We hypothesized that the synthetic musks, which are small-molecular-weight, moderately hydrophobic compounds, might be such chemosensitizers, and preliminary studies indeed showed inhibition of efflux transporters in gill tissues of a marine mussel (Luckenbach et al. 2004).
Methanol was employed in this study to extract the low molecular weight and moderately polar substances because of its wide solubility properties.
In this study, methanol was used to extract low molecular weight and moderately polar substances because of its wide range of solubility.
25 FFA, characterized by high molecular weight (34,000 47,000) and moderately low surface activity, was shown to be involved in foam stability whereas FFB, melanoidin-proteinaceous material, with lower molecular weight (8,500 17,000) and high surface activity was shown to be involved in foamability.
Interestingly, TPTs possess moderately high molecular weight, are organosoluble, amorphous in nature and have reasonably high thermal stability with Tg > 400 °C.
Bisphenols with sufficiently bulkyalkyl spacers, such as 4,4′-cyclohexylidenebisphenol, 4,4′- s-butylidene bisphenol, 4,4′- s-butylidene bisphenolisphenol, 4,4′- s-butylidene bisphenol4,4′- 1-phenylethyl-ideneethylphenol) and 4,4′- 1-phenylethyl-idenebis(2,6-dimethylphenol) gave polyesters with high to moderately high molecular weight.
Cooling to room temperature of a solution comprising, for instance, 3.0 wt% of a moderately high molecular weight i-PP (Mv=1.3×106 g/mol) and as little as 0.0075 wt% DMDBS (0.25 wt% based on the polymer) resulted in the fast formation of highly ductile gels.
A polymer solution of sufficient viscosity and moderately high molecular weight is drawn from a spinneret under the influence of a high voltage electric field.
Here, we chose to use PEG because of its low toxicity and its availability at a molecular weight having low vapor pressure when moderately heated, but high vapor pressure at room temperature so that the lenses do not evaporate immediately after deposition.
All these complexes gave moderately isotactic polylactides with controlled molecular weight and very narrow molecular weight distributions.
M, molecular weight marker.
