Applications of Scanned Probe Microscopy to Polymers (ACS by James D. Batteas, Chris A. Michaels, Gilbert C. Walker

By James D. Batteas, Chris A. Michaels, Gilbert C. Walker

Applications of Scanned Probe Microscopy to Polymers stresses the research of polymer and biopolymer surfaces utilizing the ever-expanding methodologies of scanned probe microscopies. This publication comprises reports of optical homes by means of near-field methodologies, neighborhood mechanical homes of polymer movies via AFM, the dynamics and mechanics of unmarried molecules probed by means of AFM, and methodologies for more suitable imaging modes. a prime concentration of this publication is the quantitative size of floor houses via scanned probe ideas, which illustrates how the sphere has developed and what new demanding situations lie forward. purposes of Scanned Probe Microscopy to Polymers could be useful to scholars and pros trying to find experiences that illustrate what sorts of polymer fabric houses will be probed through scanned probe microscopies.

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In our group, we have been studying the local dynamics associated with photorefractivity in PDLC systems using near-field scanning optical microscopy (NSOM) (17,18). ; ACS Symposium Series; American Chemical Society: Washington, DC, 2005. ch003 27 reorientation dynamics with sub-diffraction limited resolution (19). Therefore, it represents a valuable means by which the mechanism of photorefractivity in micro/mesostructured composites can be explored. In this paper, we summarize the results of both experimental and theoretical studies performed in our group on photorefractive polymer/liquid-crystal composites and present new results in support of our previous conclusions (17).

A) Perylene excitation (dashed) and emission (solid) spectra. B) NDI excitation (dashed) and emission (solid) spectra. C) Stern-Volmerplot of perylenefluorescencequenching vs. NDI concentration. D) Photorefractive gain ratio from asymmetric two-beam coupling experiment. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2005. 30 aggregation. Hence, it may be concluded that the effects described below result from interactions between perylene and NDI monomers. The results of perylene fluorescence quenching studies performed as a function of NDI concentration are shown in Figure 1C.

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