1
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Safitri BFS, Nagarajan S, Woo EM. Self-Assembly Modulation of Stereocomplexes of Chiral 2-Hydroxy-2-Phenylacetic Acids in Poly(ethylene oxide). Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
| | - Selvaraj Nagarajan
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701-01, Taiwan
| | - Eamor M. Woo
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701-01, Taiwan
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2
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Morphology Modulation in Self-Assembly of Chiral 2-Hydroxy-2-Phenylacetic Acids in Polymeric Diluents. CRYSTALS 2022. [DOI: 10.3390/cryst12060807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study focused on the chirality effects that control the lamellar bending sense in self-assembled crystals of chiral 2-hydroxy-2-phenylacetic acids. 2-Hydroxy-2-phenylacetic acid or mandelic acid (MA) was crystallized in the presence of poly(4-vinyl phenol) (PVPh), and its crystalline structures and morphologies were assessed using polarized optical microscopy (POM) and scanning electron microscopy (SEM). MA of two opposite chiral forms (S- and R-) was crystallized with PVPh as the morphology modulator; with adjustment of the PVPh content, the morphology of MA crystals transforms from ring-banded spherulites to highly dendritic spherulites. For MA/PVPh (50/50 wt./wt.) blend and neat MA at same Tc, the dendritic spherulites are packed with single crystals where the lamellae bend at a specific direction varying with Tc and chirality. Contrary to conventional thought, the bending senses of the MA lamellae in the dendritic spherulites are not solely governed by the MA molecular chirality (S or R), but also by Tc. Only at high Tc (>65 °C) is the lamellar bending direction in dendritic spherulites of (S)-MA or (R)-MA blended with PVPh dictated by the chirality, i.e., displaying counterclockwise and clockwise bending direction for (S)-MA/PVPh and (R)-MA/PVPh, respectively. Nevertheless, at low Tc (45 °C), the bending sense of dendritic spherulites displays an opposite direction from those at the higher Tc, which is to say that the chirality alone does not control the lamellar bending direction.
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3
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Sokołowska M, Stachowska E, Czaplicka M, El Fray M. Effect of enzymatic
versus
titanium dioxide/silicon dioxide catalyst on crystal structure of ‘green’ poly[(butylene succinate)‐
co
‐(dilinoleic succinate)] copolymers. POLYM INT 2020. [DOI: 10.1002/pi.6104] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Martyna Sokołowska
- Faculty of Chemical Technology and Engineering, Department of Polymer and Biomaterials Science West Pomeranian University of Technology Szczecin Poland
| | - Ewa Stachowska
- Division of Metrology and Measurement Systems, Institute of Mechanical Technology Poznan University of Technology Poznan Poland
| | - Michalina Czaplicka
- Division of Metrology and Measurement Systems, Institute of Mechanical Technology Poznan University of Technology Poznan Poland
| | - Miroslawa El Fray
- Faculty of Chemical Technology and Engineering, Department of Polymer and Biomaterials Science West Pomeranian University of Technology Szczecin Poland
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4
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Ye HM, Freudenthal JH, Tan M, Yang J, Kahr B. Chiroptical Differentiation of Twisted Chiral and Achiral Polymer Crystals. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01526] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hai-Mu Ye
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, United States
- Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, P. R. China
| | - John H. Freudenthal
- Hinds Instruments, 7245 NW Evergreen Parkway, Hillsboro, Oregon 97124, United States
| | - Melissa Tan
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Jingxiang Yang
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Bart Kahr
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, United States
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5
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Ikehara T, Kataoka T, Inutsuka M, Jin RH. Chiral Nucleating Agents Affecting the Handedness of Lamellar Twist in the Banded Spherulites in Poly(ε-Caprolactone)/Poly(Vinyl Butyral) Blends. ACS Macro Lett 2019; 8:871-874. [PMID: 35619514 DOI: 10.1021/acsmacrolett.9b00416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral silica, which acts as a nucleating agent of poly(ε-caprolactone) (PCL), was demonstrated to induce excess handedness of lamellar twist in the banded spherulites of PCL blended with poly(vinyl butyral). The d- and l-forms of silica enhanced the right- and left-handed twists, respectively. The influences of chiral silica on the twist handedness were statistically significant. These results indicate that the handedness of twisting can be controlled upon primary nucleation. The organic substances used as chiral templates of silica had no effect on the handedness; silica was shown to govern the handedness. The possible mechanisms of the chirality transfer are discussed.
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Affiliation(s)
- Takayuki Ikehara
- Department of Material and Life Chemistry, Kanagawa University, 3-6-1, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Toshiyuki Kataoka
- Department of Material and Life Chemistry, Kanagawa University, 3-6-1, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Manabu Inutsuka
- Department of Material and Life Chemistry, Kanagawa University, 3-6-1, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Ren-Hua Jin
- Department of Material and Life Chemistry, Kanagawa University, 3-6-1, Kanagawa-ku, Yokohama 221-8686, Japan
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6
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Analysis of molecular orientation in polymeric spherulite using polarized micro attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopic imaging. Anal Chim Acta 2019; 1065:79-89. [PMID: 31005154 DOI: 10.1016/j.aca.2019.02.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 11/20/2022]
Abstract
Micro ATR-FTIR spectroscopic imaging enables the visualization of two-dimensional chemical distribution at a higher spatial resolution than macro-transmission FTIR imaging approach. In this study, micro ATR-FTIR imaging was applied for analysis of a specific morphology in a spherulite of poly(3-hydroxybutyrate) (PHB). The PHB spherulites crystallized at an isothermal condition, showed the fine band structure due to the twisting lamellar crystals during the spherulite growth under the polarized optical microscope (POM). In addition, the band structure observed in the PHB spherulite was the double band pattern in which the higher and lower birefringence banded areas alternatively appear due to the three-dimensional orientation of crystallographic axes and the biaxial refractive index ellipsoid of PHB crystalline structure. Micro ATR-FTIR spectroscopic imaging was employed for detecting the double band structure in the PHB spherulite. However, the obtained spectral images did not indicate any band structures. To detect the difference of molecular orientation among the double band structures, the micro ATR-FTIR imaging was performed with a linear polarizer at four different angles. The mean values of absorbance in each measured area changed depending on the polarizer angle. The in-plane molecular orientation to the tangential direction of spherulite, caused by the dependence of the average absorbance on the polarizer angles, was determined by the position of measured area in the spherulite and the linear dicroism of each of the spectral band used. To visualize the small difference of molecular orientation in the double band structure, micro ATR-FTIR images of the dichroic differences at three spectral bands were calculated from two different sets of polarizer angles. The micro ATR-FTIR images representing the dichroic differences displayed their corresponding distributions among three spectral bands. The complementary distributions of the dichroic difference were caused by the crystallographic orientation of b- and c-axes and were successfully visualized to reveal the pattern with the features less than 10 μm in size. The results achieved in this study were due to two advantages of the polarized micro ATR-FTIR imaging: the high spatial resolution of micro ATR-FTIR imaging technique, and the high sensitivity of polarization measurements. Thus, this work demonstrates the power of this spectroscopic approach for such analytical investigation.
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7
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Woo EM, Lugito G, Chang SM. Three-dimensional interior analyses on periodically banded spherulites of poly(dodecamethylene terephthalate). CrystEngComm 2018. [DOI: 10.1039/c7ce02226c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polarized optical, atomic force, and scanning electron microscopy images showing the correlations of three-dimensional crystal arrangements with optical properties exhibited by poly(dodecamethylene terephthalate).
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Affiliation(s)
- E. M. Woo
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701-01
- Taiwan
| | - G. Lugito
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701-01
- Taiwan
- Department of Chemical Engineering
| | - S. M. Chang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701-01
- Taiwan
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8
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Xu J, Zhang S, Guo B. Insights from polymer crystallization: Chirality, recognition and competition. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.10.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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9
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Tu CH, Woo EM, Lugito G. Structured growth from sheaf-like nuclei to highly asymmetric morphology in poly(nonamethylene terephthalate). RSC Adv 2017. [DOI: 10.1039/c7ra09170b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thorough microscopy analyses are done on dissecting 3D interiors of poly(nonamethylene terephthalate) (PNT) banded spherulites.
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Affiliation(s)
- C. H. Tu
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan
| | - E. M. Woo
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan
| | - G. Lugito
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan
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10
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Directed crystallization of isotactic poly(2-vinylpyridine) for preferred lamellar twisting by chiral dopants. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Lan Q, Yu J, Zhang J, He J. Direct formation of banded spherulites in poly(l-lactide) from the glassy state: Unexpected synergistic role of chain structure and compressed CO2. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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13
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The banded spherulites of iPP induced by pressure vibration injection molding. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1708-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Hsieh YT, Ishige R, Higaki Y, Woo EM, Takahara A. Microscopy and microbeam X-ray analyses in poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with amorphous poly(vinyl acetate). POLYMER 2014. [DOI: 10.1016/j.polymer.2014.10.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Crystallization Behaviors and Structure Transitions of Biocompatible and Biodegradable Diblock Copolymers. Polymers (Basel) 2014. [DOI: 10.3390/polym6082116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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16
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Cui X, Shtukenberg AG, Freudenthal J, Nichols S, Kahr B. Circular Birefringence of Banded Spherulites. J Am Chem Soc 2014; 136:5481-90. [DOI: 10.1021/ja5013382] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyan Cui
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003
| | - Alexander G. Shtukenberg
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003
| | - John Freudenthal
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003
- Hinds Instruments, 7245 NW
Evergreen Parkway, Hillsboro, Oregon 97124
| | - Shane Nichols
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003
| | - Bart Kahr
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003
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17
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Shtukenberg AG, Punin YO, Gujral A, Kahr B. Wachstumsinduziertes Biegen und Verwinden von Einkristallen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201301223] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Shtukenberg AG, Punin YO, Gujral A, Kahr B. Growth actuated bending and twisting of single crystals. Angew Chem Int Ed Engl 2014; 53:672-99. [PMID: 24382661 DOI: 10.1002/anie.201301223] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Indexed: 11/11/2022]
Abstract
Crystals of a variety of substances including elements, minerals, simple salts, organic molecular crystals, and high polymers forgo long-range translational order by twisting and bending as they grow. These deviations have been observed in crystals ranging in size from nanometers to centimeters. How and why so many materials choose dramatic non-crystallographic distortions is analyzed, with an emphasis on crystal chemistries that give rise to stresses operating either on surfaces of crystallites or within the bulk.
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Affiliation(s)
- Alexander G Shtukenberg
- Department of Chemistry and Molecular Design Institute, New York University, 100 Washington Square East, Room 1001, New York City, NY 10003 (USA).
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19
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Zhang Y, Fang H, Wang Z, Tang M, Wang Z. Disclosing the formation of ring-banded spherulites for semicrystalline polymers through the double-layer film method. CrystEngComm 2014. [DOI: 10.1039/c3ce42083c] [Citation(s) in RCA: 27] [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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20
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Hikima Y, Morikawa J, Hashimoto T. Wavenumber Dependence of FT-IR Image of Molecular Orientation in Banded Spherulites of Poly(3-hydroxybutyrate) and Poly(l-lactic acid). Macromolecules 2013. [DOI: 10.1021/ma302560q] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yuta Hikima
- Tokyo Institute Technology, 2-12-1, S8-29, Ookayama,
Meguro-ku Tokyo 152-8550, Japan
| | - Junko Morikawa
- Tokyo Institute Technology, 2-12-1, S8-29, Ookayama,
Meguro-ku Tokyo 152-8550, Japan
| | - Toshimasa Hashimoto
- Tokyo Institute Technology, 2-12-1, S8-29, Ookayama,
Meguro-ku Tokyo 152-8550, Japan
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21
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Su CC, Woo EM, Hsieh YT. Perpendicularly oriented lamellae in poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) blended with an amorphous polymer: ultra-thin to thick films. Phys Chem Chem Phys 2013; 15:2495-506. [DOI: 10.1039/c2cp43523c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Shtukenberg A, Gunn E, Gazzano M, Freudenthal J, Camp E, Sours R, Rosseeva E, Kahr B. Bernauer's bands. Chemphyschem 2011; 12:1558-71. [PMID: 21370378 DOI: 10.1002/cphc.201000963] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Indexed: 11/06/2022]
Abstract
Ferdinand Bernauer proposed in his monograph, "Gedrillte" Kristalle (1929), that a great number of simple, crystalline substances grow from solution or from the melt as polycrystalline spherulites with helically twisting radii that give rise to distinct bull's-eye patterns of concentric optical bands between crossed polarizers. The idea that many common molecular crystals can be induced to grow as mesoscale helices is a remarkable proposition poorly grounded in theories of polycrystalline pattern formation. Recent reinvestigation of one of the systems Bernauer described revealed that rhythmic precipitation in the absence of helical twisting accounted for modulated optical properties [Gunn, E. et al. J. Am. Chem. Soc. 2006, 128, 14234-14235]. Herein, the Bernauer hypothesis is re-examined in detail for three substances described in "Gedrillte" Kristalle, potassium dichromate, hippuric acid, and tetraphenyl lead, using contemporary methods of analysis not available to Bernauer, including micro-focus X-ray diffraction, electron microscopy, and Mueller matrix imaging polarimetry. Potassium dichromate is shown to fall in the class of rhythmic precipitates of undistorted crystallites, while hippuric acid spherulites are well described as helical fibrils. Tetraphenyl lead spherulites grow by twisting and rhythmic precipitation. The behavior of tetraphenyl lead is likely typical of many substances in "Gedrillte" Kristalle. Rhythmic precipitation and helical twisting often coexist, complicating optical analyses and presenting Bernauer with difficulties in the characterization and classification of the objects of his interest.
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Affiliation(s)
- Alexander Shtukenberg
- Department of Chemistry, New York University, 100 Washington Square East, Room 1001, New York, NY 10003, USA.
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23
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Wang J, Li CY, Jin S, Weng X, Van Horn RM, Graham MJ, Zhang WB, Jeong KU, Harris FW, Lotz B, Cheng SZD. Helical Crystal Assemblies in Nonracemic Chiral Liquid Crystalline Polymers: Where Chemistry and Physics Meet. Ind Eng Chem Res 2010. [DOI: 10.1021/ie100248r] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing Wang
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Christopher Y. Li
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Shi Jin
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Xin Weng
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Ryan M. Van Horn
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Matthew J. Graham
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Wen-Bin Zhang
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Kwang-Un Jeong
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Frank W. Harris
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Bernard Lotz
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
| | - Stephen Z. D. Cheng
- College of Polymer Science and Polymer Engineering, Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, Department of Materials Sciences and Engineering, Drexel University, Philadelphia, Pennsylvania 19014, Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, and Institute Charles Sadron, CNRS, 6 Rue Boussingault, Strasbourg
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24
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Nozue Y, Shinohara Y, Ogawa Y, Takamizawa T, Sakurai T, Kasahara T, Yamaguchi N, Yagi N, Amemiya Y. Deformation behavior of banded spherulite during drawing investigated by simultaneous microbeam SAXS–WAXS and POM measurement. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.11.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Chen YF, Woo EM. Annular Multi-Shelled Spherulites in Interiors of Bulk-Form Poly(nonamethylene terephthalate). Macromol Rapid Commun 2009; 30:1911-6. [DOI: 10.1002/marc.200900292] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Revised: 07/01/2009] [Indexed: 11/11/2022]
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26
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Toda A, Okamura M, Taguchi K, Hikosaka M, Kajioka H. Branching and Higher Order Structure in Banded Polyethylene Spherulites. Macromolecules 2008. [DOI: 10.1021/ma702267e] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akihiko Toda
- Graduate School of Integrated Arts and Sciences and Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan, and Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8521, Japan
| | - Mari Okamura
- Graduate School of Integrated Arts and Sciences and Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan, and Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8521, Japan
| | - Ken Taguchi
- Graduate School of Integrated Arts and Sciences and Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan, and Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8521, Japan
| | - Masamichi Hikosaka
- Graduate School of Integrated Arts and Sciences and Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan, and Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8521, Japan
| | - Hiroshi Kajioka
- Graduate School of Integrated Arts and Sciences and Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan, and Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8521, Japan
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27
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Nozue Y, Shinohara Y, Amemiya Y. Application of Microbeam Small- and Wide-angle X-ray Scattering to Polymeric Material Characterization. Polym J 2007. [DOI: 10.1295/polymj.pj2007077] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Lovera D, Márquez L, Balsamo V, Taddei A, Castelli C, Müller AJ. Crystallization, Morphology, and Enzymatic Degradation of Polyhydroxybutyrate/Polycaprolactone (PHB/PCL) Blends. MACROMOL CHEM PHYS 2007. [DOI: 10.1002/macp.200700011] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Toda A, Arita T, Hikosaka M, Hobbs JK, Miles MJ. An Atomic Force Microscopy Observation of Poly(Vinylidene Fluoride) Banded Spherulites. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-120021604] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Akihiko Toda
- a Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan
| | - Takeshi Arita
- a Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan
| | - Masamichi Hikosaka
- a Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan
| | - Jamie K. Hobbs
- b H.H. Wills Physics Laboratory , University of Bristol , Bristol, UK
| | - Mervyn J. Miles
- b H.H. Wills Physics Laboratory , University of Bristol , Bristol, UK
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Wang Y, Mano JF. Banded spherulites in poly(L-lactic acid): Effects of the crystallization temperature and molecular weight. J Appl Polym Sci 2007. [DOI: 10.1002/app.26494] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Lotz B, Cheng SZ. A critical assessment of unbalanced surface stresses as the mechanical origin of twisting and scrolling of polymer crystals. POLYMER 2005. [DOI: 10.1016/j.polymer.2004.07.042] [Citation(s) in RCA: 328] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jiang S, He C, An L, Chen X, Jiang B. Crystallization and Ring-Banded Spherulite Morphology of Poly(ethylene oxide)-block-Poly(?-caprolactone) Diblock Copolymer. MACROMOL CHEM PHYS 2004. [DOI: 10.1002/macp.200400204] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Co-existing handednesses of lamella twisting in one spherulite observed with scanning microbeam wide-angle X-ray scattering. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.09.084] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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Beekmans L, Hempenius M, Vancso G. Morphological development of melt crystallized poly(propylene oxide) by in situ AFM: formation of banded spherulites. Eur Polym J 2004. [DOI: 10.1016/j.eurpolymj.2004.01.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mareau VH, Prud'homme RE. Dual Growth Rates and Morphologies of Isothermally Crystallized Miscible Polymer Blends. Macromolecules 2002. [DOI: 10.1021/ma011989s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincent H. Mareau
- Department of Chemistry, CERSIM, Laval University, Québec, Canada G1K 7P4
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Gazzano M, Focarete ML, Riekel C, Scandola M. Bacterial poly(3-hydroxybutyrate): an optical microscopy and microfocus X-ray diffraction study. Biomacromolecules 2002; 1:604-8. [PMID: 11710188 DOI: 10.1021/bm0055549] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two-dimensional spatially resolved microfocus X-ray diffraction has been used to investigate spherulites of pure bacterial poly(3-hydroxybutyrate) (PHB) and of a blend of natural and synthetic atactic PHB (a-PHB) crystallized at a relatively high temperature (Tc = 140 degrees C). Both samples investigated contained practically two-dimensional spherulites, characterized by wide extinction bands (band spacing > 80 microns). The X-ray diffraction patterns confirmed that the unit cell alpha-axis is oriented along the spherulite radius in PHB and that the same is true for the a-PHB containing blend. Comparison of the matrix of diffraction patterns with the polarized optical micrograph of the scanned sample area indicated a very clear correlation between pattern changes and banding, yielding a straightforward picture of the structural variations within the spherulite.
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Affiliation(s)
- M Gazzano
- Department of Chemistry G. Ciamician, Centro di Studio per la Fisica delle Macromolecole del CNR, University of Bologna, via Selmi 2, 40126 Bologna, Italy
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Shahin MM, Olley RH. Novel etching phenomena in poly(3-hydroxy butyrate) and poly(oxymethylene) spherulites. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/polb.10078] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Li CY, Ge JJ, Bai F, Calhoun BH, Harris FW, Cheng SZD, Chien LC, Lotz B, Keith HD. Early-Stage Formation of Helical Single Crystals and Their Confined Growth in Thin Film. Macromolecules 2001. [DOI: 10.1021/ma0021996] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher Y. Li
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Jason J. Ge
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Feng Bai
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Bret H. Calhoun
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Frank W. Harris
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Stephen Z. D. Cheng
- The Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Liang-Chy Chien
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44010-0001
| | - Bernard Lotz
- Institute Charles Sadron, 6 Rue Boussingault, Strasbourg 67083
| | - H. Douglas Keith
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269
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Toda A, Arita T, Hikosaka M. Three-dimensional morphology of PVDF single crystals forming banded spherulites. POLYMER 2001. [DOI: 10.1016/s0032-3861(00)00446-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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