Gradient library

Comb copolymers, 7 610t Combed yarn, 11 178 Combes synthesis, of quinolines, 21 189 Combicat, 7 387, 392 Combinational libraries, 7 382 characterization, 7 404-405 composition gradient libraries, 7 407 design, 7 399-400 fabrication, 7 414-419 temperature gradient libraries, 7 407—408 thickness gradient libraries, 7 406 Combination electrodes, 14 30 Combination vaccines, 25 504-505 Combinatorial biology, 16 414 Combinatorial biosynthesis, 15 301-302, 305... [Pg.201]

To study the effects of composition on the photopolymerization behavior of acrylates, the group of Bowman et al. prepared gradient libraries where acrylate composition was varied in one dimension and light exposure was varied using a moveable shutter in the orthogonal direction [17-21]. An FTIR microscope was used to characterize the conversion across the samples and the data from multiple libraries was then used to derive kinetic models for the photopolymerization. [Pg.5]

More specific libraries, such as polymer thin film (gradient) libraries or libraries prepared via controlled polymerization techniques, are not part of this overview, but will be discussed in detail in other chapters of this book [94, 95],... [Pg.12]

Gradient Library Fabrication Methods and Application Examples. 66... [Pg.63]

A key aspect of gradient libraries is that they reside on a single substrate, and this has several advantages. Foremost, gradient libraries yield an entire set of systematic results from a single compound experiment. In this sense, they are self-reporting . [Pg.65]

Fig. 7 2D thickness-surface energy gradient library for mapping the effects of these parameters on the self-assembly of PS-b-PMMA block copolymer thin films. See text for a fuU description. Lq is the equilibrium self-assembly period and h is the film thickness. Dashed white lines delineate the neutral surface energy region, which exhibits nanostructures oriented perpendicular to the substrate plane. (Derived from [18] with permission)... [Pg.73]

Fig. 9 Optical micrographs of dewetted polystyrene droplets collected from points along a chemical gradient library. Scale bar (red) is approximately 20 um. As discussed in the text, this library was used to examine the transition between pattern directed dewetting (left micrographs) and isotropic dewetting from a homogeneous surface (right micrograph). (Reproduced with permission from [35])...

Fig. 12 Surface expression of block segments in block copolymer gradient libraries after treatment to two solvents. See text for details a illustration of surface expression of PnBMA black) and PDMAEMA blue) block copolymer brush segments after water and hexane treatments b water contact angle data from three PnBMA-b-PDMAEMA block copolymer gradient libraries after hexane filled symbols) and water open symbols) treatments. (Derived from [58] with permission)...

Fig. 13 Illustration of a method for producing polymer blend composition gradient libraries. A and B are the polymer solutions to be blended.

Fig. 14 Creation of a single specimen polymer blend phase diagram from orthogonal polymer composition and temperature gradients. The polymers are polystyrene and poly(vinyl methyl ether) (PVME) a composition library placed orthogonal to a temperature gradient b completed gradient library polymer blend phase diagram. White points are data derived from traditional measurement for comparison. See text for details, (b reproduced with permission from [3])...

Fig. 16 Representative data from the surface wrinkling metrology, demonstrating the unprecedented range of moduli and the precision that the methodology unlocks a modulus of a thickness gradient library of PS (reproduced with permission from [72]) b modulus as a function of composition for P(S-I-S) triblock copolymer blends c modulus as a function of thickness for ultrathin PS films (reproduced with permission from [74]). The lines are meant to guide the eye and the error bars represent one standard deviation of the data, which is taken as the experimental uncertainty of the measurement...

Figure 5 Iodine-enriched polyarylate gradient scaffolds for improved X-ray imaging, (a, b) Structures of the two polyarylates used to make the gradient library, (c) Deposition and mixing of the two polymers results in polymer scaffolds with varying composition, (d) Representative scaffold libraries. Reprinted from Yang, Y. Y. Dorsey, S. M. Becker, M. L. etal. /omater/a/s2008, 29( 2), 1901-1911, with permission from Elsevier.

Early combinatorial materials research used sputtering methods to prepare composition gradient libraries for measuring the phase behavior of ternary metal alloys (20) and other inorganic materials (25). However, limitations in computing capacity and instrument automation overshadowed the benefits of combinatorial... [Pg.1599]

Pig. 6. Distribution of discrete measurement sites of resolution LxL over a continuous gradient library. Measurement sites have average T and (p with gradient variance AT and A. ... [Pg.1608]

Phase Behavior. Figure 9 presents a photograph of a typical temperature-composition library of the PS/PVME blend (discussed under Composition Gradient Libraries) after 90 min of annealing. As Figure 9 indicates, the lower critical solution temperature (LOST) cloud point curve can... [Pg.1610]

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