Plasma-grafted poly

You, S. J., Semblante, G. U., Lu, S. C., Damodar, R. A., Wei, T. C. (2012). Evaluation of the antifouUng and photocatalytic properties of poly(vinylidene fluoride) plasma-grafted poly(acryhc acid) membrane with self-assembled Ti02. Journal of Hazardous Materials, 237—238, 10—19. http //dx.doi.Org/10.1016/j.jhazmat.2012.07.071. 

In a recent development, Ito and Yamaguchi [45] plasma-grafted poly(N-isopropylacrylamide) (pNIPA) chains partially substituted with Ba +-selective crown ether side chains into the micropores ofa polyethylene membrane. At 40 °C and in the absence of Ba +, the pNIPA chains are relatively collapsed onto the pore walls, and the membrane is relatively permeable to water. When Ba enters the pores and binds to the immobilized crown ethers, the polymer becomes a polyelectrolyte and swells, substantially reducing hydraulic permeability. On the other hand, fixed charge present on the swollen polymer excludes further entry of Ba + because of buildup ofa Donnan potential. 

Heinz P, Bretagnol F, Mannelli I, Sirghi L, Valsesia A, Ceccone G, et al. Poly(N-isopropyla-crylamide) grafted on plasma-activated poly(ethylene oxide) thermal response and interaction with proteins. Langmuir 2008 24(12) 6166—75. 

Li-hua, L., Shan, D., Ye, T, Jin-huan, T. and Chang-ren, Z. 2008. Surface modification of poly-D, L-lactic acid film with plasma graft polymerization. Tissue Eng. Res. Clin. Recovery 12 1-10. 

Plasma grafting of poly 2-(A,A-dimethyl) aminoethyl methacrylate on a micro-porous PE substrate resulted in the membrane having amine moieties (Matsuyama et al. 1996). This membrane showed high permselectivity for CO2 over Nj (130 for swollen membrane). 

Matsuyama, H., Teramoto, M. and Sakakura, H. 1996. Selective permeation of COj through poly 2-(N,N-dimethyl) aminoethyl methacrylate membrane prepared by plasma-graft polymerization technique. 

Xie, R., Chu, L.-Y., Chen, W.-M., Xiao, W., Wang, H.-D. and Qu, J.-B. 2005. Characterization of microstructure of poly(N-isopropylamide)-grafted polycarbonate track-etched membranes prepared by plasma-graft pore-filling polymerization.. 7. Memh. Sci. 258 157-166. 

Jin J, Jiang W, Yin J, Ji X, Stagnaro P. Plasma proteins adsorption mechanism on polyethylene-grafted poly(ethylene glycol) surface by quartz crystal microbalance with dissipation. Langmuir 2013 29 6624-33. http //dx.doi.org/10.1021/la4017239. 

Ding Z, Chen J, Gao S, Chang J, Kang ET. Immobilization of chitosan onto poly-l-lactic acid fihn surface by plasma graft polymerization to control the morphology of fibroblast... 

Oxygen plasma treatment was used to induce the graft polymerization of AA on PHBHV films. The peroxides generated at the surface initiated the polymerization of AA at 75°C and [28] the grafted poly(acrylic acid) (PAA) chains were then coupled with amino-terminated poly(ethylene oxide) to prepare PHBHV-g-(PAA- -PEO). 

Yang, W., Chen, S., Cheng, G., Vaisocherova, H., Xue, H., Li, W., et al. (2008). Film thickness dependence of protein adsorption from blood serum and plasma onto poly(sulfobetaine)-grafted surfaces. Langmuir, 24, 9211-9214. 

In Chapter 18, Matsuyama and Teramoto report the preparation of new types of cation-exchange membranes by grafting acrylic acid and methacrylic acid to substrates, such as microporous polyethylene, polytetrafluoroethylene, and poly[l-(trimethylsilyl)-l-propyne], by use of a plasma graft polymerization technique. Various monoprotonated amines are immobilized by electrostatic forces in the ion-exchange membranes and used as carriers for carbon dioxide. With these membrane systems carbon dioxide/nitrogen selectivities of greater than 4700 are obtained with high carbon dioxide flux. 

Microporous polyethylene (PE) membranes with various pore diameters and porosities and microporous polytetrafluoroethylene (PTFE) membrane were used as substrates for the plasma graft polymerization (Table II). Besides these porous substrates, homogeneous poly[ l-(trimethyl si lyl)-l-propyne] (PTMSP), which has the highest gas permeability among polymeric materials, was used as the substrate. The poly[l-(trimethylsilyl)-l-propyne] was synthesized from l-(trimethylsilyl)-l-propyne according to the literature procedure (19). Films were prepared by casting polymers from toluene solutions. Hereafter, the respective substrate membranes will be abbreviated as shown in Table II. 

T. Yamaguchi, H. Hayashi, S. Kasahara and S. Nakao, Plasma-graft pore-filling electrolyte membranes using a porous poly(tetrafluoroethylene) substrate. Electrochemistry, 70(12), 950-952 (2002). 

The commercial cardo poly(ether ketones) (PEK-C) were selected by Liu et al. to prepare AEMs by usual three-step postmodilication method (Figure 11.8). The final membranes showed ionic conductivity varied from 1.6 to 5.1 mS/cm over the temperature range of 20°C-60°C. Although its ionic conductivity was quite lower compared with other PEEK-based AEMs, the methanol permeability was less than 10" cm% at 30°C in 4 M methanol solutions. Except this way, Zhang and colleagues successfully introduced benzyl chloromethyl groups to the PEK-C matrix via plasma graft polymerization. This approach enables a well preservation in the structure of... 

An alternative photo-SIP approach was described by Kang and coworkers, where they used an argon plasma to oxidize alkylthiolate SAMs on planar gold [55]. The plasma treatment oxidized carboxy-terminated SAMs to peroxide moieties. UV irradiation in the presence of acryhc acid and allylpentafluorobenzene yielded ultra-thin graft layers of 6-7nm. The poly(acrylic acid) layers were found to adsorb Fe " ions from solution. This particular photoinitiation method yields low-density polymer brush films. 

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