



@article {2581,
	title = {ESR spectroscopy to determine the molecular mobility of poly(ethylene oxide) grafts in amphiphilic graft copolymers},
	journal = {Macromolecular Rapid CommunicationsMacromol. Rapid Commun.},
	volume = {19},
	year = {1998},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: MRCOELanguage of Original Document: EnglishCorrespondence Address: Ji, J.; INEB-mat, Rua do Campo Alegre, 823, 4150 Porto, PortugalReferences: Bots, J.G.F., Van Der Does, L., Bentjes, A., (1986) Biomaterials, 7, p. 393;Osterberg, E., Holmberg, K., Schuman, T.P., Riggs, J.A., Burns, N.L., Van Alstine, J.M., Harris, J.M., (1995) J. Biomed. Mater. Res., 29, p. 741; 
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},
	month = {1998///},
	pages = {473 - 477},
	abstract = {The ethylene oxide (EO) mobility in polystyrene-graft-[poly(ethylene oxide)] (PS-g-PEO) and polystyrene-graft-[stearyl poly(ethylene oxide)] (PS-g-SPEO) copolymers was evaluated by spin probe techniques. The ESR spectra indicate that 4-hydroxyl-TEMPO (TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) is strongly biased to the PEO phase of the PS-g-(S)PEO membranes. The rotational correlation time τ                        c can also be employed to assess the PEO mobility in PS-g-(S)PEO membranes. Although τ
                        c of PS-g-(S)PEO usually decreases with increasing surface density of EO, it is of interest that τ
                        c is rather high when the surface within a depth of at least 5 nm is fully occupied by SPEO (sample PS-g-SPEO-72.6).
},
	isbn = {10221336 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032352685\&partnerID=40\&md5=2d915a1de24f503ed01fc4c5ee85e639},
	author = {Ji, J. and Feng, L. and Qiu, Y. and Yu, X.}
}
