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Article
Thermal induced phase separation of E7/PMMA PDLC system
The phase behaviour of thermoplastic polymer-dispersed liquid crystal system is studied with particular emphasis on the various transitions that occur within the system. The extent of plasticization of the pol...
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Chapter
Application of nitrogen-15 NMR to polymers
A large number of polymers for commercial use as well as biological macromolecules are based on nitrogen containing monomers. Thus, the understanding of their structure and molecular dynamics is of great impor...
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Chapter
A Solid-State 13C NMR Study of Polysiloxane Side-Chain Liquid Crystalline Polymers Containing 2-[4-(2S)-Methyl-Butoxy)-Phenyl]-5-(ω-Alkyl)-1,3,2-Dioxaborinane with Alkyl Being Undecanyl and Octyl
The polysiloxane side-chain liquid crystalline polymer containing 2-[4-(2S)-methyl-butoxy)-phenyl]-5-(ω-alkyl)-1,3,2-dioxaborinane with alkyl being undecanyl and octyl was studied using solid-state 13C NMR. The s...
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Chapter
NMR Imaging Investigations of Case II Diffusion in Polymers
Case II diffusion in glassy polymers is studied extensively using techniques that require destruction of the sample or interruption of the diffusion processes to make proper measurements. NMR imaging is a new ...
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Chapter
13C NMR Studies of Poly(Vinylidene Fluoride) Blends
C-13 NMR was used to investigate the compatibility and subsequent separation of solution casted blends of poly(vinylidene fluoride)/poly(methyl methacrylate) and poly(vinylidene fluoride)/poly(vinyl acetate) w...
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Chapter and Conference Paper
Influence of the Surface Treatment of Graphitized Carbon Fibers on the Curing of an Amine Catalyzed Epoxy-Anhydride System
The surface of graphitized carbon fibers is oxidatively treated by nitric acid. Fourier transform infrared attenuated total reflection spectroscopy has been utilized to monitor the influence of the surface spe...
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Chapter
Quantitative Analysis of Neat Polymeric Fibers by DRIFTS Using Optical Constant Data
Infrared reflectance spectra were obtained of drawn and undrawn poly(ethylene terephthalate) (PET) fibers using a diffuse reflectance attachment. different fiber alignments with respect to the incident beam pr...
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Chapter
Comparison of FT-IR Transmission, Specular Reflectance, and Attenuated Total Reflectance Spectra of Polymers
Thin films of poly(methyl methacrylate) were deposited on germanium substrates and analyzed by Fourier transform infrared spectroscopy. Three types of experiments were performed: transmission, specular reflect...
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Chapter
Introduction to Optics and Infrared Spectroscopic Techniques
Infrared spectroscopy is one of the oldest techniques for the molecular level characterization of materials, and it has of course been extensively used to study polymer systems. Excellent review articles exist...
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Chapter
Applications of Solid-State Magic Angle NMR Spectroscopy to Fiber Reinforced Composites
The solid-state NMR techniques of cross polarization (CP), high power proton decoupling and magic angle sample spinning allow one to study the binding of coupling agents to silica surfaces, γ-mercaptopropyltri...
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Chapter
Applications of Solid-State Magic Angle NMR Spectroscopy to Fiber Reinforced Composites
The solid-state NMR techniques of cross polarization (CP), high power proton decoupling and magic angle sample spinning allow one to study the binding of coupling agents to silica surfaces, γ-mercaptopropyltri...
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Chapter
Applications of Fourier Transform Infrared Spectroscopy to the Study of Fibre-Resin Composites
A major concern in the development of advanced composite materials technology is the problem of composite reliability. One of the sources of variations in composite performance is the differences in polymer co...
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Chapter
In Situ Analysis of the Interface
Interfacial phenomena are important in all phases of composite technology. The properties of all components are affected by the nature of their surfaces which in turn significantly affect composite properties....
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Article
IR-Untersuchungen der Einkristalle von Polycaprolactam
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Chapter
Infrared Studies of Chain Folding in Uniaxially Oriented Polyhexamethylene Adipamide
The fold content of uniaxially drawn polyhexamethylene adipamide (nylon 66) is measured as a function of annealing conditions by an infrared tilting method. Unoriented, rapidly quenched and isothermally crysta...
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Chapter
Mechanisms for Regularization of Chain Folds During Annealing of Polyhexamethylene Adipamide
The regular fold content of polyhexamethylene adipamide depends on the initial crystallization conditions, the degree of orientation, and the annealing time and temperature. At low an annealing temperatures, t...
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Chapter and Conference Paper
Raman Spectroscopy of Polymers
Recent introduction of laser sources has brought about renewed interest in Raman spectroscopy to study molecular vibrations. New sampling techniques have been developed, and existing methods of dispersing and ...
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Article
Raman spectroscopy of calcified tissue
Laser Raman spectra of ox tibia and of reconstituted rat tail tendon have been obtained and have been compared with the infrared spectra of calcified tissue and collagen. The most intense Raman bands in the ca...
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Chapter and Conference Paper
Calorimetric Studies of Drawn Polyethylene Terephthalate
Dynamic differential calorimetry and density measurements have been made on drawn polyethylene terephthalate. The crystallinity and heats of fusion depend on the type of molecular rearrangements produced by th...
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Article
Differential thermal analysis of pressure crystallized polyethylene
The results presented here demonstrate that although medium-density polyethylene in addition to linear polyethylene can crystallize in extended-chain as well as folded-chain crystals, the branches have a signi...
