von Mohammad Reza Sarbandi
Statistik und Sichtungsnachweis dieser Seite findet sich am Artikelende
| [1.] Mrs/Fragment 048 26 - Diskussion Zuletzt bearbeitet: 2015-04-19 18:50:51 WiseWoman | Fornes 2003, Fragment, Gesichtet, Mrs, SMWFragment, Schutzlevel sysop, Verschleierung |
|
|
|
| Untersuchte Arbeit: Seite: 48, Zeilen: 26-34 |
Quelle: Fornes 2003 Seite(n): 252, 254, Zeilen: 252: 13 ff.; 254: 1 ff. |
|---|---|
| Some characteristic properties of the α- and γ-forms of polyamide 6 are listed in Table 4.1 [173- 187]. The heats of fusion, ΔHf°, are the values reported by Illers [184]. It should be noted that other values for the α-form have been reported in the literature [180, 184, 186, 188-191] and Wunderlich has suggested a value of 230 J/g based on a compromise of various reports in the literature [192]. The effect of crystallization temperature and time on the formation of the α- versus γ-forms has been widely studied [185, 193, 194]. Gurato and his coworkers have shown that crystallization for extended periods of time below ~130 °C leads only to the γ-crystallites while above ~190 °C only the α-form is produced. Temperatures in between these limits result in a mixture of the two forms, with higher fractions of α-form being [produced at higher temperatures.]
[173] S.M: Aharoni, n-Polyamides [sic], their synthesis, structure, and properties. Chichester; New York: Wiley; 1997. [174] Arimoto H, Ishibashi M, Hirai M, Chatani Y. Journal of Polymer Science Partt A 1965; 3(1):317–26. [175] D.R. Holmes, C.W. Bunn, D.J. Smith, Journal of Polymer Science 1955;17:159–77. [176] N. Murthy, Polymer Communications 1991;32(10):301–5. [177] F. Rybnikar, Burda J. Faserforsch u Textiltech 1961;12:324–31. [178] L.G. Roldan, H.S. Kaufman, Polymer Letter 1960;1:603–8. [179] T. Itoh, H. Miyaji, K. Asai, Japanese Journal of Applied Physics 1975;14(2):206–15. [180] A. Reichle, A. Prietzschk, Angew Chem 1962;74:562–9. [181] L.G. Wallner, Monatsh 1948;79:279–95. [182] K.H. Illers, H. Haberkorn, P. Simak, Makromolekulare Chemie1972;158: 285–311. [183] K.H. Illers, Makromolekulare Chemie 1978;179(2):497–507. [184] K.H. Illers, H. Haberkorn, Makromolekulare Chemie 1971;142:31–67. [185] S. Gogolewski, M. Gasiorek, K. Czerniawska, A. Pennings. Colloid and Polymer Science 1982; 260(9):859–63. [186] D.C. Vogelsong, J Polymer Science 1963; 1(Pt. A):1055–68. [187] P. Marx, C. Smith, A. Worthington, M. Dole, Journal of Physical Chemistry; 59: 1015–9. [188] M. Dole, B. Wunderlich, Makromolekulare Chemie 1959;34:29–49. [189] M. Inoue, J Polymer Science Part A 1963; 1:2013–20. [190] J.R. Starkweather, P. Zoller, G.A. Jones, J Polymer Science, Polymer Physics Edition 1984; 22(9):1615–21. [191] B. Wunderlich, Macromolecular physics, vol. 3. New York: Academic Press; 1973. [192] G. Gurato, A. Fichera, F.Z. Grandi, R. Zannetti, P. Canal, Makromolekulare Chemie 1974;175(3):953–75. [193] M. Kyotani, S. Mitsuhashi, J Polymer Science, Part A-2 1972; 10(8): 1497–508. [194] R.J. [sic] Brill für Praktische Chemie 1942;161:49–64. |
Table 9.1 lists characteristic properties of the α- and γ-forms of nylon 6 [6-20]. The heats of fusion, ΔHf°, are the values reported by Illers [17]. It should be noted that other values for the α-form have been reported in the literature [13, 17, 19, 21-25] and Wunderlich has suggested a value of 230 J/g based on a compromise of various reports in the literature [26].
[...] The effect of crystallization temperature and time on the formation of the α versus γ-forms has been widely studied. For example, three independent investigations [18, 27, 28], have shown that crystallization for extend periods of [page 254] time below ~130°C leads solely to the γ-crystallites while above ~190°C only the α-form is produced. Temperatures in between these limits result in a mixture of the two forms, with higher fractions of α produced at higher temperatures. [...] [29] 6. Aharoni, SM, n-Nylons, their synthesis, structure, and properties. New York: J. Wiley & Sons. 1997. 7. Arimoto, H, Ishibashi, M, Hirai, M, Chatani, Y. J Polymer Sci, Part A 1965;3(1): 317-26. 8. Holmes, DR, Bunn, CW, Smith, DJ. J Polymer Sci 1955;17: 159-77. 9. Kohen, MI, ed. Nylon plastics handbook. Hanser: New York. 1995. 10. Murthy, NS. Polym Commun 1991;32(10): 301-5. 11. Rybnikar, F, Burda, J. Faserforsch u Textiltech 1961;12: 324-31. 12. Roldan, LG, Kaufman, HS. Polym Letts 1960;1: 603-8. 13. Itoh, T, Miyaji, H, Asai, K. Jpn J Appl Phys 1975;14(2): 206-15. 14. Reichle, A, Prietzschk, A. Angew Chem 1962;74: 562-9. 15. Wallner, LG. Monatsh 1948;79: 279-95. 16. Illers, KH, Haberkorn, H, Simak, P. Makromol Chem 1972;158: 285-311. 17. Illers, KH. Makromol Chem 1978;179(2): 497-507. 18. Illers, KH, Haberkorn, H. Makromol Chem 1971;142: 31-67. 19. Gogolewski, S, Gasiorek, M, Czerniawska, K, Pennings, AJ. Colloid Polym Sci 1982;260(9): 859-63. 20. Vogelsong, DC. J Polym Sci 1963;1(Pt. A): 1055-68. 21. Rybnikar, F. Chem listy 1958;52: 1042-8. 22. Marx, P, Smith, CW, Worthington, AE, Dole, M. J Phys Chem 1955;59: 1015-9. 23. Dole, M, Wunderlich, B. Makromol Chem 1959;34: 29-49. 24. Inoue, M. J Polymer Sci Pt A 1963;1: 2013-20. 25. Starkweather, HW, Jr., Zoller, P, Jones, GA. J Polym Sci, Part B 1984;22(9): 1615-21. 26. Wunderlich, B, Macromolecular physics (vol 3). New York: Academic Press. 1973. 27. Gurato, G, Fichera, A, Grandi, FZ, Zannetti, R, Canal, P. Makromol Chem 1974;175(3): 953-75. 28. Kyotani, M, Mitsuhashi, S. J Polym Sci, Part A-2 1972;10(8): 1497-508. 29. Brill, R. J prakt Chem 1942;161: 49-64. |
The source is not mentioned. Note that most references are -- compared to the source -- moved by one. |
|
Letzte Bearbeitung dieser Seite: durch Benutzer:WiseWoman, Zeitstempel: 20150419185146