Optically active polymers (16 Ergebnisse)

Zustand: New. In English.

Paperback. Zustand: Brand New. 68 pages. 9.00x6.00x0.25 inches. In Stock.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book presents a systematic study of the synthesis of optically active polymers, discussing in detail the syntheses of three different types of optically active polymers from helical polymers, dendronized polymers and other types of polymeric compounds. It also explains the syntheses of optically active azoaromatic and carbazole-containing azoaromatic polymers and copolymers; optically active benzodithiophene; and optically active porphyrin derivatives. The final chapter discusses different properties of optically active polymers such as nonlinear optical properties, chiroptical properties, vapochromic behaviour, absorption and emission properties, fabrication and photochromic properties. The intrinsic details of various properties of optically active polymers will offer a valuable resource for researchers and industry personnel actively engaged in application-oriented investigations.…

Taschenbuch. Zustand: Neu. Optically Active Polymers | A Systematic Study on Syntheses and Properties | Pradip K Dutta (u. a.) | Taschenbuch | xix | Englisch | 2016 | Springer Nature Singapore | EAN 9789811026058 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.…

Zustand: New.

Zustand: New.

Taschenbuch. Zustand: Neu. Conjugated Polymers | The Novel Science and Technology of Highly Conducting and Nonlinear Optically Active Materials | R. Silbey (u. a.) | Taschenbuch | xviii | Englisch | 2012 | Springer | EAN 9789401055369 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. …

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The first four volumes of the series on 'Charged and Reactive Polymers' have been devoted to polymers in solution (Voh. I and II) or in gel and membrane forms (Vols. III and IV). In correlation with charges, other physical or chemical properties of macro molecules have been considered. Understanding of charge and hydrophobic effects is equally important for synthetic and biopolymers or their systems. Optically Active Polymers are related to problems of the same class, since optical activity is an inherent property of both natural macromolecules as well as a great variety of polymers synthesized in the Jast twenty years. Optical activity is a physical spectral property of chiral matter caused by asymmetrical configurations, conformations and structures which have no plane and no center of symmetry and consequently have two mirror image enantiomeric forms of inverse optical rotation. The racemic mixture of chiral enantiomers is optically inactive. The most common form of optical activity was first measured at a constant wavelength by the angle of rotation of linearly polarized light. More recently the measurements have been extended to the entire range of visible and attainable ultraviolet regions where electronic transitions are observed, giving rise to the ORD technique (Optical Rotatory Dispersion). The Cotton effects appear in the region of optically active absorption bands; outside of these bands the plain curve spectrum is also dependent on all the electronic transitions of the chromophores.…

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - CONJUGATED POLYMERS: THE IMTERPLAY BETWEEN SYNTHESIS, 1 STRUCTURE, AND PROPERTIES C. B. GORMAN and R. H. GRUBBS 1. Introduction 2 2. Structural Features of Conjuqated. Polyaers 3 3. Polymer Synthesis: Basic Methods 4 3. 1 Step-Growth Polymerization 5 3. 2 Chain-Growth Polymerization 6 3. 3 Rinq-Openinq Polymerization 8 4. Direct Synthetic Methods 8 4. 1 Electrochemical Synthesis 9 4. 2 Synthesis by Step-Growth Polymerization 11 4. 2. 1 Polyaniline (PAN) 11 4. 2. 2 Poly(Phenylene Sulfide) 12 4. 2. 3 Poly thiophene and its Derivatives 13 4. 2. 4 Other 5-membered Heterocyclic 16 Derivatives 4. 2. 5 Polyparaphenylene (PPP) 17 4. 2. 6 Polysilanes 18 4. 2. 7 Polymers of Phthalocyanines 19 4. 2. 8 Other Conjugated Metal Coordination 20 Polymers 4. 2. 9 Ladder Polymers 21 4. 3 The Unusual Topochemical Polymerization to 23 form Polydiacetylenes 4. 4 Chain-Growth Polymerizations 24 4. 4. 1 Polyacetylene via Ziegler-Natta 24 Polymerization 4. 4. 2 Ring-Opening Metathesis Polymerization 26 Routes to Polyacetylenes 5. Polymers fro. precursors 27 5. 1 Polyparaphenylene (PPP) 27 5. 2 Poly(Phenylene Vinylene) (PPV) and Other 28 Vinylene Polymers 5. 3 Precursors to Polyacetylene 29 6. Extentions of these Methods in the Synthesis of 31 saall-Bandqap Pplymers 7. Conjuqated. Polymer Matrices 33 8. Conclusions and Caveats 35 Acknowled. qements 36 References 36 vi TABLE OF CONTENTS PROPERTIES OF HIGHLY CONDUCTIHG POLYACETYLEHE 49 Th. SCHIMMEL, D. GLASER, M. SCHWOERER AND H. NAARMANN 1. Introduction 50 2. SBIlpie Synthesis, lIorphology and Properties 52 2. …

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - CONJUGATED POLYMERS: THE IMTERPLAY BETWEEN SYNTHESIS, 1 STRUCTURE, AND PROPERTIES C. B. GORMAN and R. H. GRUBBS 1. Introduction 2 2. Structural Features of Conjuqated. Polyaers 3 3. Polymer Synthesis: Basic Methods 4 3. 1 Step-Growth Polymerization 5 3. 2 Chain-Growth Polymerization 6 3. 3 Rinq-Openinq Polymerization 8 4. Direct Synthetic Methods 8 4. 1 Electrochemical Synthesis 9 4. 2 Synthesis by Step-Growth Polymerization 11 4. 2. 1 Polyaniline (PAN) 11 4. 2. 2 Poly(Phenylene Sulfide) 12 4. 2. 3 Poly thiophene and its Derivatives 13 4. 2. 4 Other 5-membered Heterocyclic 16 Derivatives 4. 2. 5 Polyparaphenylene (PPP) 17 4. 2. 6 Polysilanes 18 4. 2. 7 Polymers of Phthalocyanines 19 4. 2. 8 Other Conjugated Metal Coordination 20 Polymers 4. 2. 9 Ladder Polymers 21 4. 3 The Unusual Topochemical Polymerization to 23 form Polydiacetylenes 4. 4 Chain-Growth Polymerizations 24 4. 4. 1 Polyacetylene via Ziegler-Natta 24 Polymerization 4. 4. 2 Ring-Opening Metathesis Polymerization 26 Routes to Polyacetylenes 5. Polymers fro. precursors 27 5. 1 Polyparaphenylene (PPP) 27 5. 2 Poly(Phenylene Vinylene) (PPV) and Other 28 Vinylene Polymers 5. 3 Precursors to Polyacetylene 29 6. Extentions of these Methods in the Synthesis of 31 saall-Bandqap Pplymers 7. Conjuqated. Polymer Matrices 33 8. Conclusions and Caveats 35 Acknowled. qements 36 References 36 vi TABLE OF CONTENTS PROPERTIES OF HIGHLY CONDUCTIHG POLYACETYLEHE 49 Th. SCHIMMEL, D. GLASER, M. SCHWOERER AND H. NAARMANN 1. Introduction 50 2. SBIlpie Synthesis, lIorphology and Properties 52 2.…

Paperback. Zustand: Brand New. 432 pages. 9.25x6.10x0.98 inches. In Stock.

Paperback. Zustand: Brand New. 624 pages. 9.45x6.30x1.46 inches. In Stock.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The first four volumes of the series on 'Charged and Reactive Polymers' have been devoted to polymers in solution (Voh. I and II) or in gel and membrane forms (Vols. III and IV). In correlation with charges, other physical or chemical properties of macro molecules have been considered. Understanding of charge and hydrophobic effects is equally important for synthetic and biopolymers or their systems. Optically Active Polymers are related to problems of the same class, since optical activity is an inherent property of both natural macromolecules as well as a great variety of polymers synthesized in the Jast twenty years. Optical activity is a physical spectral property of chiral matter caused by asymmetrical configurations, conformations and structures which have no plane and no center of symmetry and consequently have two mirror image enantiomeric forms of inverse optical rotation. The racemic mixture of chiral enantiomers is optically inactive. The most common form of optical activity was first measured at a constant wavelength by the angle of rotation of linearly polarized light. More recently the measurements have been extended to the entire range of visible and attainable ultraviolet regions where electronic transitions are observed, giving rise to the ORD technique (Optical Rotatory Dispersion). The Cotton effects appear in the region of optically active absorption bands; outside of these bands the plain curve spectrum is also dependent on all the electronic transitions of the chromophores.…