Multifunctional parallelism with

Figure 6. Schematic outlining the steps to produce a multifunctional surface with parallel reactivity. The aminomethyl group only reacts with the ester, and the trifluoroacetyl group only reacts with the hydrazide. (Reproducedfrom reference 56 with permission. Copyright 2006 Wiley Interscience)...

Recent developments in polymer chemistry have allowed for the synthesis of a remarkable range of well-defined block copolymers with a high degree of molecular, compositional, and structural homogeneity. These developments are mainly due to the improvement of known polymerization techniques and their combination. Parallel advancements in characterization methods have been critical for the identification of optimum conditions for the synthesis of such materials. The availability of these well-defined block copolymers will facilitate studies in many fields of polymer physics and will provide the opportunity to better explore structure-property relationships which are of fundamental importance for hi-tech applications, such as high temperature separation membranes, drug delivery systems, photonics, multifunctional sensors, nanoreactors, nanopatterning, memory devices etc. 

In addition, because the controller was integrated into the same assembly as the drive, the only board that needed to be installed in the computer was an adapter that converted signals between the motherboard and the drive/control-ler. The board is normally called a pass-through or paddle board. (This board is often, incorrectly, called a controller. The term is incorrect because the paddle board is often integrated with a floppy controller, two serial ports, a game port, and a parallel port. In fact, this combination is normally called a multifunction interface board.) With some of today s systems, the IDE adapter is integrated into the motherboard. 

Fig.4.7a-c a, b, schematic diagram of a dual column FI on-line preconcentiation manifold for flame AAS with parallel sample loading and sequential elution using two pumps, a, loading sequence b, elution sequence for column Ca. Pi, Pn, peristaltic pumps Sa, Sb, samples Ea, Eb eluent (2 M HNO3) Ra, Rb, ammonium acetate buffer, T, timer for pump control V, 8-channel multifunctional valve Ca> Cb columns packed with chelating ion-exchangers W, Wa, Wb, waste flows Wa same waste line as Wa and AAS, flame AA detector [12]. 

Fig.4.9 Schematic diagram of a dual column FI on-line preconcentration manifold for vapour generation AAS with parallel column loading and sequential elution, a, elution sequence for column CA b. loading sequence. V, 8-channel multifunctional valve (missing channels in figure are blocked) Vjj, 2-way valve for controlling column elution sequence. SA. SB, samples B, buffer, E, eluent R, reductant SP, gas-liquid seperator. A, quaitz tube atomizer. Ar, argon flow W, waste [26].

Metal containing polyynes are multifunctional materials which combine the properties of organic polymers with those of metal centers coordinated to the organic moiety and are able to form nanotemplates, colloidal photonic crystals, multilayer capsules and hollow vesicles [127, 128], An example of a rod-like polymetallayne self-assembly in hollow nanorods has been recently reported [129] the computer simulations of the nanostructure show that the polymer chains are ordered in parallel lines that give rise to a tubular morphology rather unusual for these materials, but promising for sensor devices applications. 

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