Son, Hyunjoo; Jang, Yeongseon; Koo, Jaseung; Lee, Jeong-Soo; Theato, Patrick; Char, Kookheon published the artcile< Penetration and exchange kinetics of primary alkyl amines applied to reactive poly(pentafluorophenyl acrylate) thin films>, SDS of cas: 71195-85-2, the main research area is alkyl amine polypentafluorophenyl acrylate exchange kinetics.
We investigated the mechanism of primary amine-induced post-polymerization modification of active ester polymer thin films composed of pentafluorophenyl acrylate (PFPA) polymers. The most important phys. parameters in the post-polymerization modification are the mol. weight of the PFPA polymers and the aliphatic chain length of the primary amines. The effects of these two parameters on the penetration depth, as well as the exchange kinetics were systematically studied by neutron reflectivity and quartz crystal microbalance with dissipation, accompanied by the measurement of surface morphol. changes by an at.-force microscopy and optical microscopy. The spin-cast PFPA polymer thin films showed distinctive differences in the exchange kinetics, as well as the penetration depth of amines as a function of the PFPA polymer mol. weight The aliphatic chain length of primary alkyl amines markedly influenced the penetration kinetics into low-mol. weight poly(PFPA) films, whereas there was no significant penetration effect on the high-mol. weight films. The high-mol. weight of the poly(PFPA) films led to the deceleration of the dissolution of amine-functionalized polymer chains in a good solvent. The results of this study may provide a good phys. background for developing reactive poly(PFPA) thin film platforms based on simple and quant. post-modification with amine-containing mols.
Polymer Journal (Tokyo, Japan) published new progress about Diffusion. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, SDS of cas: 71195-85-2.
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