Structural morphology

As regards the general behaviour of polymers, it is widely recognised that crystalline plastics offer better environmental resistance than amorphous plastics. This is as a direct result of the different structural morphology of these two classes of material (see Appendix A). Therefore engineering plastics which are also crystalline e.g. Nylon 66 are at an immediate advantage because they can offer an attractive combination of load-bearing capability and an inherent chemical resistance. In this respect the arrival of crystalline plastics such as PEEK and polyphenylene sulfide (PPS) has set new standards in environmental resistance, albeit at a price. At room temperature there is no known solvent for PPS, and PEEK is only attacked by 98% sulphuric acid. 

TEM is a direct analysis tool for knowing if metal clusters are present in catalytic solutions. This technique permits to define the size, structure, morphology and state of aggregation of the metal particles [11]. Hence, this technique can be in particular useful to identify nanoclusters in metal-catalysed reactions, using molecular complexes as catalytic precursors. But the catalytic activity of these observed nanoclusters must be further checked. 

Phospholipids are amphiphilic compoimds with high surface activity. They can significantly influence the physical properties of emulsions and foams used in the food industry. Rodriguez Patino et al. (2007) investigated structural, morphological, and surface rheology of dipalmitoylpho-sphatidylcholine (DPPC) and dioleoyl phosphatidylcholine (DOPC) monolayers at air-water interface. DPPC monolayers showed structural polymorphisms at the air-water interface as a function of surface pressure and the pH of the aqueous phase (Fig. 6.18). DOPC monolayers showed a... 

A vast body of literature tackles the different aspects of anodic oxidation, including the growth, structure, morphology, and proper-... 

In what manner are the oxide structure, morphology, and properties modified by incorporated anions and other electrolyte species ... 

B. Wunderlich, Macromolecular Physics, Crystal Structure, Morphology and Defects, Vol. 1, Academic Press, New York, 1973. 

Wunderlich B (1973) Macromolecular physics, vol 1. Crystal structure, morphology, defects. Academic, New York, p 68... 

The focus of the work described here is on understanding the mechanisms of compound electrodeposition and how to control structure, morphology and composition. The primary tool for understanding compound electrodeposition and for improving control over the process has been the methodology of electrochemical atomic layer epitaxy (EC-ALE) [29, 73-75],... 

Kale, R. B. Lokhande, C. D. 2005. Influence of air annealing on the structural, morphological, optical and electrical properties of chemically deposited ZnSe thin films. Appl. Surf. Sci. 252 929-938. 

Pappas, G. D. and Waxman, S. Synaptic fine structure morphological correlates of chemical and electronic transmission. In G. D. Pappas and D. P. Purpura (eds.), Structure and Function of Synapses. New York Raven Press, 1972, pp. 1-43. 

Figure 10.7. Small-angle X-ray scattering curves of microphase-separated samples and drawings of the corresponding structure morphologies.

Structural steels, tellurium in, 24 425 Structure(s), see also Chain structure Chemical structures Cocontinuous structures Controlled structure Crystal structure Molecular structure Morphology Phase structure of carbon fibers, 26 737-739 detersive systems for, 8 413t HDPE, 20 157-162 LLDPE, 20 182-184, 203-205 polyesterether elastomer, 20 72-73 polyester fiber, 20 21 polyether antibiotics, 20 137-139 polyimide, 20 276-278 polymer, 20 395-405 protein, 20 449 PTT, 20 68t... 

Since excellent reviews on block copolymer crystallization have been published recently [43,44], we have concentrated in this paper on aspects that have not been previously considered in these references. In particular, previous reviews have focused mostly on AB diblock copolymers with one crystal-lizable block, and particular emphasis has been placed in the phase behavior, crystal structure, morphology and chain orientation within MD structures. In this review, we will concentrate on aspects such as thermal properties and their relationship to the block copolymer morphology. Furthermore, the nucleation, crystallization and morphology of more complex materials like double-crystalline AB diblock copolymers and ABC triblock copolymers with one or two crystallizable blocks will be considered in detail. 

Block copolymer Structure Morphology Orientation method Ref. 

The unique optoelectronic properties of polysilanes are perhaps the most important and interesting feature of these materials. Understanding the interrelation between these properties and the polymer structure, morphology,... 

B. WunAetlvda., Macromolecular Physics Vol.l (Crystal Structure, Morphology, Defects), Academic Press (1973). 

The influence of pyrolysis conditions on the structure, morphology, electrical properties, and electrochemical behavior has been investigated. Raman spectroscopy shows that characteristic sp carbon bands form from the pyrolysis treatments. The electrochemical properties for a few of the electrode systems have been reported and, for the most part. 

Structure, Morphology, Physical Formats and Characterization of Polymer Supports... 

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