FT-IR Study on the Effect of Solvents on Polymorphic Crystallization of Organic Compounds
スポンサーリンク
概要
- 論文の詳細を見る
FT-IR measurements of solutions of organic compounds, which have several polymorphs, were carried out to discuss the effects of solvents on polymorphic crystallization. DL-Methionine (DL-Met) and bisphenol A (BPA) were used as model compounds. For DL-Met, characteristic peaks of IR spectra of solutions after reaction crystallization with various acids agreed with those of obtained crystals. The difference of IR spectra between solutions indicates that molecular conformations of DL-Met have already changed in the solutions before crystallization and were affected by the acids used for the reaction crystallizations. In the case of BPA, IR spectra of solutions with various solvents were measured to examine the effects of solvents on polymorphic crystallization. Solutions with benzene and ethylbenzene showed similar characteristic peaks each other and form II crystals precipitated from benzene solutions while amorphous solid was obtained from ethylbenzene solutions. Form I crystallized from other solutions without characteristic peaks.From these results, FT-IR measurement of solutions was concluded to be a useful analytical method to examine the effect of solvents on selective crystallization of polymorphs.
- 社団法人 化学工学会の論文
- 2002-06-01
著者
-
Takayama Hiroshi
Department Of Hematology And Oncology
-
TAKIYAMA HIROSHI
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
-
Matsuoka Masakuni
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
-
Takiyama H
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology (tuat)
-
YAMANOBE Maiko
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
-
Yamanobe Maiko
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
-
Takiyama Hiroshi
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
-
MATSUOKA Masakuni
Department of Chemical Engineering , Tokyo University of Agriculture and Technology
関連論文
- Solid-State Crystallization Behavior of Tetrabenzoporphyrin Organic Semiconductors
- Simplified heating time calculation using the Schmidt graphical method for PCB-contaminated capacitors undergoing the vacuum thermal recycling process
- A-6. An Experimental Study on the external Decompression : Part I;Changes of Intracranial Pressure,Angiofraphic Intracranial Blood Flow and Jugular Vein Pressure
- A-51. The study of intra-and Paratumoral Hemorrhage
- Successful management of a pregnant woman with heterozygous protein C deficiency using activated protein C concentrate
- Age-related changes of platelet arachidonic acid metabolism in normal subjects
- E148Q/M694I Mutation in 3 Japanese Patients with Familial Mediterranean Fever
- Hepatocellular Carcinoma in a Patient with Primary Biliary Cirrhosis and Seronegativity for Markers of Hepatitis B Virus and Hepatitis C Virus : Report of a Case
- S-I-4. On The Effect of External Decompression for Acute Traumatic Cerebral Edema and New Method of External Decompression
- Treatment of Multiple Intracranial Aneurysms in the Anterior Circulation : Case Report
- Solid-State Crystallization of CuTBP (Copper Tetrabenzoporphyrin) Organic Semiconductor
- Analysis and Simulation of Phase Transformation Kinetics of Zeolite A from Amorphous Phases
- Nucleation Rates of Zeolite A Crystals from Clear Aluminosilicate Solutions
- BEHAVIOR OF PHASE TRANSITION AND HEAT TRANSFER CHARACTERISTICS IN A LATENT HEAT STORAGE UNIT WITH COMPOSITE MATERIAL
- Effect of Additives on Polymorphic Transition of Theophylline in Mechano-Chemical Processing
- Effects of Suspension Density on Crystal Growth Rate in Multiparticle Agitated Crystallizers
- CVD Synthesis of Alumina-supported Molybdenum Carbide Catalyst
- Evaluation of the Relative Stability of Toropane Derivative Nitrate Polymorphs
- Effect of Initial Supersaturation on Mechanism of Purity Drop during Preferential Crystallization
- PURIFICATION BY SWEATING OF ORGANIC SOLID SOLUTIONS BY LAYER AND SUSPENSION TYPE MELT CRYSTALLIZATION OPERATIONS
- Influence of Admixture Impurities on the Crystal Quality of Inorganic Phosphorus Compound
- FT-IR Study on the Effect of Solvents on Polymorphic Crystallization of Organic Compounds
- Kinetic Study on Polymorphic Solid-State Transformation of Organic Compounds : Bisphenol A and DL-Methionine
- Agglomeration Kinetics and Product Purity of Sodium Choloride Crystals in Batch Crystallization
- Purity of m-Chloronitrobenzene Agglomerates from Batch Seeded Suspension Crystallization
- Effect of Face Crystallographic Orientation of Seed Crystal on Purity Drop during Preferential Crystallization
- Etch Rate Distribution over Silicon Wafers in EPW Solutions : Semiconductors and Semiconductor Devices
- Secondary Growth Phenomena in Industrial Crystallization and Their Effects on Crystal Quality
- PREPARATION OF SILICON THIN DIAPHARAGMS FREE FROM MICROPYRAMIDS USING ANISOTROPIC ETCHING IN KOH SOLUTIONS
- Kinetics of Solid State Polymorphic Transition of Caffeine
- Solid-State Recrystallization Behavior of Binary Inorganic Salt Systems by Mechanochemical Processing
- Surface Phenomena and Mechanism of Polymorphic Transition in Theophylline
- Surface modification of silica particles with polyimide by ultrasonic wave irradiation
- Surface modification of silica particles using polyimide
- Study of polyimide particle surface modification by the high-speed impact method
- A Continuous Production Method of Nano-Particles of Leucine by Controlled Nucleation and Growth in Ternary Systems
- Effect of Washing L-Threonine Seed Crystals on Surface Nucleation of D-Threonine
- Solid-State Crystallization Behavior of Tetrabenzoporphyrin Organic Semiconductors
- Kinetics of Humidity Driven Solid-State Polymorphic Transition of Theophylline Anhydrates
- Controlled Production of Polymorphic Mixtures of MPPO in Batch Cooling and Drowning-Out Crystallization
- NaCl Crystal Growth Rate under Conditions of Continuous Slurry Feeding
- Solid State Characterization of E3210 Polymorphs
- On the Size of Critical Nuclei and Growth Units of Zeolite A during Phase Transformation from Aluminosilicate Solutions
- Effects of Undersaturation on Crystal Size Distribution in Cooling Type Batch Crystallization
- Solid-State Characterization of E3210 Polymorphs
- Crystal Growth Phenomena of Methacrylic Acid under the Presence of Maleic Acid in Melt Crystallization
- Production of Fine Organic Crystalline Particles by Using Milli Segmented Flow Crystallizer
- Scale Formation Dynamics on Cooling Surface during Start-Up Operation in Melt Crystallization
- Composition of solid condensate on a cold surface from a mixed organic vapor.
- A combined crystallization process to separate binary organic eutectic mixtures.
- PHENOMENA OF SOLIDIFICATION IN NORMAL FREEZING OF A SIMPLE EUTECTIC-FORMING ORGANIC MELT
- Rate of solid condensation from organic vapors on a cold surface.
- Purification of p-dichlorobenzene and m-chloronitrobenzene crystalline particles by sweating.
- The separation of eutectic forming organic mixtures by normal freezing.
- Rate of composition changes of organic solid solution crystals in sweating operations.
- The Purity of Methacrylic Acid Crystals under the Presence of Maleic Acid and Methanol in Melt Crystallization
- The Effect of Morphology of Crystals in Suspension on Scale Formation Dynamics in Cooling Crystallization for Organic Compound
- The Influence of Crystal Orientation on Crystal Size Measurement
- Supersaturation operation for quality control of crystalline particles in solution crystallization
- The Influence of Crystal Orientation on Crystal Size Measurement
- Nucleation and growth of nuclei from organic vapors on a cold surface.