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Lapuk SE, Mukhametzyanov TA, Schick C, Gerasimov AV. Stability of Rapidly Crystallizing Sulfonamides Glasses by Fast Scanning Calorimetry: Crystallization Kinetics and Glass-Forming Ability. J Pharm Sci 2024; 113:1257-1264. [PMID: 38070775 DOI: 10.1016/j.xphs.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/01/2023] [Accepted: 12/01/2023] [Indexed: 04/19/2024]
Abstract
Production and evaluation of the kinetic stability of the amorphous forms of active pharmaceutical ingredients are among the current challenges of modern pharmaceutical science. In the present work, amorphous forms of several sulfonamides were produced for the first time using Fast Scanning calorimetry. The parameters, characterizing the glass-forming ability of the compounds, i.e. the critical cooling rate of the melt and the kinetic fragility, were determined. The cold crystallization kinetics was studied using both isothermal and non-isothermal approaches. The results of the present study will contribute to the development of approaches for producing amorphous forms of rapidly crystallizing active pharmaceutical ingredients.
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Affiliation(s)
- S E Lapuk
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - T A Mukhametzyanov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - C Schick
- Universitat Rostock, Institute of Physics, Albert-Einstein_str. 23-24, Rostock, DE 18051, Germany
| | - A V Gerasimov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
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2
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Schmelzer JWP, Tropin TV, Schick C. Effects of Structural Relaxation of Glass-Forming Melts on the Overall Crystallization Kinetics in Cooling and Heating. Entropy (Basel) 2023; 25:1485. [PMID: 37998176 PMCID: PMC10670338 DOI: 10.3390/e25111485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023]
Abstract
In the theoretical treatment of crystallization, it is commonly assumed that the relaxation processes of a liquid proceed quickly as compared to crystal nucleation and growth processes. Actually, it is supposed that a liquid is always located in the metastable state corresponding to the current values of pressure and temperature. However, near and below the glass transition temperature, Tg, this condition is commonly not fulfilled. In such cases, in the treatment of crystallization, deviations in the state of the liquid from the respective metastable equilibrium state have to be accounted for when determining the kinetic coefficients governing the crystallization kinetics, the thermodynamic driving force of crystallization, and the surface tension of the aggregates of the newly evolving crystal phase including the surface tension of critical clusters considerably affecting the crystal nucleation rate. These factors may greatly influence the course of the overall crystallization process. A theoretical analysis of the resulting effects is given in the present paper by numerical solutions of the J(ohnson)-M(ehl)-A(vrami)-K(olmogorov) equation employed as the tool to model the overall crystallization kinetics and by analytical estimates of the crystallization peak temperatures in terms of the dependence on cooling and heating rates. The results are shown to be in good agreement with the experimental data. Possible extensions of the theory are anticipated and will be explored in future analysis.
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Affiliation(s)
- Jürn W. P. Schmelzer
- Institut für Physik, Universität Rostock, Albert-Einstein-Strasse 23-25, 18059 Rostock, Germany;
- Competence Centre CALOR, Faculty of Interdisciplinary Research, University of Rostock, Albert-Einstein-Str. 25, 18051 Rostock, Germany
| | - Timur V. Tropin
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain;
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, ul. Joliot-Curie 6, 141980 Dubna, Russia
| | - Christoph Schick
- Institut für Physik, Universität Rostock, Albert-Einstein-Strasse 23-25, 18059 Rostock, Germany;
- Competence Centre CALOR, Faculty of Interdisciplinary Research, University of Rostock, Albert-Einstein-Str. 25, 18051 Rostock, Germany
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3
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Lapuk SE, Mukhametzyanov TA, Schick C, Gerasimov AV. Kinetic Stability and Glass-Forming Ability of Thermally Labile Quinolone Antibiotics. Mol Pharm 2023. [PMID: 37133972 DOI: 10.1021/acs.molpharmaceut.3c00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The application of drugs in the amorphous state is one way to improve their bioavailability. As such, the determination of the optimal conditions for production and the assessment of the stability of the amorphous system are actively researched topics of present-day pharmaceutical science. In the present work, we have studied the kinetic stability and glass-forming ability of the thermally labile quinolone antibiotics using fast scanning calorimetry. The critical cooling rates for avoiding crystallization of the melts of oxolinic and pipemidic acids and sparfloxacin were determined to be 10 000, 40, and 80 K·s-1, respectively. The studied antibiotics were found to be "strong" glass formers. Based on a combination of nonisothermal and isothermal kinetic approaches, the Nakamura model was suitable for describing the crystallization process of the amorphous forms of the quinolone antibiotics.
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Affiliation(s)
- Semen E Lapuk
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
| | - Timur A Mukhametzyanov
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
| | - Christoph Schick
- Institute of Physics, Universität Rostock, Albert-Einstein_Street 23-24, Rostock 18051, DE, Germany
| | - Alexander V Gerasimov
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
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Kipnusu WK, Zhuravlev E, Schick C, Kremer F. The Initial Molecular Interactions in the Course of Enthalpy Relaxation and Nucleation in Polyethylene terephthalate (PET) as Monitored by Combined Nanocalorimetry and FTIR Spectroscopy. MACROMOL CHEM PHYS 2023. [DOI: 10.1002/macp.202200443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- Wycliffe Kiprop Kipnusu
- Peter Debye Institute for Soft Matter Physics Leipzig University Linnestr. 5 04103 Leipzig Germany
| | - Evgeny Zhuravlev
- Universitat Rostock Institute of Physics Albert‐Einstein_str. 23–24 DE 18051 Rostock Germany
| | - Christoph Schick
- Universitat Rostock Institute of Physics Albert‐Einstein_str. 23–24 DE 18051 Rostock Germany
| | - Friedrich Kremer
- Peter Debye Institute for Soft Matter Physics Leipzig University Linnestr. 5 04103 Leipzig Germany
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Andrianov RA, Schmelzer JWP, Androsch R, Mukhametzyanov TA, Schick C. Radial growth rate of near-critical crystal nuclei in poly(l-lactic acid) (PLLA) in Tammann's two-stage development method. J Chem Phys 2023; 158:054504. [PMID: 36754785 DOI: 10.1063/5.0134462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The specific features of crystal nucleation widely determine the morphology of the evolving crystalline material. Crystal nucleation is, as a rule, not accessible by direct observation of the nuclei, which develop with time. This limitation is caused by the small size (nanometer scale) of the critical nuclei and the stochastic nature of their formation. We describe an experimental approach to the determination of specific features of the cluster size distribution employing fast scanning calorimetry at scanning rates up to 10 000 K s-1. The surviving cluster fraction is determined by selectively melting/dissolving clusters smaller than the critical size corresponding to the highest temperature of a short spike positioned between the nucleation and the development stage in Tammann's two-stage method. This approach allows for estimating the time evolution of the radius of the largest detectable clusters in the distribution. Knowing this radius as a function of nucleation time allows for determining a radial growth rate. In the example of poly(l-lactic acid) (PLLA), the order of magnitude estimate of radial growth rates of clusters of about 2-5 nm yields values between 10-5 and 10-3 nm s-1. The radial growth rate of micrometer-sized spherulites is available from optical microscopy. The corresponding values are about three orders of magnitude higher than the values for the nanometer-sized clusters. This difference is explainable by stochastic effects, transient features, and the size dependence of the growth processes on the nanometer scale. The experimental and (order of magnitude) classical nucleation theory estimates agree well.
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Affiliation(s)
- Ruslan A Andrianov
- Department of Physical Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - Jürn W P Schmelzer
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany
| | - René Androsch
- Interdisciplinary Center for Transfer-Oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Timur A Mukhametzyanov
- Department of Physical Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - Christoph Schick
- Department of Physical Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
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Wohlrab J, Bechara FG, Schick C, Naumann M. Hyperhidrosis: A Central Nervous Dysfunction of Sweat Secretion. Dermatol Ther (Heidelb) 2023; 13:453-463. [PMID: 36627476 PMCID: PMC9884722 DOI: 10.1007/s13555-022-00885-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/29/2022] [Indexed: 01/12/2023] Open
Abstract
Hyperhidrosis (HH) is a central nervous dysfunction characterized by abnormally increased sweating due to a central dysregulation of sweat secretion. HH significantly affects the quality of life of patients in their private, social and professional environments. Physiologically, sweating is a mechanism that regulates body temperature, but it may also be triggered by emotional or gustatory stimuli. There are two main types of sweat glands: eccrine and apocrine glands. The central nervous system controls sweat secretion through the release of neurotransmitters into the autonomous nervous system (ANS) that activate the sweat glands. The hypothalamus has two separate neuronal pathways, one for thermoregulation and one for emotions. HH may thus be due to either a neuronal dysfunction of ANS regulation leading to a hyperactivity of the sympathetic nervous system, or to abnormal central processing of emotions. Crucially, there is no dysfunction of the sweat glands themselves. Various pathogenic mechanisms have been proposed to be involved in pathological sweat secretion in HH, ranging from structural changes within the ANS to increased expression of aquaporin 5 and upregulation of activin A receptor type 1 in eccrine sweat glands. Although a genetic predisposition has been demonstrated, it remains unclear exactly which genes are involved. To identify new, potential therapeutic targets and to improve treatment options, a good understanding of the signaling pathways involved, the underlying mechanisms, and the genetic components is essential. In this review we discuss the various aspects of sweat physiology and function that are necessary to explain pathological sweating. Our aim is to raise awareness of the complexity of HH to promote a better understanding of the disorder.
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Affiliation(s)
- Johannes Wohlrab
- Department of Dermatology and Venereology, Martin Luther University Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany.
| | - Falk G Bechara
- Department of Dermatology, Venereology and Allergy, Ruhr University, Bochum, Germany
| | | | - Markus Naumann
- Department of Neurology and Clinical Neurophysiology, University Hospital Augsburg, Augsburg, Germany
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Chua YZ, Zorn R, Schmelzer JWP, Schick C, Holderer O, Zamponi M. Determination of Cooperativity Length in a Glass-Forming Polymer. ACS Phys Chem Au 2023; 3:172-180. [PMID: 36968449 PMCID: PMC10037462 DOI: 10.1021/acsphyschemau.2c00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023]
Abstract
To describe the properties of glass-forming liquids, the concepts of a cooperativity length or the size of cooperatively rearranging regions are widely employed. Their knowledge is of outstanding importance for the understanding of both thermodynamic and kinetic properties of the systems under consideration and the mechanisms of crystallization processes. By this reason, methods of experimental determination of this quantity are of outstanding importance. Proceeding in this direction, we determine the so-called cooperativity number and, based on it, the cooperativity length by experimental measurements utilizing AC calorimetry and quasi-elastic neutron scattering (QENS) at comparable times. The results obtained are different in dependence on whether temperature fluctuations in the considered nanoscale subsystems are either accounted for or neglected in the theoretical treatment. It is still an open question, which of these mutually exclusive approaches is the correct one. As shown in the present paper on the example of poly(ethyl methacrylate) (PEMA), the cooperative length of about 1 nm at 400 K and a characteristic time of ca. 2 μs determined from QENS coincide most consistently with the cooperativity length determined from AC calorimetry measurements if the effect of temperature fluctuations is incorporated in the description. This conclusion indicates that-accounting for temperature fluctuations-the characteristic length can be derived by thermodynamic considerations from the specific parameters of the liquid at the glass transition and that temperature does fluctuate in small subsystems.
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Affiliation(s)
- Yeong Zen Chua
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18051Rostock, Germany
- Competence Centre CALOR, Faculty of Interdisciplinary Research, University of Rostock, Albert-Einstein-Str. 25, 18051Rostock, Germany
| | - Reiner Zorn
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1) and Institute for Biological Information Processing (IBI-8), 52425Jülich, Germany
| | - Jürn W. P. Schmelzer
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18051Rostock, Germany
- Competence Centre CALOR, Faculty of Interdisciplinary Research, University of Rostock, Albert-Einstein-Str. 25, 18051Rostock, Germany
| | - Christoph Schick
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18051Rostock, Germany
- Competence Centre CALOR, Faculty of Interdisciplinary Research, University of Rostock, Albert-Einstein-Str. 25, 18051Rostock, Germany
| | - Olaf Holderer
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Garching85748, Germany
| | - Michaela Zamponi
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Garching85748, Germany
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Lapuk S, Ponomareva M, Ziganshin M, Larionov R, Mukhametzyanov T, Schick C, Lounev I, Gerasimov A. Some aspects of the glass transition of polyvinylpyrrolidone depending on molecular mass. Phys Chem Chem Phys 2023; 25:10706-10714. [PMID: 37000572 DOI: 10.1039/d2cp05972j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Amorphous polymers currently have a wide range of applications, including the production of amorphous solid dispersions in the pharmaceutical industry. This application requires knowledge of the kinetic parameters of the...
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Affiliation(s)
- Semen Lapuk
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
| | - Marina Ponomareva
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
| | - Marat Ziganshin
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
| | - Radik Larionov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
| | - Timur Mukhametzyanov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
| | - Christoph Schick
- Universitat Rostock, Institute of Physics, Albert-Einstein_str. 23-24, Rostock, DE, 18051, Germany
| | - Ivan Lounev
- Department of Radio Electronics, Institute of Physics, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - Alexander Gerasimov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
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9
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Kipnusu WK, Zhuravlev E, Schick C, Kremer F. Homogeneous nucleation in polyamide 66, a two-stage process as revealed by combined nanocalorimetry and IR spectroscopy. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-04980-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractNanocalorimetry and Fourier transform infrared (FTIR) spectroscopy are combined to measure the calorimetric properties and molecular spectra of the same sample (sample amount about 5 ng) of polyamide 66 (PA66). By determining IR difference absorption spectra between a quenched and a sample annealed at varying temperatures (Ta) and annealing time (ta), the initial steps of homogeneous nucleation is for the first time revealed on a molecular scale, long before crystallization takes place. As starting point (i), isolated H-bonds are formed between (N–H) and (C = O) moieties of adjacent (neighboring) polymer segments promoted by far-reaching dipole–dipole interactions. In the second step (ii), the H-bonds realign, which in part requires the opening of already established H-bonds. In stage (i), the FTIR absorption intensity of the free (C = O)f moieties decreases while that of the H-bonded (C = O)b ones increases as a function of Ta at constant ta. This implies an increase in the H-bonding network in amorphous domains. The second stage of nucleation in the studied PA66 is characterized by an increase in the number of (C = O)f and a corresponding decrease in (C = O)b moieties as the sample transitions to the ordered crystalline structure. This is attributed to a change from γ to α polymorphs in PA66. The non-polar methylene units in PA66 are largely unaffected during the nucleation steps, where no changes in the overall heat capacity are detectable, proving that these changes occur prior to the onset of crystal growth.
Graphical abstract
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Lapuk SE, Ponomareva MA, Galukhin AV, Mukhametzyanov TA, Schick C, Gerasimov AV. Glass Transition Kinetics and Physical Aging of Polyvinylpyrrolidones with Different Molecular Masses. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Semen E. Lapuk
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
| | - Marina A. Ponomareva
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
| | - Andrey V. Galukhin
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
| | - Timur A. Mukhametzyanov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
| | - Christoph Schick
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
- Institute of Physics, Universitat Rostock, Albert-Einstein-Str. 23-24, Rostock DE 18051, Germany
| | - Alexander V. Gerasimov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, Kazan 420008, Russia
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Zhang R, Madhavi V, Shaffer TD, Androsch R, Schick C. Cyclic Olefin Copolymers (COC) – Excellent Glass Formers with Low Dynamic Fragility. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rui Zhang
- Institute of Physics and Competence Centre°CALOR University of Rostock Rostock 18051 Germany
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale 06099 Germany
| | | | | | - René Androsch
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale 06099 Germany
| | - Christoph Schick
- Institute of Physics and Competence Centre°CALOR University of Rostock Rostock 18051 Germany
- Butlerov Institute of Chemistry Kazan Federal University 18 Kremlyovskaya Street Kazan 420008 Russia
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Jariyavidyanont K, Du M, Yu Q, Thurn-Albrecht T, Schick C, Androsch R. Bulk enthalpy of melting of poly (l-lactic acid) (PLLA) determined by fast scanning chip calorimetry. Macromol Rapid Commun 2022; 43:e2200148. [PMID: 35343619 DOI: 10.1002/marc.202200148] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/19/2022] [Indexed: 11/11/2022]
Abstract
The bulk enthalpy of melting of α-crystals of poly (l-lactic acid) (PLLA) has been evaluated by fast scanning chip calorimetry (FSC), by analysis of the correlation between the measured enthalpy of melting of sets of samples of different crystallinity and the corresponding heat capacity at 90°C, that is at a temperature higher than the glass transition temperature of the bulk amorphous phase and lower than the melting temperature. Extrapolation of this relationship for crystals formed at 140°C towards the heat capacity of fully solid PLLA yields a value of about 104.5±6 J/g when melting occurs at 180-200°C. The analysis is based on the presence of a two-phase structure, that is, absence of a vitrified rigid amorphous fraction (RAF) at the temperature of analysis of the solid fraction of the material (90°C). Formation and vitrification of an RAF was suppressed by avoiding both continuation of primary crystallization and secondary crystallization during cooling the system from the crystallization temperature of 140°C to 90°C, making use of the high cooling capacity of FSC. Small-angle X-ray scattering (SAXS) confirmed distinct thickening of initially grown lamellae which only is possible if these lamellae are not surrounded by a glassy RAF. Linear crystallinity values obtained by SAXS and calorimetrically determined enthalpy-based crystallinities agree close to each other. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, 06099, Germany
| | - Mengxue Du
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, 06099, Germany
| | - Qiang Yu
- Institute of Physics, Martin Luther University Halle-Wittenberg, Halle/Saale, 06099, Germany
| | - Thomas Thurn-Albrecht
- Institute of Physics, Martin Luther University Halle-Wittenberg, Halle/Saale, 06099, Germany
| | - Christoph Schick
- University of Rostock, Institute of Physics and Competence Center CALOR, Albert-Einstein-Str. 23-24, Rostock, 18059, Germany.,Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan, 420008, Russia
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, 06099, Germany
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Chong CCW, Chennapragada SM, Schick C, McAuliffe W, Schlaphoff G, Lodh S, Whitley J, Cheung A. The 'Sic Vos non Vobis' of Interventional Radiology - Rebranding and modernising the Interventional Specialities of Radiology in Australia and New Zealand. J Med Imaging Radiat Oncol 2022; 66:423-427. [PMID: 35107218 PMCID: PMC9303623 DOI: 10.1111/1754-9485.13380] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/04/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Colin Chun Wai Chong
- Department of Radiology, Macquarie University Hospital, Sydney, New South Wales, Australia.,Department of Medical Imaging, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.,School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
| | - Satyanarayana Murthy Chennapragada
- Department of Medical Imaging, SCHN-Westmead, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Christoph Schick
- Department of Radiology, Northland District Health Board, Whangarei, New Zealand
| | - William McAuliffe
- Neurological Intervention & Imaging Service of Western Australia, Nedlands, Western Australia, Australia
| | - Glen Schlaphoff
- Department of Interventional Radiology, Liverpool Hospital, Sydney, New South Wales, Australia
| | - Suhrid Lodh
- Department of Radiology, St George Hospital, Sydney, New South Wales, Australia.,St George & Sutherland Clinical School, UNSW Sydney, Sydney, New South Wales, Australia
| | - Justin Whitley
- Department of Interventional Radiology, Liverpool Hospital, Sydney, New South Wales, Australia.,Department of Radiology, St George Hospital, Sydney, New South Wales, Australia.,Neurointervention, Institute of Neurological Sciences, Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Andrew Cheung
- Department of Interventional Radiology, Liverpool Hospital, Sydney, New South Wales, Australia.,Neurointervention, Institute of Neurological Sciences, Prince of Wales Hospital, Sydney, New South Wales, Australia.,Ingham Institute for Applied Medical Research, Sydney, New South Wales, Australia.,South West Sydney Clinical Campuses, UNSW Sydney, Sydney, New South Wales, Australia
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14
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Zhang R, Jariyavidyanont K, Zhuravlev E, Schick C, Androsch R. Zero-Entropy-Production Melting Temperature of Crystals of Poly(butylene succinate) Formed at High Supercooling of the Melt. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rui Zhang
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Evgeny Zhuravlev
- Institute of Physics, University of Rostock, 18051 Rostock, Germany
| | - Christoph Schick
- Institute of Physics, University of Rostock, 18051 Rostock, Germany
- Department of Physical Chemistry, Kazan Federal University, Kazan 420008, Russia
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
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15
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Zhang R, Jariyavidyanont K, Du M, Zhuravlev E, Schick C, Androsch R. Nucleation and crystallization kinetics of polyamide 12 investigated by fast scanning calorimetry. Journal of Polymer Science 2021. [DOI: 10.1002/pol.20210813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rui Zhang
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale Germany
| | - Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale Germany
| | - Mengxue Du
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale Germany
| | - Evgeny Zhuravlev
- Institute of Physics and Competence Centre CALOR University of Rostock Rostock Germany
| | - Christoph Schick
- Institute of Physics and Competence Centre CALOR University of Rostock Rostock Germany
- Butlerov Institute of Chemistry Kazan Federal University Kazan Russia
| | - René Androsch
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences (IWE TFN) Martin Luther University Halle‐Wittenberg Halle/Saale Germany
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16
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Affiliation(s)
- Andrew Clark
- Department of Physics and Astronomy, Tufts University, Medford 02155-5801, Massachusetts, United States
| | - Yajnaseni Biswas
- Department of Chemical and Biological Engineering, Tufts University, Medford 02155-5801, Massachusetts, United States
| | - Morgan E. Taylor
- Department of Chemical and Biological Engineering, Tufts University, Medford 02155-5801, Massachusetts, United States
| | - Ayşe Asatekin
- Department of Chemical and Biological Engineering, Tufts University, Medford 02155-5801, Massachusetts, United States
| | - Matthew J. Panzer
- Department of Chemical and Biological Engineering, Tufts University, Medford 02155-5801, Massachusetts, United States
| | - Christoph Schick
- University of Rostock, Institute of Physics and Competence Centre CALOR, Albert-Einstein-Str. 23-24, Rostock 18059, Germany
- Kazan Federal University, Institute of Chemistry, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - Peggy Cebe
- Department of Physics and Astronomy, Tufts University, Medford 02155-5801, Massachusetts, United States
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17
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Mukhametzyanov T, Schmelzer JW, Yarko E, Abdullin A, Ziganshin M, Sedov I, Schick C. Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL). Polymers (Basel) 2021; 13:polym13213617. [PMID: 34771173 PMCID: PMC8588086 DOI: 10.3390/polym13213617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022] Open
Abstract
The crystal nucleation and overall crystallization kinetics of cross-linked poly(ε-caprolactone) was studied experimentally by fast scanning calorimetry in a wide temperature range. With an increasing degree of cross-linking, both the nucleation and crystallization half-times increase. Concurrently, the glass transition range shifts to higher temperatures. In contrast, the temperatures of the maximum nucleation and the overall crystallization rates remain the same, independent of the degree of cross-linking. The cold crystallization peak temperature generally increases as a function of heating rate, reaching an asymptotic value near the temperature of the maximum growth rate. A theoretical interpretation of these results is given in terms of classical nucleation theory. In addition, it is shown that the average distance between the nearest cross-links is smaller than the estimated lamellae thickness, which indicates the inclusion of cross-links in the crystalline phase of the polymer.
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Affiliation(s)
- Timur Mukhametzyanov
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
- Correspondence: (T.M.); (C.S.); Tel.: +7-903-343-9026 (T.M.); +49-381-498-6880 (C.S.)
| | - Jürn W.P. Schmelzer
- Institute of Physics and Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany;
| | - Egor Yarko
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
| | - Albert Abdullin
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
| | - Marat Ziganshin
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
| | - Igor Sedov
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
| | - Christoph Schick
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia; (E.Y.); (A.A.); (M.Z.); (I.S.)
- Institute of Physics and Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany;
- Correspondence: (T.M.); (C.S.); Tel.: +7-903-343-9026 (T.M.); +49-381-498-6880 (C.S.)
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18
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Govinna ND, Sadeghi I, Schick C, Asatekin A, Cebe P. Crystallization kinetics, polymorphism fine tuning, and rigid amorphous fraction of poly(vinylidene fluoride) blends. Polymer Crystallization 2021. [DOI: 10.1002/pcr2.10205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nelaka Dilshan Govinna
- Department of Physics and Astronomy, Center for Nanoscopic Physics Tufts University Medford Massachusetts USA
| | - Ilin Sadeghi
- Department of Chemical and Biological Engineering Science and Technology Center Medford Massachusetts USA
| | - Christoph Schick
- University of Rostock Institute of Physics and Competence Center CALOR° Rostock Germany
- Kazan Federal University Institute of Chemistry Kazan Russian Federation
| | - Ayse Asatekin
- Department of Chemical and Biological Engineering Science and Technology Center Medford Massachusetts USA
| | - Peggy Cebe
- Department of Physics and Astronomy, Center for Nanoscopic Physics Tufts University Medford Massachusetts USA
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19
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Toda A, Androsch R, Schick C. Melting Kinetics of Superheated Polymer Crystals Examined by Isothermal and Nonisothermal Fast Scanning Calorimetry. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akihiko Toda
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale 06099, Germany
| | - Christoph Schick
- Institute of Physics and Competence Centre CALOR, University of Rostock, Rostock 18059, Germany
- Butlerov Institute of Chemistry, Kazan Federal University, Kazan 420008, Russia
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20
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Androsch R, Toda A, Furushima Y, Schick C. Insertion‐Crystallization‐Induced Low‐Temperature Annealing Peaks in Melt‐Crystallized Poly(
l
‐Lactic Acid). MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- René Androsch
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences Martin Luther University Halle‐Wittenberg Saale Halle 06099 Germany
| | - Akihiko Toda
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi Hiroshima 739‐8521 Japan
| | - Yoshitomo Furushima
- Materials Characterization Laboratories Toray Research Center Inc. 3–7, Sonoyama 3‐chome Otsu Shiga 520‐8567 Japan
| | - Christoph Schick
- Institute of Physics and Competence Center CALOR University of Rostock Rostock 18051 Germany
- Butlerov Institute of Chemistry Kazan Federal University 18 Kremlyovskaya Street Kazan 420008 Russia
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21
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Jariyavidyanont K, Janke A, Tariq M, Di Lorenzo ML, Schick C, Androsch R. Thermal Stability and Nucleation Efficacy of Shear-Induced Pointlike and Shishlike Crystallization Precursors. ACS Macro Lett 2021; 10:684-689. [PMID: 35549104 DOI: 10.1021/acsmacrolett.1c00101] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The different thermal stabilities of shear-induced pointlike and shishlike crystallization precursors of polyamide 11, generated in a parallel-plate rheometer and coexisting in the same sample, were quantified by hot-stage microscopy, by performing self-seed crystallization experiments. Crystals formed at low supercooling of the melt from these different types of precursors melt at about the same temperature. Annealing of the melt at different temperatures for a predefined time revealed dissolution/disordering of these precursors at 10-15 K higher temperature, near the equilibrium melting point. Despite their similar thermal stabilities, pointlike and shishlike crystallization precursors exhibit distinctly different nucleation efficacies. Under identical crystallization conditions, shishlike precursors cause faster crystallization than pointlike crystal nuclei. The faster crystallization of the shishlike nuclei can be explained, for example, by (a) the larger size of the shishlike precursors, providing numerous nucleation sites; (b) the more perfect chain conformation at the shish surface, which serves as a substrate for crystallization; or perhaps (c) the higher local orientation of the surrounding melt compared with molecular segments near pointlike nuclei, reducing the activation energy for crystallization.
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Affiliation(s)
- Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer-Oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Muhammad Tariq
- Institute of Physics, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
| | - Maria Laura Di Lorenzo
- Institute of Polymers, Composites and Biomaterials (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy
| | - Christoph Schick
- Institute of Physics, University of Rostock, 18051 Rostock, Germany
- Department of Physical Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - René Androsch
- Interdisciplinary Center for Transfer-Oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
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22
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Peng Q, Yang B, Milkereit B, Liu D, Springer A, Rettenmayr M, Schick C, Keßler O. Nucleation Behavior of a Single Al-20Si Particle Rapidly Solidified in a Fast Scanning Calorimeter. Materials (Basel) 2021; 14:2920. [PMID: 34071567 PMCID: PMC8199230 DOI: 10.3390/ma14112920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022]
Abstract
Understanding the rapid solidification behavior characteristics, nucleation undercooling, and nucleation mechanism is important for modifying the microstructures and properties of metal alloys. In order to investigate the rapid solidification behavior in-situ, accurate measurements of nucleation undercooling and cooling rate are required in most rapid solidification processes, e.g., in additive manufacturing (AM). In this study, differential fast scanning calorimetry (DFSC) was applied to investigate the nucleation kinetics in a single micro-sized Al-20Si (mass%) particle under a controlled cooling rate of 5000 K/s. The nucleation rates of primary Si and secondary α-Al phases were calculated by a statistical analysis of 300 identical melting/solidification experiments. Applying a model based on the classical nucleation theory (CNT) together with available thermodynamic data, two different heterogeneous nucleation mechanisms of primary Si and secondary α-Al were proposed, i.e., surface heterogeneous nucleation for primary Si and interface heterogenous nucleation for secondary α-Al. The present study introduces a practical method for a detailed investigation of rapid solidification behavior of metal particles to distinguish surface and interface nucleation.
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Affiliation(s)
- Qin Peng
- Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 2, 18059 Rostock, Germany; (Q.P.); (B.M.); (O.K.)
| | - Bin Yang
- Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 2, 18059 Rostock, Germany; (Q.P.); (B.M.); (O.K.)
- Competence Centre °CALOR, Department Life, Light & Matter, University of Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany;
| | - Benjamin Milkereit
- Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 2, 18059 Rostock, Germany; (Q.P.); (B.M.); (O.K.)
- Competence Centre °CALOR, Department Life, Light & Matter, University of Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany;
| | - Dongmei Liu
- Otto Schott Institute of Materials Research, Friedrich-Schiller-University Jena, Löbdergraben 32, 07743 Jena, Germany; (D.L.); (M.R.)
| | - Armin Springer
- Medical Biology and Electron Microscopy Centre, University Medicine Rostock, Strempelstr. 14, 18057 Rostock, Germany;
| | - Markus Rettenmayr
- Otto Schott Institute of Materials Research, Friedrich-Schiller-University Jena, Löbdergraben 32, 07743 Jena, Germany; (D.L.); (M.R.)
| | - Christoph Schick
- Competence Centre °CALOR, Department Life, Light & Matter, University of Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany;
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23–24, 18059 Rostock, Germany
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, 420008 Kazan, Russia
| | - Olaf Keßler
- Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 2, 18059 Rostock, Germany; (Q.P.); (B.M.); (O.K.)
- Competence Centre °CALOR, Department Life, Light & Matter, University of Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany;
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23
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Affiliation(s)
- Christoph Schick
- Institute of Physics and Competence Center CALOR, University of Rostock, 18051 Rostock, Germany
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
| | - Akihiko Toda
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
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24
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Szymoniak P, Qu X, Abbasi M, Pauw BR, Henning S, Li Z, Wang DY, Schick C, Saalwächter K, Schönhals A. Spatial inhomogeneity, interfaces and complex vitrification kinetics in a network forming nanocomposite. Soft Matter 2021; 17:2775-2790. [PMID: 33543739 DOI: 10.1039/d0sm01992e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A detailed calorimetric study on an epoxy-based nanocomposite system was performed employing bisphenol A diglycidyl ether (DGEBA) cured with diethylenetriamine (DETA) as the polymer matrix and a taurine-modified MgAL layered double hydroxide (T-LDH) as the nanofiller. The -NH2 group of taurine can react with DGEBA improving the interaction of the polymer with the filler. The combined X-ray scattering and electron microscopy data showed that the nanocomposite has a partially exfoliated morphology. Calorimetric studies were performed using conventional DSC, temperature modulated DSC (TMDSC) and fast scanning calorimetry (FSC) in the temperature modulated approach (TMFSC) to investigate the vitrification and molecular mobility dependent on the filler concentration. First, TMDSC and NMR were used to estimate the amount of the rigid amorphous fraction which consists of immobilized polymer segments at the nanoparticle surface. It was found to be 40 wt% for the highest filler concentration, indicating that the interface dominates the overall macroscopic properties and behavior of the material to a great extent. Second, the relaxation rates of the α-relaxation obtained by TMDSC and TMFSC were compared with the thermal and dielectric relaxation rates measured by static FSC. The investigation revealed that the system shows two distinct α-relaxation processes. Furthermore, two separate vitrification mechanisms were also found for a bulk network-former without geometrical confinement as also confirmed by NMR. This was discussed in terms of the intrinsic spatial heterogeneity on a molecular scale, which becomes more pronounced with increasing nanofiller content.
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Affiliation(s)
- Paulina Szymoniak
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Xintong Qu
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Mozhdeh Abbasi
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle, Germany
| | - Brian R Pauw
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Sven Henning
- Fraunhofer-Institut für Mikrostruktur von Werkstoffen und Systemen IMWS, Walter-Hülse-Str. 1, 06120 Halle, Germany
| | - Zhi Li
- IMDEA Materials Institute, Eric Kandel 2, 28906 Getafe, Madrid, Spain
| | - De-Yi Wang
- IMDEA Materials Institute, Eric Kandel 2, 28906 Getafe, Madrid, Spain
| | - Christoph Schick
- University of Rostock, Institute of Physics and Competence Center CALOR, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany and A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russian Federation
| | - Kay Saalwächter
- Institut für Physik - NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle, Germany
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
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25
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Lapuk SE, Mukhametzyanov TA, Schick C, Gerasimov AV. Crystallization kinetics and glass-forming ability of rapidly crystallizing drugs studied by Fast Scanning Calorimetry. Int J Pharm 2021; 599:120427. [PMID: 33662469 DOI: 10.1016/j.ijpharm.2021.120427] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/09/2021] [Accepted: 02/20/2021] [Indexed: 11/16/2022]
Abstract
The use of the amorphous forms of drugs is a modern approach for the enhancement of bioavailability. At the same time, the high cooling rate needed to obtain the metastable amorphous state often prevents its investigation using conventional laboratory methods such as differential scanning calorimetry, X-ray powder diffractometry. One of the ways to overcome this problem may be the application of Fast Scanning Calorimetry. This method allows direct determination of the critical cooling rate of the melt and kinetic parameters of the crystallization for bad glass formers. In the present work, the amorphous states of dopamine hydrochloride and atenolol were created using Fast Scanning Calorimetry for the first time. Critical cooling rates and glass transition temperatures of these drugs were determined. Based on the values of the kinetic fragility parameter, dopamine hydrochloride glass can be considered strong, while atenolol glass is moderately strong. Both model-based and model-free approaches were employed to determine the kinetic parameters of cold crystallization of dopamine and atenolol. The results were compared with the data from isothermal crystallization experiments. The Nakamura crystallization model provides the best description of the crystallization process and can be used to predict the long term stability of the amorphous forms of the drugs. The presented approaches may find applications in predicting the storage time and choosing the optimal storage conditions of the amorphous drugs prone to crystallization.
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Affiliation(s)
- S E Lapuk
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - T A Mukhametzyanov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - C Schick
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia
| | - A V Gerasimov
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, 420008, Kremlevskaya, 18, Kazan, Russia.
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26
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Do HT, Chua YZ, Habicht J, Klinksiek M, Volpert S, Hallermann M, Thome M, Pabsch D, Zaitsau D, Schick C, Held C. Melting Properties of Peptides and Their Solubility in Water. Part 2: Di- and Tripeptides Based on Glycine, Alanine, Leucine, Proline, and Serine. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05652] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hoang Tam Do
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Yeong Zen Chua
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, Rostock 18051, Germany
- Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 25, Rostock 18051, Germany
| | - Jonas Habicht
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Marcel Klinksiek
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Sophia Volpert
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Moritz Hallermann
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Max Thome
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Daniel Pabsch
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
| | - Dzmitry Zaitsau
- Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 25, Rostock 18051, Germany
- Institute of Chemistry, University of Rostock, Dr-Lorenz-Weg 2, Rostock 18051, Germany
| | - Christoph Schick
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, Rostock 18051, Germany
- Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 25, Rostock 18051, Germany
- Chemical Institute A. M. Butlerov, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - Christoph Held
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, Dortmund 44227, Germany
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27
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Schote AB, Schiel F, Schmitt B, Winnikes U, Frank N, Gross K, Croyé MA, Tarragon E, Bekhit A, Bobbili DR, May P, Schick C, Meyer J. Genome-wide linkage analysis of families with primary hyperhidrosis. PLoS One 2020; 15:e0244565. [PMID: 33378362 PMCID: PMC7773265 DOI: 10.1371/journal.pone.0244565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/11/2020] [Indexed: 12/17/2022] Open
Abstract
Primary focal hyperhidrosis (PFH, OMIM %144110) is a genetically influenced condition characterised by excessive sweating. Prevalence varies between 1.0-6.1% in the general population, dependent on ethnicity. The aetiology of PFH remains unclear but an autosomal dominant mode of inheritance, incomplete penetrance and variable phenotypes have been reported. In our study, nine pedigrees (50 affected, 53 non-affected individuals) were included. Clinical characterisation was performed at the German Hyperhidrosis Centre, Munich, by using physiological and psychological questionnaires. Genome-wide parametric linkage analysis with GeneHunter was performed based on the Illumina genome-wide SNP arrays. Haplotypes were constructed using easyLINKAGE and visualised via HaploPainter. Whole-exome sequencing (WES) with 100x coverage in 31 selected members (24 affected, 7 non-affected) from our pedigrees was achieved by next generation sequencing. We identified four genome-wide significant loci, 1q41-1q42.3, 2p14-2p13.3, 2q21.2-2q23.3 and 15q26.3-15q26.3 for PFH. Three pedigrees map to a shared locus at 2q21.2-2q23.3, with a genome-wide significant LOD score of 3.45. The chromosomal region identified here overlaps with a locus at chromosome 2q22.1-2q31.1 reported previously. Three families support 1q41-1q42.3 (LOD = 3.69), two families share a region identical by descent at 2p14-2p13.3 (LOD = 3.15) and another two families at 15q26.3 (LOD = 3.01). Thus, our results point to considerable genetic heterogeneity. WES did not reveal any causative variants, suggesting that variants or mutations located outside the coding regions might be involved in the molecular pathogenesis of PFH. We suggest a strategy based on whole-genome or targeted next generation sequencing to identify causative genes or variants for PFH.
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Affiliation(s)
- Andrea B. Schote
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Florian Schiel
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Benedikt Schmitt
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Ulrike Winnikes
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Nicole Frank
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Katharina Gross
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Marie-Anne Croyé
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Ernesto Tarragon
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
| | - Adam Bekhit
- Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University, Homburg, Germany
| | - Dheeraj Reddy Bobbili
- Bioinformatics Core, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Megeno, Esch-sur-Alzette, Luxembourg
| | - Patrick May
- Bioinformatics Core, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | | | - Jobst Meyer
- Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, Trier, Germany
- * E-mail:
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Gloger D, Mileva D, Zhuravlev E, Schick C. A
DSC
study of polypropylene chain branching effects on structure formation under rapid cooling and reheating from the amorphous glass. Polymer Crystallization 2020. [DOI: 10.1002/pcr2.10142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Christoph Schick
- Institute of Physics and Department Life, Light & Matter, Competence Center °CALOR, University of Rostock, Rostock 18051, Germany
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, Halle/Saale 06099, Germany
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Jariyavidyanont K, Zhuravlev E, Schick C, Androsch R. Kinetics of homogeneous crystal nucleation of polyamide 11 near the glass transition temperature. Polymer Crystallization 2020. [DOI: 10.1002/pcr2.10149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences Martin Luther University Halle‐Wittenberg Halle/Saale Germany
| | | | - Christoph Schick
- Institute of Physics University of Rostock Rostock Germany
- Department of Physical Chemistry Kazan Federal University Kazan Russia
| | - René Androsch
- Interdisciplinary Center for Transfer‐oriented Research in Natural Sciences Martin Luther University Halle‐Wittenberg Halle/Saale Germany
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31
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Furushima Y, Toda A, Schick C. Effect of multi-step annealing above the glass transition temperature on the crystallization and melting kinetics of semicrystalline polymers. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Zhang R, Zhuravlev E, Schmelzer JWP, Androsch R, Schick C. Steady-State Crystal Nucleation Rate of Polyamide 66 by Combining Atomic Force Microscopy and Fast-Scanning Chip Calorimetry. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00574] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rui Zhang
- Institute of Physics and Competence Centre °CALOR, University of Rostock, Rostock 18051, Germany
| | - Evgeny Zhuravlev
- Institute of Physics and Competence Centre °CALOR, University of Rostock, Rostock 18051, Germany
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of Ministry of Education, and The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
- Shenyang Research Institute, Nanjing University, Shenyang 224300, China
| | - Jürn W. P. Schmelzer
- Institute of Physics and Competence Centre °CALOR, University of Rostock, Rostock 18051, Germany
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, Halle/Saale 06099, Germany
| | - Christoph Schick
- Institute of Physics and Competence Centre °CALOR, University of Rostock, Rostock 18051, Germany
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
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33
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Anton AM, Zhuravlev E, Kossack W, Andrianov R, Schick C, Kremer F. Fingerprints of homogeneous nucleation and crystal growth in polyamide 66 as studied by combined infrared spectroscopy and fast scanning chip calorimetry. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04666-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractHomogenous crystal nucleation and growth in polyamide 66 (PA66) are followed in situ by means of a combination of FTIR spectroscopy and fast scanning chip calorimetry (FSC). Therefore, a novel setup with a calorimetry chip equipped with an IR-transparent SiN membrane was developed, which enables to examine IR spectroscopic and FSC experiments on the identical specimen. Because of the small amount of sample material (~ 100 ng), it is possible to achieve heating and cooling rates up to 5000 Ks−1, and hence to quench the sample into a fully amorphous state without quenched-in homogeneous crystal nuclei. Annealing the film then allows to determine the onset of homogenous nucleation and crystal growth by means of FSC, whereas molecular interactions are unraveled by FTIR spectroscopy. It is demonstrated that different moieties of PA66 respond distinctly during crystallization; far-reaching interactions such as hydrogen bonding are established prior to onset of short-range steric hindrance.
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34
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Quattrosoldi S, Lotti N, Soccio M, Schick C, Androsch R. Stability of Crystal Nuclei of Poly (butylene isophthalate) Formed Near the Glass Transition Temperature. Polymers (Basel) 2020; 12:polym12051099. [PMID: 32403402 PMCID: PMC7285351 DOI: 10.3390/polym12051099] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 11/16/2022] Open
Abstract
Tammann’s two-stage crystal-nuclei-development method is applied for analysis of the thermal stability of homogenously formed crystal nuclei of poly(butylene isophthalate) (PBI) as well as their possible reorganization on transferring them to the growth temperature, using fast scanning chip calorimetry. Crystal nuclei were formed at 50 °C, that is, at a temperature only slightly higher than the glass transition temperature, and developed to crystals within a pre-defined time at the growth temperature of 85 °C. The number of nuclei, overcritical at the growth temperature, was detected as a function of the transfer-conditions (maximum temperature, heating rate) by evaluation of the developed crystal fraction. For different size-distributions of crystal nuclei, as controlled by the nucleation time, there is detected distinct reduction of the nuclei number on heating to maximum temperatures higher than about 90 to 110 °C, with the latter value holding for longer nucleation time. Longer nucleation allows for both increasing the absolute nuclei number and generation of an increased fraction of larger nuclei. Heating at 1000 K/s to 140–150 °C causes “melting” of even the most stable nuclei. While direct transfer of crystal nuclei from the nucleation temperature (50 °C) to the growth temperature (85 °C) reveals negligible effect of the transfer-heating rate, in-between heating to higher temperatures is connected with distinct nuclei-reorganization above 85 °C on heating slower than 1000–10.000 K/s. The performed study not only provides specific valuable information about the thermal characteristics of crystal nuclei of PBI but also highlights the importance of proper design of Tammann’s nuclei development experiment for analysis of nuclei numbers. With the evaluation of critical rates of temperature-change for suppression of non-isothermal formation of both nuclei and crystals, the kinetics of crystallization of the slow crystallizing PBI is further quantified.
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Affiliation(s)
- Silvia Quattrosoldi
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (S.Q.); (N.L.); (M.S.)
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (S.Q.); (N.L.); (M.S.)
| | - Michelina Soccio
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (S.Q.); (N.L.); (M.S.)
| | - Christoph Schick
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, 420008 Kazan, Russia;
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
- Correspondence:
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35
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Andrianov RA, Androsch R, Zhang R, Mukhametzyanov TA, Abyzov AS, Schmelzer JW, Schick C. Growth and dissolution of crystal nuclei in poly(l-lactic acid) (PLLA) in Tammann's development method. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122453] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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Ding Q, Janke A, Schick C, Androsch R. Morphology of α-crystals of poly (butylene 2,6-naphthalate) crystallized via a liquid crystalline mesophase according to Ostwald's rule of stages. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Gabdulkhaev MN, Ziganshin MA, Buzyurov AV, Schick C, Solovieva SE, Popova EV, Gubaidullin AT, Gorbatchuk VV. Smart control of calixarene polymorphic states. CrystEngComm 2020. [DOI: 10.1039/d0ce01070g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Solid calixarene is switched to the stable and metastable polymorphs by exposure to guest vapors in binary and ternary systems.
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Affiliation(s)
| | - Marat A. Ziganshin
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Aleksey V. Buzyurov
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Christoph Schick
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
- Institute of Physics
| | - Svetlana E. Solovieva
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
- A.E. Arbuzov Institute of Organic and Physical Chemistry
| | - Elena V. Popova
- A.E. Arbuzov Institute of Organic and Physical Chemistry
- 420088 Kazan
- Russia
| | | | - Valery V. Gorbatchuk
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
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38
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Do HT, Chua YZ, Kumar A, Pabsch D, Hallermann M, Zaitsau D, Schick C, Held C. Melting properties of amino acids and their solubility in water. RSC Adv 2020; 10:44205-44215. [PMID: 35517171 PMCID: PMC9058464 DOI: 10.1039/d0ra08947h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/25/2020] [Indexed: 11/21/2022] Open
Abstract
The state-of-the-art unit operation for separation and purification of amino acids is still crystallization, which requires solubility data and melting properties of pure compounds. Since measuring solubility is time-consuming, prediction tools are desired. Further, melting properties are not yet available due to decomposition of amino acids upon slow heating. In this work, melting properties of twenty amino acids (except Met) were measured by Fast Scanning Calorimetry (FSC) with heating rates up to 20 000 K s−1. PC-SAFT was used to predict interactions in amino acid + water systems. Additionally, solubility, pH, and PXRD was measured. By combining FSC and PC-SAFT, the solubility of 15 amino acids was successfully predicted in a wide temperature range in good agreement with the experimental data. Thus, this work provides melting properties of amino acids for the first time and highlights the usefulness of such data to predict material properties such as aqueous solubility of amino acids. We report the melting properties of amino acids for the first time and highlight the usefulness of such data to predict material properties such as aqueous solubility of amino acids.![]()
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Affiliation(s)
- Hoang Tam Do
- Laboratory of Thermodynamics
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Yeong Zen Chua
- Institute of Physics
- University of Rostock
- 18051 Rostock
- Germany
- Competence Centre CALOR
| | - Aarti Kumar
- Laboratory of Thermodynamics
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Daniel Pabsch
- Laboratory of Thermodynamics
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Moritz Hallermann
- Laboratory of Thermodynamics
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Dzmitry Zaitsau
- Competence Centre CALOR
- University of Rostock
- 18051 Rostock
- Germany
- Institute of Chemistry
| | - Christoph Schick
- Institute of Physics
- University of Rostock
- 18051 Rostock
- Germany
- Competence Centre CALOR
| | - Christoph Held
- Laboratory of Thermodynamics
- TU Dortmund University
- 44227 Dortmund
- Germany
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39
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Lapuk S, Mukhametzyanov T, Schick C, Gerasimov A. Kinetic stability of amorphous dipyridamole: A fast scanning calorimetry investigation. Int J Pharm 2020; 574:118890. [DOI: 10.1016/j.ijpharm.2019.118890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/15/2019] [Accepted: 11/16/2019] [Indexed: 01/10/2023]
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40
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Abdelaziz A, Zaitsau DH, Buzyurov AV, Verevkin SP, Schick C. Sublimation thermodynamics of nucleobases derived from fast scanning calorimetry. Phys Chem Chem Phys 2020; 22:838-853. [DOI: 10.1039/c9cp04761a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Fast scanning calorimetry was utilized to measure the sublimation thermodynamics of nucleobases. The results were rationalized at the molecular level.
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Affiliation(s)
- A. Abdelaziz
- University of Rostock
- Institute of Physics
- 18059 Rostock
- Germany
- University of Rostock
| | - D. H. Zaitsau
- University of Rostock
- Faculty of Interdisciplinary Research
- Competence Centre CALOR
- 18059 Rostock
- Germany
| | | | - S. P. Verevkin
- University of Rostock
- Faculty of Interdisciplinary Research
- Competence Centre CALOR
- 18059 Rostock
- Germany
| | - C. Schick
- University of Rostock
- Institute of Physics
- 18059 Rostock
- Germany
- University of Rostock
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41
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Leng J, Szymoniak P, Kang NJ, Wang DY, Wurm A, Schick C, Schönhals A. Influence of interfaces on the crystallization behavior and the rigid amorphous phase of poly(l-lactide)-based nanocomposites with different layered doubled hydroxides as nanofiller. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121929] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Androsch R, Jariyavidyanont K, Schick C. Enthalpy Relaxation of Polyamide 11 of Different Morphology Far Below the Glass Transition Temperature. Entropy 2019. [PMCID: PMC7514315 DOI: 10.3390/e21100984] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Polyamide 11 (PA 11) samples of different supermolecular structure, including the crystal-free glass and semi-crystalline PA 11 of largely different semi-crystalline morphology, were prepared by fast scanning chip calorimetry (FSC). These samples were then annealed at different temperatures well below the glass transition temperature Tg. The main purpose of the low-temperature annealing experiments was the calorimetric detection of mobility of chain segments at temperatures as low as −40 °C (≈Tg − 80 K) where still excellent impact resistance is predicted. It was found that annealing PA 11 at such low temperature, regardless the thermal history and supermolecular structure including crystallinity as well as crystal shape and size, permits distinct enthalpy relaxation at rather short time scale with the structural changes reverting on subsequent heating as detected with pronounced sub-Tg-enthalpy-recovery peaks. The main glass transition, associated to large-amplitude segmental mobility, as well as relaxations at temperatures only slightly below Tg are even more distinctly sensitive to the crystal morphology. In contrast to spherulitically grown lamellar crystals, presence of high-specific-surface area nanometer-sized ordered domains causes a shift of the glass transition temperature of the amorphous phase to higher temperature, proving stronger coupling of ordered and amorphous phases than in case of lamellae. In addition, the increased coupling of the crystalline and amorphous phases slows down the cooperative rearrangements on annealing the glass slightly below Tg. The performed study contributes to further understanding of the spectrum of structural relaxations in PA 11 including the effect of presence of crystals. Enthalpy relaxation and consequently the reduction of entropy at temperatures slightly below Tg strongly depends on the semi-crystalline morphology, while an only minor effect is seen on low-temperature annealing at Tg − 80 K, possibly indicating different molecular mechanisms for the processes occurring in both temperature ranges. The low-temperature process even seems proceeding in the crystalline fraction of the material.
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Affiliation(s)
- René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany;
- Correspondence:
| | - Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany;
| | - Christoph Schick
- Institute of Physics and Competence Center CALOR, University of Rostock, Albert-Einstein-Str. 23–24, 18059 Rostock, Germany;
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
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43
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Yin H, Yang B, Chua YZ, Szymoniak P, Carta M, Malpass-Evans R, McKeown NB, Harrison WJ, Budd PM, Schick C, Böhning M, Schönhals A. Effect of Backbone Rigidity on the Glass Transition of Polymers of Intrinsic Microporosity Probed by Fast Scanning Calorimetry. ACS Macro Lett 2019; 8:1022-1028. [PMID: 35619481 DOI: 10.1021/acsmacrolett.9b00482] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polymers of Intrinsic Microporosity (PIMs) of high performance have developed as materials with a wide application range in gas separation and other energy-related fields. Further optimization and long-term behavior of devices with PIMs require an understanding of the structure-property relationships, including physical aging. In this context, the glass transition plays a central role, but with conventional thermal analysis a glass transition is usually not detectable for PIMs before their thermal decomposition. Fast scanning calorimetry provides evidence of the glass transition for a series of PIMs, as the time scales responsible for thermal degradation and for the glass transition are decoupled by employing ultrafast heating rates of tens of thousands K s-1. The investigated PIMs were chosen considering the chain rigidity. The estimated glass transition temperatures follow the order of the rigidity of the backbone of the PIMs.
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Affiliation(s)
- Huajie Yin
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Bin Yang
- University of Rostock, Institute of Physics and Competence Center CALOR, Albert-Einstein-Str. 23−24, 18059 Rostock, Germany
| | - Yeong Zen Chua
- University of Rostock, Institute of Physics and Competence Center CALOR, Albert-Einstein-Str. 23−24, 18059 Rostock, Germany
| | - Paulina Szymoniak
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Mariolino Carta
- Department of Chemistry, College of Science, Swansea University, Singleton Park, Swansea, Wales SA2 8PP, United Kingdom
| | - Richard Malpass-Evans
- EastChem, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Neil B. McKeown
- EastChem, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Wayne J. Harrison
- School of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Peter M. Budd
- School of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Christoph Schick
- University of Rostock, Institute of Physics and Competence Center CALOR, Albert-Einstein-Str. 23−24, 18059 Rostock, Germany
| | - Martin Böhning
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
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45
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Minakov AA, Schick C. Nanoscale Heat Conduction in CNT-POLYMER Nanocomposites at Fast Thermal Perturbations. Molecules 2019; 24:molecules24152794. [PMID: 31370312 PMCID: PMC6696361 DOI: 10.3390/molecules24152794] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/22/2019] [Accepted: 07/26/2019] [Indexed: 11/30/2022] Open
Abstract
Nanometer scale heat conduction in a polymer/carbon nanotube (CNT) composite under fast thermal perturbations is described by linear integrodifferential equations with dynamic heat capacity. The heat transfer problem for local fast thermal perturbations around CNT is considered. An analytical solution for the nonequilibrium thermal response of the polymer matrix around CNT under local pulse heating is obtained. The dynamics of the temperature distribution around CNT depends significantly on the CNT parameters and the thermal contact conductance of the polymer/CNT interface. The effect of dynamic heat capacity on the local overheating of the polymer matrix around CNT is considered. This local overheating can be enhanced by very fast (about 1 ns) components of the dynamic heat capacity of the polymer matrix. The results can be used to analyze the heat transfer process at the early stages of “shish-kebab” crystal structure formation in CNT/polymer composites.
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Affiliation(s)
- Alexander A Minakov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, GPI RAS, Vavilov str. 38, 119991 Moscow, Russia
| | - Christoph Schick
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia.
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46
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Abdelaziz A, Zaitsau DH, Kuratieva NV, Verevkin SP, Schick C. Melting of nucleobases. Getting the cutting edge of "Walden's Rule". Phys Chem Chem Phys 2019; 21:12787-12797. [PMID: 30888011 DOI: 10.1039/c9cp00716d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Walden's Rule is an empirical observation of an invariant fusion entropy during fusion of non-associated organic compounds. For the five nucleobases, adenine, thymine, cytosine, guanine, and uracil, surprisingly high fusion temperatures and enthalpies have been measured using a specially developed fast scanning calorimetry method that prevents decomposition. Even when nucleobases admittedly possess very high fusion temperatures, e.g. the value of 862 K measured for guanine really exceeds all expectations of the feasible dimension of the fusion temperature for such a relatively small and simple organic molecule. Hirshfeld surface analysis has been applied in order to find out an explanation for such extremely unusual thermal behavior of nucleobases. We rationalized the observed trends in terms of fusion entropy (Walden's constant = 56.5 J K-1 mol-1) as the entropic penalty of fusion not only for "non-associated", as proposed by Walden in 1908, but also for "ideal associated" systems like nucleobases.
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Affiliation(s)
- A Abdelaziz
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany. and University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany.
| | - D H Zaitsau
- University of Rostock, Institute of Chemistry, Dr-Lorenz-Weg 2, 18059 Rostock, Germany
| | - N V Kuratieva
- Nikolaev Institute of Inorganic Chemistry of Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - S P Verevkin
- University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany. and University of Rostock, Institute of Chemistry, Dr-Lorenz-Weg 2, 18059 Rostock, Germany and Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - C Schick
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany. and University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany. and Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
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Zhang R, Zhuravlev E, Androsch R, Schick C. Visualization of Polymer Crystallization by In Situ Combination of Atomic Force Microscopy and Fast Scanning Calorimetry. Polymers (Basel) 2019; 11:E890. [PMID: 31096647 PMCID: PMC6572680 DOI: 10.3390/polym11050890] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 11/16/2022] Open
Abstract
A chip-based fast scanning calorimeter (FSC) is used as a fast hot-stage in an atomic force microscope (AFM). This way, the morphology of materials with a resolution from micrometers to nanometers after fast thermal treatments becomes accessible. An FSC can treat the sample isothermally or at heating and cooling rates up to 1 MK/s. The short response time of the FSC in the order of milliseconds enables rapid changes from scanning to isothermal modes and vice versa. Additionally, FSC provides crystallization/melting curves of the sample just imaged by AFM. We describe a combined AFM-FSC device, where the AFM sample holder is replaced by the FSC chip-sensor. The sample can be repeatedly annealed at pre-defined temperatures and times and the AFM images can be taken from exactly the same spot of the sample. The AFM-FSC combination is used for the investigation of crystallization of polyamide 66 (PA 66), poly(ether ether ketone) (PEEK), poly(butylene terephthalate) (PBT) and poly(ε-caprolactone) (PCL).
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Affiliation(s)
- Rui Zhang
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
| | - Evgeny Zhuravlev
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of Ministry of Education, and The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China.
- Shenyang Research Institute, Nanjing University, Shenyang 224300, China.
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany.
| | - Christoph Schick
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia.
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Yagofarov MI, Lapuk SE, Mukhametzyanov TA, Ziganshin MA, Schick C, Solomonov BN. Thermochemical properties of 1,2,3,4-tetraphenylnaphthalene and 1,3,5-triphenylbenzene in crystalline and liquid states studied by solution and fast scanning calorimetry. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gataullina KV, Buzyurov AV, Ziganshin MA, Padnya PL, Stoikov II, Schick C, Gorbatchuk VV. Using fast scanning calorimetry to detect guest-induced polymorphism by irreversible phase transitions in the nanogram scale. CrystEngComm 2019. [DOI: 10.1039/c8ce01865k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Fast scanning calorimetry with a heating rate of 1000 K s−1 enables successful screening of polymorphs for separate microcrystalline aggregates in thiacalixarene powder.
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Affiliation(s)
- Karina V. Gataullina
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Aleksey V. Buzyurov
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Marat A. Ziganshin
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Pavel L. Padnya
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Ivan I. Stoikov
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
| | - Christoph Schick
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
- Institute of Physics
| | - Valery V. Gorbatchuk
- A.M. Butlerov Institute of Chemistry
- Kazan Federal University
- 420008 Kazan
- Russian Federation
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