Chemical structure effects

Chemical Structures Effective in Improving the Gasoline Octane Number... [Pg.352]

Eluite, chemical structure, effect on retention in chromatography with polar sorbents, 90-92... [Pg.166]

Because of increasing knowledge of the fate of chemicals, structure-effect relations of chemicals, basic mechanisms leading to adverse effects, routes of exposure from emission to intake, etc., both the concentration method and the chemical tests with the short-term biotests can be optimized in selectivity. [Pg.69]

Chemical structure effect on the excited-state relaxation dynamics of the PYP chromophore... [Pg.421]

As regards the chemical structure effect, it clearly appears that replacing the zso-phthalic residue by a tere-phthalic one, considerably increases the temperature range in which SDZs exist. In contrast, the length of the lactam-12 unit does not have any effect. It is worth noting that an opposite influence between the nature of the phthalic group and the length of the lactam-12 unit happens for Tn-... [Pg.335]

In this regime, corresponding to temperature ranges b and c, analysis of the chemical structure effect requires taking into account the ratios Mw/Me and Mn/Me. In all cases, only polyamide samples with a large enough MW to present the temperature range b are discussed. [Pg.344]

In order to achieve a more accurate analysis of the chemical structure effect, gradual changes of chemical structure were performed for each polymer type, e.g. MMA-co-maleimide (CMIMx) and MMA-co-glutarimide (MGIMx) copolymers, BPA-PC and TMBPA-PC, and the content and nature (iso-(l) or fere(T)) of phthalic units in aryl-aliphatic copolyamides (xTyli.y and... [Pg.360]

Some casual observers have suggested that, because such a diverse array of chemical structures effectively ripens sugarcane,... [Pg.276]

Fig. 1. Chemical structure, effect on mean arterial blood pressure (MAP - ) and...

K.M. Makhkamov, A.D. Vimik, Z.A. Rogovin Investigation of chemical structure effect of some stabilizers on light-stability of acetylcellulose fabric/ITextile industry (1965), No 1, 28-36 (in Russian). [Pg.168]

However, as we shall see, the results in the asymptotic domain should reveal a different property of polymer chains. Criticism came from Yoon and Flory,10 disturbed by the absence of local chemical structure effects. These authors modelled the atactic polystyrene chain of N beads as realistically as they could (see Chapter 1). Thus, Yoon and Flory accounted for interactions between nearest neighbour monomers in particular, these interactions are responsible for the fact that the three orientations of a bond j, relative to bonds j — 1,/ — 2, are weighted differently in relation to the stereochemical composition. Moreover, we have seen in Chapter 1 that, for atactic polystyrene, pairs of successive benzene rings are slightly more frequent in syndiotactic than in isotactic positions. [Pg.727]

Chemical structure, effect on lubricating properties of liquid crystals, 36,37f Cholesteric liquid crystals description, 49 structure, Af ... [Pg.128]

JONES AND EISS Chemical Structure Effect on Polyimide Thin Films... [Pg.137]

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