dc.creatorLuo C.
dc.creatorAtvars T.D.Z.
dc.creatorMeakin P.
dc.creatorHill A.J.
dc.creatorWeiss R.G.
dc.date2003
dc.date2015-06-30T17:26:35Z
dc.date2015-11-26T15:38:53Z
dc.date2015-06-30T17:26:35Z
dc.date2015-11-26T15:38:53Z
dc.date.accessioned2018-03-28T22:47:24Z
dc.date.available2018-03-28T22:47:24Z
dc.identifier
dc.identifierJournal Of The American Chemical Society. , v. 125, n. 39, p. 11879 - 11892, 2003.
dc.identifier27863
dc.identifier10.1021/ja0362205
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0141818024&partnerID=40&md5=7a56f06cadb5572bb02cf9fa487bfd28
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/101996
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/101996
dc.identifier2-s2.0-0141818024
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1264009
dc.descriptionDeformation processes in gel-crystallized ultrahigh molecular weight polyethylene (UHMWPE) films with draw ratios (DR) as high as 96 have been investigated by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and positron annihilation lifetime spectroscopy (PALS). In addition, low concentrations of pyrene molecules have been introduced at the time of film preparation from the gels or afterward by sorption after film preparation, and the polarization of their electronic absorption and fluorescence spectra at different draw ratios has been measured over a large temperature range extending to below the glass transition. The pyrene-doped films have been irradiated to introduce covalently attached 1-pyrenyl groups, and these films at two draw ratios have been employed to investigate over large temperature ranges (1) the steady-state fluorescence intensity and (2) the rates of diffusion of N,N-dimethylaniline (DMA). These data have been correlated with the XRD, DSC, and PALS information obtained on the unmodified films. On the basis of analyses of this body of information, a novel deformation model that explains the decreased crystallinity and increased mean free volumes in gel-crystallized UHMWPE at low draw ratios is proposed. It involves "stretch" and "flip" motions of microfibrils present in the undrawn films. The high crystallinity content and stiffer chains due to drawing UHMWPE films result in weak α- and β-relaxation processes, slower diffusion of DMA than in undrawn films, and orientation factors for doped pyrene molecules that are constant over a large temperature range. The overall picture that emerges allows several aspects of the morphology of UHMWPE, a polymer of fundamental importance in materials research, to be understood.
dc.description125
dc.description39
dc.description11879
dc.description11892
dc.descriptionZiegler, K., Holzkamp, E., Breil, H., Martin, H., (1955) Angew. Chem., 67, pp. 541-547
dc.descriptionNatta, G., (1960) J. Polym. Sci., 48, pp. 219-239
dc.descriptionStevens, M.P., (1999) Polymer Chemistry, , Oxford University Press: New York
dc.descriptionChapters 1 and 8
dc.descriptionChanzy, H., Day, A., Marchessault, R.H., (1967) Polymer, 8, pp. 567-588
dc.descriptionSmith, P., Chanzy, H.D., Rotzinger, B.P., (1985) Polym. Commun., 26, pp. 258-260
dc.descriptionSmith, P., Chanzy, H.D., Rotzinger, B.P., (1987) J. Mater. Sci., 22, pp. 523-531
dc.descriptionRotzinger, B.P., Chanzy, H.D., Smith, P., (1989) Polymer, 30, pp. 1814-1819
dc.descriptionJoo, Y.L., Han, O.H., Lee, H.-K., Song, J.K., (2000) Polymer, 41, pp. 1355-1368
dc.descriptionWang, L.H., Ottani, S., Porter, R.S., (1991) Polymer, 32, pp. 1776-1781
dc.descriptionSchellekens, R., Bastiaansen, C., (1991) J. Appl. Polym. Sci., 43, pp. 2311-2315
dc.descriptionMarrs, H., Barton, D.C., Doyle, C., Jones, R.A., Lewis, E.L.V., Ward, I.M., Fisher, J., (2001) J. Mater. Sci.: Mater. Med., 12, pp. 621-628
dc.descriptionChodak, I., (1998) Prog. Polym. Sci., 23, pp. 1409-1442
dc.descriptionAggarwal, S.L., Tilley, G.P., Sweeting, O.J., (1961) J. Polym. Sci., 51, pp. 551-567
dc.descriptionKiho, H., Peterlin, A., Geil, P.H., (1964) J. Appl. Phys., 35, pp. 1599-1605
dc.descriptionSeto, T., Hara, T., Tanaka, K., (1968) Jpn. J. Appl. Phys., 7, pp. 31-42
dc.descriptionVan Aerle, N.A.J.M., Braam, A.W.M., (1988) J. Mater. Sci., 23, pp. 4429-4436
dc.descriptionLemstra, P.J., Van Aerle, N.A.J.M., Bastiaansen, C.W.M., (1987) Polym. J., 19, pp. 85-98
dc.descriptionVanderHart, D.L., Khoury, F., (1984) Polymer, 25, pp. 1589-1599
dc.descriptionRussell, K.E., Hunter, B.K., Heyding, R.D., (1997) Polymer, 38, pp. 1409-1414
dc.descriptionHu, X.P., Hsieh, Y.L., (1998) Polym. J., 30, pp. 771-774
dc.descriptionBowden, P.B., Young, R.J., (1974) J. Mater. Sci., 9, pp. 2034-2051
dc.descriptionLuo, C., Guadala, N.A., Price, J.L., Chodak, I., Zimerman, O.E., Weiss, R.G., (2002) Macromolecules, 35, pp. 4690-4701
dc.descriptionZamfirova, G., Perena, J.M., Benavente, R., Perez, E., Cerrada, M.L., Nedkov, E., (2002) Polym. J., 34, pp. 125-131
dc.descriptionUehara, H., Matsuda, H., Aoike, T., Yamanobe, T., Komoto, T., (2001) Polymer, 42, pp. 5893-5899
dc.descriptionSheiko, S., Frey, H., Möller, M., (1992) Colloid Polym. Sci., 270, pp. 440-445
dc.descriptionBentley, P.A., Hendra, P.J., (1995) Spectrochim. Acta, Part A, 51, pp. 2125-2131
dc.descriptionKunz, M., Drechsler, M., Möller, M., (1995) Polymer, 36, pp. 1331-1339
dc.descriptionSheiko, S.S., Möller, M., Kunz, M., Deckmann, H., (1996) Acta Polym., 47, pp. 492-497
dc.descriptionSmith, P., Lemstra, P.J., (1980) J. Mater. Sci., 15, pp. 505-514
dc.descriptionSmith, P., Lemstra, P.J., Pijpers, J.P.L., Kiel, A.M., (1981) Colloid Polym. Sci., 259, pp. 1070-1080
dc.descriptionSheiko, S.S., Kunz, M., Möller, M., (1993) Vysokomol. Soedin., 35, pp. 1903-1912
dc.descriptionMagonov, S.N., Sheiko, S.S., Deblieck, R.A.C., Möller, M., (1993) Macromolecules, 26, pp. 1380-1386
dc.descriptionNaciri, J., Weiss, R.G., (1989) Macromolecules, 22, pp. 3928-3936
dc.descriptionBrown, G.O., Zimerman, O.E., Weiss, R.G., (2002) Polymer, 43, pp. 6495-6503
dc.descriptionBrown, G.O., Guardala, N.A., Price, J.L., Weiss, R.G., (2002) J. Phys. Chem. B, 106, pp. 3375-3382
dc.descriptionHe, Z., Hammond, G.S., Weiss, R.G., (1992) Macromolecules, 25, pp. 1568-1575
dc.descriptionJenkins, R.M., Hammond, G.S., Weiss, R.G., (1992) J. Phys. Chem., 96, pp. 496-502
dc.descriptionTalhavini, M., Atvars, T.D.Z., Cui, C., Weiss, R.G., (1996) Polymer, 37, pp. 4365-4374
dc.descriptionZimerman, O.E., Cui, C., Wang, X.-C., Atvars, T.D.Z., Weiss, R.G., (1998) Polymer, 39, pp. 1177-1185
dc.descriptionZimerman, O.E., Weiss, R.G., (1998) J. Phys. Chem. A, 102, pp. 5364-5374
dc.descriptionKósa, C., Danko, M., Fiedlerová, A., Hrdlovic, P., Borsig, E., Weiss, R.G., (2001) Macromolecules, 34, pp. 2673-2681
dc.descriptionBoyd, R.H., (1985) Polymer, 26, pp. 323-347
dc.descriptionBoyd, R.H., (1985) Polymer, 26, pp. 1123-1133
dc.descriptionTalhavini, M., Atvars, T.D.Z., Schurr, O., Weiss, R.G., (1998) Polymer, 39, pp. 3221-3232
dc.descriptionJordens, K., Wilkes, G.L., Janzen, J., Rohlfing, D.C., Welch, M.B., (2000) Polymer, 41, pp. 7175-7192
dc.descriptionMatthews, J.L., Peiser, H.S., Richards, R.B., (1949) Acta Crystallogr., 2, pp. 85-90
dc.descriptionHermans, P.H., Weidinger, A., (1961) Makromol. Chem., 44-46, pp. 24-36
dc.descriptionBoontongkong, Y., Cohen, R.E., Spector, M., Bellare, A., (1998) Polymer, 39, pp. 6391-6400
dc.descriptionGeli, P.H., (1963) Polymer Single Crystals, , Wiley: New York
dc.descriptionMichl, J., Thulstrup, E.W., (1986) Spectroscopy with Polarized Light, , VCH: New York
dc.descriptionPhillips, P.J., (1990) Chem. Rev., 90, pp. 425-436
dc.descriptionGuillet, J.E., (1986) Photophysical and Photochemical Tools in Polymer Science, p. 467. , Winnik, M. A., Ed.
dc.descriptionD. Riedel: Dordrecht
dc.descriptionSaleem, M., Asfour, A.F.A., Dekee, D., Harrison, B., (1989) J. Appl. Polym. Sci., 37, pp. 617-625
dc.descriptionSchlotter, N.E., Furlan, P.Y., (1992) Polymer, 33, pp. 3323-3342
dc.descriptionHill, A.J., Weinhold, S., Stack, G.M., Tant, M.R., (1996) Eur. Polymer J., 32, pp. 843-849
dc.descriptionGu, W.Q., Hill, A.J., Wang, X.C., Cui, C.X., Weiss, R.G., (2000) Macromolecules, 33, pp. 7801-7811
dc.descriptionRamesh, V., Weiss, R.G., (1986) Macromolecules, 19, pp. 1486-1489
dc.descriptionCui, C., Naciri, J., He, Z., Jenkins, R.M., Lu, L., Ramesh, V., Hammond, G.S., Weiss, R.G., (1993) Quim. Nova, 16, pp. 578-585
dc.descriptionCui, C., Weiss, R.G., (1993) J. Am. Chem. Soc., 115, pp. 9820-9821
dc.descriptionTung, C.-H., Yuan, Z.-Y., Wu, L.-Z., Weiss, R.G., (1999) J. Org. Chem., 64, pp. 5156-5161
dc.descriptionGu, W., Warrier, M., Ramamurthy, V., Weiss, R.G., (1999) J. Am. Chem. Soc., 121, pp. 9467-9468
dc.descriptionGu, W., Warrier, M., Schoon, B., Ramamurthy, V., Weiss, R.G., (2000) Langmuir, 16, pp. 6977-6981
dc.descriptionGu, W., Weiss, R.G., (2001) J. Org. Chem., 66, pp. 1775-1780
dc.descriptionKobayashi, K., (1963) Polymer Single Crystals, p. 473. , Geli, P. H., Ed
dc.descriptionWiley: New York
dc.descriptionPeterlin, A., (1965) J. Polym. Sci. Part C, 9, pp. 61-89
dc.descriptionPeterlin, A., (1971) J. Mater. Sci., 6, pp. 490-508
dc.descriptionWunderlich, B., (1974) Macromolecular Physics, 1. , Academic Press: New York
dc.descriptionPerrin, D.D., Amarego, W.L.F., (1988) Purification of Laboratory Chemicals, 3rd Ed., p. 267. , Pergamon Press: New York
dc.descriptionPerkampus, H.-H., (1992) UV-Vis Atlas of Organic Compounds, 2nd Ed., (PART 2). , VCH: New York
dc.descriptionnoteAtvars, T.D.Z., Talhavini, M., (1995) Quim. Nova, 18, pp. 298-300
dc.descriptionGrams/32 software from Galactic Industries CorpSperling, L.H., (2001) Introduction to Physical Polymer Science, 3rd Ed., , Wiley: New York
dc.descriptionChapter 6
dc.descriptionFrank, F.C., Keller, A., O'Connor, A., (1958) Philos. Mag., 8, pp. 64-74
dc.descriptionHayashida, T., (1962) J. Phys. Soc. Jpn., 17, pp. 306-315
dc.descriptionGray, A.P., (1970) Thermochim. Acta, 1, pp. 563-579
dc.descriptionChalla, G., Hermans, P.H., Weidinger, A., (1962) Makromol. Chem., 56, pp. 169-178. , and references therein
dc.descriptionGreenfield, M.L., Theodorou, D.N., (1993) Macromolecules, 26, pp. 5461-5472
dc.descriptionCalleja, F.J.B., Serna, J., Vicente, J., Segovia, M.A., (1985) J. Appl. Phys., 58, pp. 253-259
dc.descriptionSuzuki, T., Oki, Y., Numajiri, M., Miura, T., Kondo, K., Ito, Y., (1992) J. Polym. Sci., Polym. Phys., 30, pp. 517-525
dc.descriptionAche, H.J., (1979) Positronium and Muonium Chemistry, , Gould, R. F., Ed.
dc.descriptionAmerican Chemical Society: Washington, DC
dc.descriptionChapter 1
dc.descriptionBrandt, W., Berko, S., Walker, W.W., (1960) Phys. Rev., 120, pp. 1289-1295
dc.descriptionEldrup, M., Lightbody, M., Sherwood, J.N., (1981) Chem. Phys., 63, pp. 51-58
dc.descriptionTao, S.J., (1972) J. Chem. Phys., 56, pp. 5499-5510
dc.descriptionNakanishi, H., Wang, S.J., Jean, Y.C., (1998) Positron Annihilation Studies of Fluids, p. 292. , Sharma, S. C., Ed.
dc.descriptionWorld Science: Singapore
dc.descriptionHill, A.J., (2003) Polymer Characterization Techniques and their Application to Blends, , Simon, P. S., Ed.
dc.descriptionOxford Press: Washington
dc.descriptionChapter 14
dc.descriptionForsyth, M., Meakin, P., MacFarlane, D.R., Hill, A.J., (1995) J. Phys.: Condens. Matter, 7, pp. 7601-7617
dc.descriptionBoyer, R.F., (1973) Macromolecules, 6, pp. 288-299
dc.descriptionnoteKonwerska-Hrabowska, J., Chantry, G.W., Nicol, E.A., (1981) Int. J. Infrared Millimeter Waves, 2, pp. 1135-1149
dc.descriptionJang, Y.T., Phillips, P.J., Thulstrup, E.W., (1982) Chem. Phys. Lett., 93, pp. 66-79
dc.descriptionLakowicz, J.R., (1999) Principles of Fluorescence Spectroscopy, p. 11. , Kluwer Academic: New York
dc.descriptionWeiss, R.G., Ramamurthy, V., Hammond, G.S., (1993) Acc. Chem. Res., 26, pp. 530-536
dc.descriptionCrank, J., (1956) The Mathematics of Diffusion, p. 45. , Oxford: London
dc.descriptionComyn, J., (1985) Polymer Permeability, , Elsevier: London
dc.descriptionChapter 1
dc.descriptionSchurr, O., Yamaki, S.B., Wang, C., Atvars, T.D.Z., Weiss, R.G., (2003) Macromolecules, 36, pp. 3485-3497
dc.descriptionThulstrup, E.W., Michl, J., (1980) J. Phys. Chem., 84, pp. 82-93
dc.descriptionKonwerska-Hrabowska, J., (1985) Appl. Spectrosc., 39, pp. 976-979
dc.descriptionTirelli, N., Amabile, S., Cellai, C., Pucci, A., Regoli, L., Ruggeri, G., Ciardelli, F., (2001) Macromolecules, 34, pp. 2129-2137
dc.descriptionnoteSteenstrup, F.R., Christensen, K., Svane, C., Thulstrup, E.W., (1997) J. Mol. Struct., 408, pp. 139-148
dc.descriptionLangkilde, F.W., Gisin, M., Thulstrup, E.W., Michl, J., (1983) J. Phys. Chem., 87, pp. 2901-2911
dc.descriptionMichl, J., Thulstrup, E.W., (1980) J. Chem. Phys., 72, pp. 3999-4008
dc.descriptionWang, C., Xu, J., Weiss, R.G., (2003) J. Phys. Chem. B, 107, pp. 7015-7025
dc.descriptionCamerman, A., Trotter, J., (1965) Acta Crystallogr., 18, pp. 636-643
dc.languageen
dc.publisher
dc.relationJournal of the American Chemical Society
dc.rightsfechado
dc.sourceScopus
dc.titleDetermination Of Initial And Long-term Microstructure Changes In Ultrahigh Molecular Weight Polyethylene Induced By Drawing Neat And Pyrenyl Modified Films
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución