PVP). The stability of the solid solutions over 6-month storage in a desiccator at 40 °C was investigated. Using X-ray diffraction and differential scanning calorimetry, it was determined that no crystals were present in the four formulations tested--1:1 SPP-PVP, 4:1 SPP-PVP, 1:1 IND-PVP, and 2:1 IND-PVP at any time. Solid-state nuclear magnetic resonance relaxation time measurements were used to determine whether phase separation of the API and polymer occurred during the study period. It was found that all formulations remained homogeneous down to at least a 2-10 nm length scale, indicating that for these APIs, electrospinning is an acceptable method for forming stable amorphous solid solutions.
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Affiliation(s)
- Blair Kathryn Brettmann
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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Bhanvase BA, Pinjari DV, Sonawane SH, Gogate PR, Pandit AB. Analysis of semibatch emulsion polymerization: role of ultrasound and initiator. ULTRASONICS SONOCHEMISTRY 2012; 19:97-103. [PMID: 21665510 DOI: 10.1016/j.ultsonch.2011.05.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 05/17/2011] [Accepted: 05/18/2011] [Indexed: 05/30/2023]
Abstract
In this work semibatch miniemulsion was carried out wherein the effect of free radicals produced by ultrasound and an external addition of initiator was examined. Influence of different variables on polymerization rate and polymer particle size has also been investigated. Over a range of 0-4% (by wt) initiator, the polymerization rate was found to increase over a range of 0.56-1.33 g L(-1) min(-1). Similarly monomer concentration range (7.2-15 wt.%) changed the polymerization rate from 1.33 to 2.61 g L(-1) min(-1). Under optimum parametric conditions polymer particle size 50 nm were obtained with a narrow size distribution. Syndiotactic phase of PMMA was observed by controlling the formulation recipe. Although, number of reports could be found in the literature [9,13,17,18,20,22] related to batch emulsion polymerization, this experimental data could be useful for the production of large scale monodispersed PMMA latex as all of the scale-up and design parameters have been qualitatively addressed.
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Affiliation(s)
- B A Bhanvase
- Vishwakarma Institute of Technology, 666, Upper Indira Nagar, Pune 411 037, India
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6
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Brettmann B, Bell E, Myerson A, Trout B. Solid-state NMR characterization of high-loading solid solutions of API and excipients formed by electrospinning. J Pharm Sci 2011; 101:1538-45. [PMID: 22213488 DOI: 10.1002/jps.23032] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/11/2011] [Accepted: 12/08/2011] [Indexed: 11/10/2022]
Abstract
A major focus area in improving pharmaceutical manufacturing is decreasing powder-handling steps such as milling, granulation, and blending. One approach to go directly from active pharmaceutical ingredients (API) and excipients in solution to a formulated drug product is to use electrospinning to make solid formulations of API in a polymer. Because of the rapid evaporation rate in electrospinning, the process usually results in a well-mixed solid dispersion of drugs in the polymer. In this study, solid-state nuclear magnetic resonance is used to examine phase separation in formulations of aliskiren (SPP) and indomethacin (IND) with polyvinylpyrrolidone (PVP) prepared by electrospinning and hot-melt extrusion. It was found that 1:1 SPP-PVP, 1:1 IND-PVP, and 4:1 SPP-PVP formulations prepared by electrospinning are homogeneous solid solutions down to a 2-11 nm length scale, whereas a 4:1 SPP-PVP formulation prepared by hot-melt extrusion exhibits phase separation with domain sizes of 20-100 nm or larger.
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Affiliation(s)
- Blair Brettmann
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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8
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Parra C, Albano C, González G. Effect of surfactant type on the synthesis of PMMA using redox initiation and high frequency ultrasound. POLYM ENG SCI 2008. [DOI: 10.1002/pen.21101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Mu D, Huang XR, Lu ZY, Sun CC. Computer simulation study on the compatibility of poly(ethylene oxide)/poly(methyl methacrylate) blends. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.03.015] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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García Sakai V, Maranas JK, Peral I, Copley JRD. Dynamics of PEO in Blends with PMMA: Study of the Effects of Blend Composition via Quasi-Elastic Neutron Scattering. Macromolecules 2008. [DOI: 10.1021/ma0714870] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victoria García Sakai
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Janna K. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Inmaculada Peral
- NIST Center for Neutron Research, National Institute of Standards & Technology, Gaithersburg, Maryland 20899, and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
| | - John R. D. Copley
- NIST Center for Neutron Research, National Institute of Standards & Technology, Gaithersburg, Maryland 20899
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12
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13
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Liu J, Sakai VG, Maranas JK. Composition Dependence of Segmental Dynamics of Poly(methyl methacrylate) in Miscible Blends with Poly(ethylene oxide). Macromolecules 2006. [DOI: 10.1021/ma052136t] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiahong Liu
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Victoria García Sakai
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Janna K. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
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14
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Lodge TP, Wood ER, Haley JC. Two calorimetric glass transitions do not necessarily indicate immiscibility: The case of PEO/PMMA. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/polb.20735] [Citation(s) in RCA: 171] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Liu G, Ding X, Cao Y, Zheng Z, Peng Y. Novel Shape-Memory Polymer with Two Transition Temperatures. Macromol Rapid Commun 2005. [DOI: 10.1002/marc.200400640] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Sakai VG, Chen C, Maranas JK, Chowdhuri Z. Effect of Blending with Poly(ethylene oxide) on the Dynamics of Poly(methyl methacrylate): A Quasi-Elastic Neutron Scattering Approach. Macromolecules 2004. [DOI: 10.1021/ma0497355] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victoria García Sakai
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Chunxia Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Janna K. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Zema Chowdhuri
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
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17
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Kwak SY, Kim SH, Suzuki T. Molecular-level free volume as a crucial complementary factor affecting miscibility and nanoscopic homogeneity of polyarylate/poly(vinyl chloride) blends. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.09.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Jin X, Zhang S, Runt J. Broadband Dielectric Investigation of Amorphous Poly(methyl methacrylate)/Poly(ethylene oxide) Blends. Macromolecules 2004. [DOI: 10.1021/ma049281b] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing Jin
- Department of Materials Science and Engineering, and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Shihai Zhang
- Department of Materials Science and Engineering, and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - James Runt
- Department of Materials Science and Engineering, and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802
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19
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Wästlund C, Schmidt M, Schantz S, Maurer FHJ. Free volume, mobility, and structural relaxations in poly(ethylene oxide)/poly(methyl methacrylate) blends. POLYM ENG SCI 2004. [DOI: 10.1002/pen.10299] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Slobodian P, Lengálová A, Sáha P. Volume Relaxation Rate in a-PMMA and a-PMMA/PEO Amorphous Blends. Polym J 2004. [DOI: 10.1295/polymj.36.176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Shieh YT, Liu KH. Conformational changes of poly(ethylene oxide) in poly(ethylene oxide)/poly(methyl methacrylate) blends by supercritical carbon dioxide. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.10492] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Kuo PL, Hou SS, Lin CY, Chen CC, Wen TC. Solid polymer electrolytes I, preparation, characterization, and ionic conductivity of gelled polymer electrolytes based on novel crosslinked siloxane/poly(ethylene glycol) polymers. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/pola.20056] [Citation(s) in RCA: 12] [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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23
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Shieh YT, Liu KH, Lin TL. Effect of supercritical CO2 on morphology of compatible crystalline/amorphous PEO/PMMA blends. J Supercrit Fluids 2004. [DOI: 10.1016/s0896-8446(03)00009-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Shafee E, Ueda W. Crystallization and melting behavior of poly(ethylene oxide)/poly(n-butyl methacrylate) blends. Eur Polym J 2002. [DOI: 10.1016/s0014-3057(02)00018-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Hamon L, Grohens Y, Soldera A, Holl Y. Miscibility in blends of stereoregular poly(methyl methacrylate)/poly(ethylene oxide) based oligomers. POLYMER 2001. [DOI: 10.1016/s0032-3861(01)00516-x] [Citation(s) in RCA: 25] [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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26
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Golodnitsky D, Livshits E, Ulus A, Barkay Z, Lapides I, Peled E, Chung SH, Greenbaum S. Fast Ion Transport Phenomena in Oriented Semicrystalline LiI−P(EO)n-Based Polymer Electrolytes. J Phys Chem A 2001. [DOI: 10.1021/jp012547l] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D. Golodnitsky
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - E. Livshits
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - A. Ulus
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - Z. Barkay
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - I. Lapides
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - E. Peled
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - S. H. Chung
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
| | - S. Greenbaum
- School of Chemistry, Tel Aviv University, Wolfson Applied Materials Research Center, Tel Aviv 69978, Israel, Department of Analytical Chemistry, Hebrew University, Jerusalem, Israel, and Physics Department, Hunter College of CUNY, New York, New York 10021
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27
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Lin RH, Woo E, Chiang JC. A solid-state 13C NMR study on phase heterogeneity in the miscible blend of amorphous poly(benzyl methacrylate) with semicrystalline poly(ethylene oxide). POLYMER 2001. [DOI: 10.1016/s0032-3861(00)00671-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Suvorova AI, Hassanova AH, Tujkova IS. Phase equilibrium in blends of crystalline poly(ethylene oxide) - amorphous poly(methyl acrylate) or poly(methyl methacrylate). POLYM INT 2000. [DOI: 10.1002/1097-0126(200009)49:9<1014::aid-pi520>3.0.co;2-j] [Citation(s) in RCA: 9] [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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29
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Brus J, Dybal J, Schmidt P, Kratochvíl J, Baldrian J. Order and Mobility in Polycarbonate−Poly(ethylene oxide) Blends Studied by Solid-State NMR and Other Techniques. Macromolecules 2000. [DOI: 10.1021/ma000533s] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Brus
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
| | - J. Dybal
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
| | - P. Schmidt
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
| | - J. Kratochvíl
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
| | - J. Baldrian
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
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30
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Kanis LA, Viel FC, Crespo JS, Bertolino JR, Pires AT, Soldi V. Study of poly(ethylene oxide)/Carbopol blends through thermal analysis and infrared spectroscopy. POLYMER 2000. [DOI: 10.1016/s0032-3861(99)00520-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Dionísio M, Fernandes AC, Mano JF, Correia NT, Sousa RC. Relaxation Studies in PEO/PMMA Blends. Macromolecules 2000. [DOI: 10.1021/ma9913818] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Madalena Dionísio
- Departamento de Química, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Caparica, Portugal; Centro de Química Estrutural da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia de Polímeros da Universidade do Minho, Campus de Azurém, 4800 Guimarães, Portugal; and Centro de Química Física Molecular da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa,
| | - Anabela C. Fernandes
- Departamento de Química, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Caparica, Portugal; Centro de Química Estrutural da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia de Polímeros da Universidade do Minho, Campus de Azurém, 4800 Guimarães, Portugal; and Centro de Química Física Molecular da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa,
| | - João F. Mano
- Departamento de Química, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Caparica, Portugal; Centro de Química Estrutural da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia de Polímeros da Universidade do Minho, Campus de Azurém, 4800 Guimarães, Portugal; and Centro de Química Física Molecular da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa,
| | - Natália T. Correia
- Departamento de Química, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Caparica, Portugal; Centro de Química Estrutural da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia de Polímeros da Universidade do Minho, Campus de Azurém, 4800 Guimarães, Portugal; and Centro de Química Física Molecular da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa,
| | - Rui C. Sousa
- Departamento de Química, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2825-114 Caparica, Portugal; Centro de Química Estrutural da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia de Polímeros da Universidade do Minho, Campus de Azurém, 4800 Guimarães, Portugal; and Centro de Química Física Molecular da Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa,
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32
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Silva GG, Machado JC, Song M, Hourston DJ. Nanoheterogeneities in PEO/PMMA blends: A modulated differential scanning calorimetry approach. J Appl Polym Sci 2000. [DOI: 10.1002/1097-4628(20000829)77:9<2034::aid-app20>3.0.co;2-q] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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34
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Affrossman S, Kiff T, O'Neill SA, Pethrick RA, Richards RW. Topography and Surface Composition of Thin Films of Blends of Poly(methyl methacrylate) and Poly(ethylene oxide). Macromolecules 1999. [DOI: 10.1021/ma980804n] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stanley Affrossman
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, Cathedral Street, Glasgow G1 1XL, UK, and Interdisciplinary Research Centre in Polymer Science and Technology, University of Durham, Durham DH1 3LE, England
| | - Thomas Kiff
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, Cathedral Street, Glasgow G1 1XL, UK, and Interdisciplinary Research Centre in Polymer Science and Technology, University of Durham, Durham DH1 3LE, England
| | - Scott A. O'Neill
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, Cathedral Street, Glasgow G1 1XL, UK, and Interdisciplinary Research Centre in Polymer Science and Technology, University of Durham, Durham DH1 3LE, England
| | - Richard A. Pethrick
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, Cathedral Street, Glasgow G1 1XL, UK, and Interdisciplinary Research Centre in Polymer Science and Technology, University of Durham, Durham DH1 3LE, England
| | - Randal W. Richards
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, Cathedral Street, Glasgow G1 1XL, UK, and Interdisciplinary Research Centre in Polymer Science and Technology, University of Durham, Durham DH1 3LE, England
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35
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Baldrian J, Horky´ M, Sikora A, Steinharta M, Vlcˇek P, Amenitsch H, Bemstorff S. Time-resolved SAXS study of crystallization of poly(ethylene oxide)/poly(methyl methacrylate) blends. POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00246-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Cao A, Asakawa N, Yoshie N, Inoue Y. Phase Structure and Biodegradation of the Bacterial Poly(3-hydroxybutyric acid)/Chemosynthetic Poly(3-hydroxypropionic acid) Blend. Polym J 1998. [DOI: 10.1295/polymj.30.743] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Thamizharasi S, Venkata Rami Reddy A, Balasubramanian S. Polymer-Metal Complexes: Synthesis and Characterization of Poly-(2-Hydroxy-4-acryloxyacetophenone-semicarbazone) Metal Complexes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 1998. [DOI: 10.1080/10601329808007317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wästlund C, Maurer FHJ. Positron Lifetime Distributions and Free Volume Parameters of PEO/PMMA Blends Determined with the Maximum Entropy Method. Macromolecules 1997. [DOI: 10.1021/ma961604j] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Camilla Wästlund
- Department of Polymer Technology, Chalmers University of Technology, S-412 96 Göteborg, Sweden
| | - Frans H. J. Maurer
- Department of Polymer Technology, Chalmers University of Technology, S-412 96 Göteborg, Sweden
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Parizel N, Lauprêtre F, Monnerie L. N.m.r. and d.s.c. investigations of the miscibility of poly(methyl methacrylate)/poly(ethylene oxide) blends. POLYMER 1997. [DOI: 10.1016/s0032-3861(96)00952-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Smith PB, Pasztor AJ, McKelvy ML, Meunier DM, Froelicher SW, Wang FCY. Analysis of Synthetic Polymers and Rubbers. Anal Chem 1997. [DOI: 10.1021/a19700020] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. B. Smith
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
| | - A. J. Pasztor
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
| | - M. L. McKelvy
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
| | - D. M. Meunier
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
| | - S. W. Froelicher
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
| | - F. C.-Y. Wang
- Analytical Sciences Laboratory, Dow Chemical U.S.A., 1897 Building, Midland, Michigan 48667
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Schantz S. Structure and Mobility in Poly(ethylene oxide)/Poly(methyl methacrylate) Blends Investigated by 13C Solid-State NMR. Macromolecules 1997. [DOI: 10.1021/ma961538l] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Staffan Schantz
- Department of Polymer Technology, Chalmers University of Technology, S-412 96 Göteborg, Sweden
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Schmidt P, Straka J, Dybal J, Schneider B, Doskocˇilová D, Puffr R. Vibrational and n.m.r. study of poly(N-methyllaurolactam) and of poly(N-methyllaurolactam)-poly(4-vinylphenol) blends. POLYMER 1995. [DOI: 10.1016/0032-3861(95)90980-g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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