1992 Fiscal Year Annual Research Report

高分子固体の高次組織と力学的および電気的物性・機能との相関

Research Project

Project/Area Number	04205098
Research Institution	Osaka University
Principal Investigator	小林雅通大阪大学, 理学部, 教授 (40028147)
Co-Investigator(Kenkyū-buntansha)	金子文俊大阪大学, 理学部, 助手 (70214468) 田代孝二大阪大学, 理学部, 講師 (60171691)
Keywords	高分子繊維の力学物性 / 高分子結晶モルフオロジー / 赤外・ラマンバンドプロフィル / 遷移双極子相互作用 / ポリオキシメチレン / ポリチフッ化エチレン / 強誘電性液晶高分子 / 層状多形
Research Abstract	高分子固体の極限物性評価には分子,結晶構造と共に高次組織の効果を定量的に見積ることが重要となる。これに関連して、高分子結晶のモルフォロジーに大きく依存する赤外バンドプロフィル解析により,モルフォロジーの分布を定量的に評価する新しい分光学手法を確立して,種々の例に適用した。すなわち,線状および大還状オリゴマーを含む種々のポリオキシメチレンについて,結晶化条件,熱的および機械的処理によって結晶モルフォロジーが変化する様子を定量的に考察することができた。また,ポリチフッ化エチレンとその線状オリゴマー単結晶の高次組織と相転移挙動の関係を詳細に検討した。この手法はまた,水素化一重水素化試料混合系および鎖長の異なるオリゴマー混合系の結晶化過程における共晶化あるいは相分離の研究にも広く利用できることを示した。ポリオキシメチレンおよびポリチフッ化エチレン結晶における分子運動と構造不整の性質を赤外・ラマンバンドプロフィルの温度変化に基いて解明し、相転移および力学物性に及ぼす効果を定量的に検討した。電気物性に関しては,側鎖型強誘電性液晶高分子の相転移において極めて復雑な層状構造の変化が起ることを明らかにした。すなわち,偉がな温度変化によりメソゲン層の繰り返し構造が極めて敏感に変化して多彩な層状多形(ポリタイプ)が出現する。このように特徴的な層状構造は強誘電性,反強誘電性,フエリ誘電性などの電気的性質と密接に関係するものと考えられる。

Research Products

(29 results)

All Other

All Publications (29 results)

[Publications] M.Kobayashi: "Morphology Dependent Anomalous Frequency Shifts if Infrared Absorption Bands of Polymer Crystals:Interpretation in Terms of Transition Dipole-Dipole Coupling Theory." J.Chem.Phys.96. 748-760 (1992)
[Publications] J.Hou: "X-ray Structural Analyses and Vibrational Spectral Measurements of Model Compounds of Liquid-Crystalline Arylate Polymers 3.Structural Phase Transition in a Serles of Model Compounds." J.Phys.Chem.96. 481-491 (1992)
[Publications] J.Hou: "Effect of Chiral Alkyl Group on the Structural Phase Transition of Ferroelectric Liquid Crystals Investigated vy Diffractional Scanning Calorimetry,X-ray Diffraction,and Infrared/Raman Spectroscopic Methods." J.Phys.Chem.96. 2729-2735 (1992)
[Publications] K.Tashiro: "Structural Changes in Ferroelectric Phase Transitions of Vinylidene Flouride-Tetrafluoroetyhlene Copolymers l.Vinylidene Fluoride Content Dependence of the Transition." Polymer. 33. 2915-2928 (1992)
[Publications] K.Tashiro: "Structral Changes in Ferroelectric Phase Transitions of Vinylidene Flouride-Tetrafluoroethylene Copolymers l.Normal modes Analysis of the Infrared and Raman Spectra at Room Temperature." Polymer. 33. 2929-2933 (1992)
[Publications] K.Tashiro: "Qussiharmonic Treatment of Infrared and Raman Vibrational Frequency Shifts Induced by Tensile Deformation of Polymer Chains.II.Application to Polyoxymethylene and Isotactic Polypropylene 3ingle Chains and the Three-Dimensional Orthorhombic Polyethylene." J.Polym.Sci.,Part B.Polym.Phys.30. 1143-1155 (1992)
[Publications] K.Tashiro: "Isomrphism in the Model Compounds of Liquid Crystalline Arylate Polymers as Confirmed by Electron Diffraction Measurement" 繊維学会誌. 48. 410-414 (1992)
[Publications] K.Tashiro: "Vibrational Spectra and Theoretical Three-Dimensional Elastic Constants of Isotactic Polypropylene Crystal:An Important Role Of Anharmonic Vibrations." Polymer J.24. 899-916 (1992)
[Publications] F.Kaneko: "Collective Displacement of Acyl Chains on E→C Phase Transition of Stearic Acid." J.Phys.Chem.96. 7104-7107 (1992)
[Publications] F.Kaneko: "ViBrational Spectroscopic Study on Occurrence of Steric Acid Band E Forms:Heterogeneous Nucleation of B Form on Surface of E Crystals and Topotactic Phase Transition from E to B." J.Phys.Chem.96. 10554-10559 (1992)
[Publications] F.Kaneko: "Structure of the High-Melting Phase of Petroslinic Acid" Acta Crystallogr.C. 48. 1057-1060 (1992)
[Publications] F.Kaneko: "Structure of the Low-Melting Phase of Petroselinic Acid" Acta Crystallogr.C. 48. 1054-1057 (1992)
[Publications] K.Tashiro: "Cocrystallization and Phase segregation of Polytyhlene Blends.l. Thermal and Bibends 1.Thermal and Vibrational Spectroscopic Study by Utiliaing the Deuteration Technique." Macromolecules. 25. 1801-1808 (1992)
[Publications] K.Tashiro: "Cocrystallization and Phase Segregation of Polysthylene Blends.2.Synchrotron-Souurced X-ray Scattering and Small Angls Light Scattering Sturdy of the Blends between the D and H Species." Macromolecules. 25. 1809-1815 (1992)
[Publications] F.Kaneko: "Structure of the 1 Phase of Erucic Acid." Acta Crystallogr.C. 48. 1060-1063 (1992)
[Publications] T.Nakaoki: "Concentration Dependence of Structure Formed in Isotactic and Syndiotactic Polystrene Gels." Rep.Progr.Polym.Phys.Jpn.35. 129-132 (1992)
[Publications] M.Kobayashi: "Small-Angle Neutron Scattering(SANS)of Gels Formed in Syndiotactic Polystyrene/o-Dichlorobenzene Systems." Rep.Progr.Polym.Phys Jpn.35. 133-136 (1992)
[Publications] F.Kaneko: "Congition for Occurence of Stearic Acid B-Form:Role of Dislocations in Single Crystals." Rep.Progr.Poly.Phys.Jpn.35. 221-224 (1992)
[Publications] F.kaneko: "Mechanisible Solid State Phase Transitions of Cis Unsaturated Fatty Acids:Influence of Lamellar Inter-Face Structure." Rep.Progr.Poly.Phys.Jpn.35. 225-228 (1992)
[Publications] F.Kaneko: "Molecular Vibrations of Polytetrafluofluroethylene Oligomers In Three Crystal Modifications" ReP.Progr.Polym.Phys.Jpn.35. 449-452 (1992)
[Publications] M.Kobayaschi: "Phase Transition and Molecular Motion of Oerfluoroeicosane(C20F42) and Perfluorotetracosane(C24F50)" Rep.Progr.Polym.Phys.Jpn.35. 453-456 (1992)
[Publications] M.Kobayaschi: "Morphology-Dependent Infrared Bandshifts and Band Profiles of Polytetrafluoroethylene" Rep.Progr.Polym.Phys.Jpn.35. 457-460 (1992)
[Publications] K.Tashiro: "Thermochromism and Dtructural Phase Transition of Poly(3-Alkylthiophene)S:A Role of Alkyl Side Chains on the Structural Changes." Rep.Progr.Polym.Phys.Jpn.35. 461-464 (1992)
[Publications] K.Tashiro: "Thermochromism and Structural Phase Transition of Poly(3-Alkylthiophene)s:Structral Change in Poly(3-Docosylthio-phene)" Rep.Progr.Polym.Phys.Jpn.35. 465-468 (1992)
[Publications] 田代孝二: "高電子結晶の構造と力学的性質の関わり:分子理論に基く考察" 高分子論子集. 49. 711-733 (1992)
[Publications] 小林雅通: "高分子固体極限物性の理論評価" 高分子. 41. 44-45 (1992)
[Publications] 田代孝二: "ミクロな視点から眺めた高分子固体の相転移と物性変化の関わり" 海外高分子研究. 38. 79-83 (1992)
[Publications] 田代孝二: "高分子の秩序状態形成過程における構造化" 高分子加工. 41. 113-118 (1992)
[Publications] 佐藤清隆,小林雅通: "脂質の構造とダイナミックス" 共立出版,東京, 179 (1992)

1992 Fiscal Year Annual Research Report

高分子固体の高次組織と力学的および電気的物性・機能との相関

Principal Investigator

小林 雅通 大阪大学, 理学部, 教授 (40028147)

Research Products

[Publications] M.Kobayashi: "Morphology Dependent Anomalous Frequency Shifts if Infrared Absorption Bands of Polymer Crystals:Interpretation in Terms of Transition Dipole-Dipole Coupling Theory." J.Chem.Phys.96. 748-760 (1992)

[Publications] J.Hou: "X-ray Structural Analyses and Vibrational Spectral Measurements of Model Compounds of Liquid-Crystalline Arylate Polymers 3.Structural Phase Transition in a Serles of Model Compounds." J.Phys.Chem.96. 481-491 (1992)

[Publications] J.Hou: "Effect of Chiral Alkyl Group on the Structural Phase Transition of Ferroelectric Liquid Crystals Investigated vy Diffractional Scanning Calorimetry,X-ray Diffraction,and Infrared/Raman Spectroscopic Methods." J.Phys.Chem.96. 2729-2735 (1992)

[Publications] K.Tashiro: "Structural Changes in Ferroelectric Phase Transitions of Vinylidene Flouride-Tetrafluoroetyhlene Copolymers l.Vinylidene Fluoride Content Dependence of the Transition." Polymer. 33. 2915-2928 (1992)

[Publications] K.Tashiro: "Structral Changes in Ferroelectric Phase Transitions of Vinylidene Flouride-Tetrafluoroethylene Copolymers l.Normal modes Analysis of the Infrared and Raman Spectra at Room Temperature." Polymer. 33. 2929-2933 (1992)

[Publications] K.Tashiro: "Isomrphism in the Model Compounds of Liquid Crystalline Arylate Polymers as Confirmed by Electron Diffraction Measurement" 繊維学会誌. 48. 410-414 (1992)

[Publications] K.Tashiro: "Vibrational Spectra and Theoretical Three-Dimensional Elastic Constants of Isotactic Polypropylene Crystal:An Important Role Of Anharmonic Vibrations." Polymer J.24. 899-916 (1992)

[Publications] F.Kaneko: "Collective Displacement of Acyl Chains on E→C Phase Transition of Stearic Acid." J.Phys.Chem.96. 7104-7107 (1992)

[Publications] F.Kaneko: "ViBrational Spectroscopic Study on Occurrence of Steric Acid Band E Forms:Heterogeneous Nucleation of B Form on Surface of E Crystals and Topotactic Phase Transition from E to B." J.Phys.Chem.96. 10554-10559 (1992)

[Publications] F.Kaneko: "Structure of the High-Melting Phase of Petroslinic Acid" Acta Crystallogr.C. 48. 1057-1060 (1992)

[Publications] F.Kaneko: "Structure of the Low-Melting Phase of Petroselinic Acid" Acta Crystallogr.C. 48. 1054-1057 (1992)

[Publications] K.Tashiro: "Cocrystallization and Phase segregation of Polytyhlene Blends.l. Thermal and Bibends 1.Thermal and Vibrational Spectroscopic Study by Utiliaing the Deuteration Technique." Macromolecules. 25. 1801-1808 (1992)

[Publications] K.Tashiro: "Cocrystallization and Phase Segregation of Polysthylene Blends.2.Synchrotron-Souurced X-ray Scattering and Small Angls Light Scattering Sturdy of the Blends between the D and H Species." Macromolecules. 25. 1809-1815 (1992)

[Publications] F.Kaneko: "Structure of the 1 Phase of Erucic Acid." Acta Crystallogr.C. 48. 1060-1063 (1992)

[Publications] T.Nakaoki: "Concentration Dependence of Structure Formed in Isotactic and Syndiotactic Polystrene Gels." Rep.Progr.Polym.Phys.Jpn.35. 129-132 (1992)

[Publications] M.Kobayashi: "Small-Angle Neutron Scattering(SANS)of Gels Formed in Syndiotactic Polystyrene/o-Dichlorobenzene Systems." Rep.Progr.Polym.Phys Jpn.35. 133-136 (1992)

[Publications] F.Kaneko: "Congition for Occurence of Stearic Acid B-Form:Role of Dislocations in Single Crystals." Rep.Progr.Poly.Phys.Jpn.35. 221-224 (1992)

[Publications] F.kaneko: "Mechanisible Solid State Phase Transitions of Cis Unsaturated Fatty Acids:Influence of Lamellar Inter-Face Structure." Rep.Progr.Poly.Phys.Jpn.35. 225-228 (1992)

[Publications] F.Kaneko: "Molecular Vibrations of Polytetrafluofluroethylene Oligomers In Three Crystal Modifications" ReP.Progr.Polym.Phys.Jpn.35. 449-452 (1992)

[Publications] M.Kobayaschi: "Phase Transition and Molecular Motion of Oerfluoroeicosane(C20F42) and Perfluorotetracosane(C24F50)" Rep.Progr.Polym.Phys.Jpn.35. 453-456 (1992)

[Publications] M.Kobayaschi: "Morphology-Dependent Infrared Bandshifts and Band Profiles of Polytetrafluoroethylene" Rep.Progr.Polym.Phys.Jpn.35. 457-460 (1992)

[Publications] K.Tashiro: "Thermochromism and Dtructural Phase Transition of Poly(3-Alkylthiophene)S:A Role of Alkyl Side Chains on the Structural Changes." Rep.Progr.Polym.Phys.Jpn.35. 461-464 (1992)

[Publications] K.Tashiro: "Thermochromism and Structural Phase Transition of Poly(3-Alkylthiophene)s:Structral Change in Poly(3-Docosylthio-phene)" Rep.Progr.Polym.Phys.Jpn.35. 465-468 (1992)

[Publications] 田代 孝二: "高電子結晶の構造と力学的性質の関わり:分子理論に基く考察" 高分子論子集. 49. 711-733 (1992)

[Publications] 小林 雅通: "高分子固体極限物性の理論評価" 高分子. 41. 44-45 (1992)

[Publications] 田代 孝二: "ミクロな視点から眺めた高分子固体の相転移と物性変化の関わり" 海外高分子研究. 38. 79-83 (1992)

[Publications] 田代 孝二: "高分子の秩序状態形成過程における構造化" 高分子加工. 41. 113-118 (1992)

[Publications] 佐藤 清隆,小林雅通: "脂質の構造とダイナミックス" 共立出版,東京, 179 (1992)

小林雅通大阪大学, 理学部, 教授 (40028147)

[Publications] 田代孝二: "高電子結晶の構造と力学的性質の関わり:分子理論に基く考察" 高分子論子集. 49. 711-733 (1992)

[Publications] 小林雅通: "高分子固体極限物性の理論評価" 高分子. 41. 44-45 (1992)

[Publications] 田代孝二: "ミクロな視点から眺めた高分子固体の相転移と物性変化の関わり" 海外高分子研究. 38. 79-83 (1992)

[Publications] 田代孝二: "高分子の秩序状態形成過程における構造化" 高分子加工. 41. 113-118 (1992)

[Publications] 佐藤清隆,小林雅通: "脂質の構造とダイナミックス" 共立出版,東京, 179 (1992)