Nmr Of Liquid Crystal Dendrimers by Carlos Rodrigues Da CruzNmr Of Liquid Crystal Dendrimers by Carlos Rodrigues Da Cruz

Nmr Of Liquid Crystal Dendrimers

byCarlos Rodrigues Da Cruz, Jo-o L. Figueirinhas, Pedro J. Sebasti-o

Hardcover | May 12, 2016

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Dendrimers are hyperbranched molecules with well-defined nanometer-scale dimensions. Important technological applications of these systems, both in biomedicine and materials science, have been recently proposed. Liquid crystal dendrimers are fascinating materials that combine the characteristics of dendrimers with the anisotropic physical behaviour and molecular self-organization typical of liquid crystals. This unique association of physical and chemical properties, together with the possibility of multi-selective functionalization put forward by dendrimers, opens new perspectives for applications. Nuclear magnetic resonance (NMR) is a powerful experimental technique applied in materials science and an important tool to the study of molecular organization and dynamics. This book presents an introduction to dendrimers properties with special insight into liquid crystal dendrimers and a detailed description of the NMR theory and experimental techniques used in the investigation of these materials. It also discusses recent NMR research results on liquid crystal dendrimers, with emphasis on molecular order and dynamics studies.

This book introduces the properties of dendrimers, with special insight into liquid crystal dendrimers, and a detailed description of NMR theory and experimental techniques used in the investigation of these materials. It also discusses results of recent NMR research on liquid crystal dendrimers, with an emphasis on molecular order and dynamics studies. Advanced undergraduate and graduate students of physics, chemistry, and materials science and researchers in the fields of dendrimers, liquid crystals, and NMR will find the book extremely useful.

Carlos R. Cruzreceived his PhD in physics from the Technical University of Lisbon, Portugal, in 1994. He is a senior lecturer at Instituto Superior T'ico ( IST) and coordinator of the Complex Fluids NMR and Surfaces Group of CeFEMA (Center of Physics and Engineering of Advanced Materials), Technical University of Lisbon. His research w...
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Title:Nmr Of Liquid Crystal DendrimersFormat:HardcoverDimensions:248 pages, 9.41 × 7.24 × 0.98 inPublished:May 12, 2016Publisher:Taylor and FrancisLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9814745723

ISBN - 13:9789814745727

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Table of Contents

Introduction

Dendrimers

NMR of Liquid Crystals and Liquid Crystal Dendrimers

Liquid Crystals

Liquid Crystals

Mesophases of Thermotropic Liquid Crystals

Molecular Structures of Liquid Crystalline Dendrimers

Side-Chain Liquid Crystal Dendrimers

Main-Chain Liquid Crystalline Dendrimers

Shape Persistent Liquid Crystalline Dendrimers

Supramolecular dendromesogens

Other Liquid Crystalline Dendrimer Structures

Overview

Fundamentals of Nuclear Magnetic Resonance

Introduction

Nuclear Paramagnetism

Dynamics of Non-interacting Spins, Bloch Equations

The Nuclear Spin Hamiltonian

Dynamics of Interacting Spins

Pulsed Nuclear Magnetic Resonance

NMR spectroscopy of anisotropic fluid systems. Theory and Experimental

Introduction

Nuclear Spin Hamiltonian for NMR of Anisotropic Fluid Systems

Averaged Second Rank Tensorial Quantities and Order Parameters

Determination of High Field NMR Absorption Spectra for Selected Spin Systems

Quantum mechanical analysis of selected NMR pulse sequences

Experimental details

NMR relaxation and molecular dynamics. Theory

General concepts

Relaxation rates

Relaxation Mechanisms

NMR relaxometry and molecular dynamics. Experimental techniques

Inversion-recovery

Fast Field-Cycling

Experimental Setups

NMR spectroscopy of liquid crystal dendrimers. Experimental results

NMR of LC dendrimers and the investigation of the biaxial nematic phase

Comparison with tetrapode's monomers and other side-chain LC dendrimers

NMR relaxometry of liquid crystal dendrimers. Experimental results

Liquid crystal dendrimers investigated by NMR relaxometry

The influence of dendrimers structure on the molecular dynamics