Morphology development

In a fundamental sense, the miscibility, adhesion, interfacial energies, and morphology developed are all thermodynamically interrelated in a complex way to the interaction forces between the polymers. Miscibility of a polymer blend containing two polymers depends on the mutual solubility of the polymeric components. The blend is termed compatible when the solubility parameter of the two components are close to each other and show a single-phase transition temperature. However, most polymer pairs tend to be immiscible due to differences in their viscoelastic properties, surface-tensions, and intermolecular interactions. According to the terminology, the polymer pairs are incompatible and show separate glass transitions. For many purposes, miscibility in polymer blends is neither required nor de-... 

Gupta RC, Rech RH, Lovell KL, et al. 1985. Brain cholinergic, behavioral, and morphological development in rats exposed in utero to methyl parathion. Toxicol Appl Pharmacol 77 405-413. 

Fig. 26 Effect of quenching speed on the morphology that develops [16]. a Time-temperature chart recorded in the sample spot, b Sequence showing morphological development when a PET melt is quenched moderately (see dotted line in a). Scale bar represents 50 pan. c Sequence showing morphological development after a PET melt is quenched rapidly to Tx = 130 °C (see solid line in a). Scale bar represents 20 xm...

Laukaitis, G. Lindroos, S. Tamulevicius, S. Leskela, M. 2001. Stress and morphological development of CdS and ZnS thin films during the SILAR growth on (100)GaAs. Appl. Surf. Sci. 185 134-139. 

Morphology Development of Solvent-Modified and Macroporous Epoxy Networks Prepared via CIPS... 

In polymeric materials, the morphology development upon spinodal decomposition proceeds through various stages [92,93]. In the early stage of decomposition a co-continuous structure develops. A dispersed two-phase structure results only in the late stage of phase separation and the shape of the domains is not uniform. The morphology development upon spinodal decomposition is presented in Fig. 6. 

Within the following section it is intended to identify the phase separation mechanism and morphology development and to investigate the effect of reaction parameters on pore size and distribution. 

SiisstrunkU, Pidoux J,Taubert S, Ullmann A, Thompson CJ, Pleiotropic effects ofcAMP on germination, antibiotic production and morphological development in Streptomyces coelicolor, Mol Microbiol 30 33—46, 1998. 

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