Hydrophile-hydrophobe ratio

A higher hydrophilic/hydrophobic ratio is better for biodegradation. 

Bauduin, P., Testard, F., Berthon, L., Zemb, T. 2007. Relation between the hydrophile/ hydrophobe ratio of malonamide extractants and the stability of the organic phase Investigation at high extractant concentrations. The Royal Society of Chemistry. Physical Chemistry Chemical Physics 9(28) 3776-3785. 

The transport mechanisms through zeolite membranes depend on different variables such as operation conditions (especially temperature and pressure), membrane pore size distribution, characteristics of the pore surface of the zeohtic-channel network (hydrophilicity/hydrophobicity ratio), as well as the characteristics of the crystal boundaries and the characteristics of the permeating molecules (kinetic diameter, molecular weight, vapor pressure, heat of adsorption), and their interactions in the mixture. 

Together with TPPTS, TPPMS and TPPDS maintain their importance for other applications. With their different grades of sulfonation, they allow a fine tuning of the hydrophilic/hydrophobic ratio of the catalyst during biphasic operation, when necessary (e. g. [14, 109]). 

Quaternization of poly(4-VP) with alkyl halides and reaction of poly(VBC) with various tertiary amines result in cationic polyelectrolytes with a variety of charge density and of the hydrophilic-hydrophobic ratio of... 

An optional third component to the polymer system is a low molecular weight, absorbable, block copolyester that serves as a plashcizer. Such a copolymer has hydrophilic and hydrophobic components that are similar or identical to those of the base copolymer, with the exception of having a higher hydrophilic/hydrophobic ratio. This optional component can modulate the rheological properhes, gel-formation time, and mechanical disposition of the primary copolymer at the site of application. In addition, this component can ... 

The behavior of the adsorption and desorption of blood proteins or adhesion and proliferation of different types of mammalian cells on pol)meric materials depends on the surface characteristics such as wettability, hydrophilicity/hydrophobicity ratio, bulk chemistry, surface charge and charge distribution, surface roughness, and rigidity. 

Chemogradient surface The surface whose properties such as wettability, surface charge, and hydrophilicity/hydrophobicity ratio are changed gradually along the material length. 

A.J. Campillo-Fernandez, R.E. Unger, K. Peters, S. Halstenberg, M. Santos, M. Salmeron Sanchez, et al.. Analysis of the biological response of endothelial and fibroblast cells cultured on synthetic scaffolds with various hydrophilic/hydrophobic ratios influence of fibronectin adsorption and conformation. Tissue Eng. Part A 15 (2009)1331-1341. 

Polymeric micelles are colloidal particles formed by the self-assembly of amphiphilic block polymers (at certain hydrophilic/hydrophobic ratio of the blocks... 

The first implication is recognized from the elevation of surface tension with molecular weight. This is in accord with expectation, since the hydrophile-hydrophobe ratio in the oligomer increases with molecular weight. The second implication is recognized from the near equality of the maximum slopes of the two plots. 

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