Poly film surface-initiated ATRP

Markedly, surface-initiated ATRP provides the opportunity to use a variety of functional monomers, to tailor the composition and thickness of the brushes, and to prepare multiple functional surfaces. For example, Zhang et al. prepared poly(methyl methacrylate) (PMMA), poly(acrylamide) (PAAM), and their diblock copolymer (PMMA/PAAM) on the surface of PET film by surface-initiated ATRP [59]. The results indicated that the surface properties of PET film were greatly improved by grafted polymer, the surface of PET film modified by PAAM was hydrophilic, and the surface of PET film modified by diblock copolymer was amphiphilic. This kind of modified PET film may be applied as biocompatible materials, amphiphilic functional film, or conductive film. 

Zhang, H., Shouro, D., Itoh, K., Takata, T., Jiang, Y. 2008. Grafting polymer from poly(ethylene terephthalate) films by surface-initiated ATRP... 

He, R, Luo, B., Yuan, S., Liang, B., Choong, C., Rehkonen, S.O., 2014. PVDF film tethered with RGD-click-poly(glycidyl methacrylate) brushes by combination of direct surface-initiated ATRP and chck chemistry for improved cytocompatibihty. RSC Adv. 4,105-117. http //dx.doi. org/10.1039/c3ra44789h. 

As an illustration of the application of these techniques, the surface of poly(ethylene terephthalate) (PET) films has been modified via the grafting of polyacrylamide (PAM) by surface-initiated atom transfer radical polymerization (ATRP) and UV-initiated grafting in order to obtain a film of PET with a hydrophilic surface [15c],... 

Farhan et al. [25] reported surface-initiated polymerizations from polymeric surfaces of commercially important polyester films, poly(ethylene terephthalate) (PET), and poly(ethylene naphthalate) (PEN). Patterned self-assembled monolayers (SAMs) of the trichlorosilane initiator were first immobilized on the surface through a soft lithographic method of microcontact printing (ICP). Grafting from the surface was initiated via controlled ATRP, under aqueous conditions, to create patterned brushes of the ther-moresponsive polymer poly(N-isopropylacrylamide) (PNIPAm), as shown in Figure 1.8. 

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