Poly with side chains

Figure 20. Bouquet molecules having a macrocyclic 18-crown-6-ether annulus 18 and a cyclodextrin annulus 19. Figure shows poly(oxyethylene) side chains (a). Analogous compounds with polymethylene side chains (b) were also prepared. ...

In Sec. V we extend the second study to the single-molecule regime using CV as a single-molecule probe [15]. From the observation of biexponential decays of MG fluorescence above and below Tg [12], we assume that polymers with side chains have two sites one is a liquid-like site which causes fast fluorescence decays and the other is a solid-like site which causes slow fluorescence decays. We succeeded in identifying the above assumption at room temperature (23°C) by examining fluorescence properties of individual CV molecules embedded in poly (methylmethacrylate) (PMMA), for which Tg = 114°C [22],... 

Another type of noncovalent interaction, namely electrostatic ones, has recently been exploited by Wang et al. in the fabrication of a hybrid film containing a water-soluble poly(thiophene) derivative and CdSe NCs.141 In this case CdSe NCs were functionalized with 11-mercaptoundecanonic acid (MUA) molecules prior to their self-assembly with side chain-functionalized poly(thiophene), that is, poly(3-(3 -thienyloxy)propyltrimethylammonium bromide) (P3TOPA). 

Initially, poly(styrenesulfonic acid) (PSSA) and sulfonated phenol-formaldehyde membranes were used for PEFCs, but the useful life of these materials was limited because of significant degradation under fuel-cell operating conditions. A critical breakthrough was achieved with the introduction of Nafion , a perfluorinated polymer with side chains... 

Berlinova IV, Amzil A, Tsvetkova S, Panayotov IM. Amphiphilic graft copolymers with poly(oxyethylene)side chains synthesis via activated ester intermediates—properties. J Polym Sci Part A Polym Chem 1994 32 1523-1530. 

A comparison of poly(3-alkylthiophene)s (P3ATs) with side chains ranging from butyl (35d) to dodecyl (35g) showed a non-monotonic dependence of field-effect mobility on alkyl chain length (Figure 3.1.13).[11,210] The average mobility varied... 

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