Thanks to the study of model compounds, we have been able to determine the origin of three rheological transitions observed in the thermomechanical analysis of a crosslinked nadimide resin, in the thermal range (-150 °C–-400 °C). The first one, localized at about 300 °C, is attributable to the glass transition of the crosslinked compound. The two others (called γ and β) are respectively situated at -100 °C and 70 °C. They are due to localized motions of rigid segments comprising aromatic structures and imide rings.
Get full access to this article
View all access options for this article.
References
1.
[1] Habas J P, Peyrelasse J and Grenier-Loustalot M FHigh Perform. Polym.8579–579
2.
[2] Laupêtre F1990GFP Collection9III51–80
3.
[3] Pater R H1988Rapport880152–880152 (NASA Langley Research Center, VA)
4.
[4] Pater R H1991Polym. Composites12133–133
5.
[5] Pater R H1991Polym. Eng. Sci.3120–20
6.
[6] Fukami A, Iisaka K, Kubota S and Etoh S1991J. Appl. Polym. Sci.423065–3065
7.
[7] Takeichi T, Date H and Takayama Y1990J. Polym. Sci, Part A, Polym. Chem.283377–3377
8.
[8] Sun Z, Dong L, Zhuang Y, Cao L, Ding M and Feng Z1992Polymer334728–4728
9.
[9] Arnold F E, Katie J R, Bruno R, Shen D and Eashoo M1993Polym. Eng. Sci.331373–1373
10.
[10] Gotlib Y Y and Kozlovich N N1990Polym. Sci. USSR321340–1340
11.
[11] Spiess H W1985Integration of Fundamental Polymer Science & Technology pp 304–307
12.
[12] Ferry J D1969Viscoelastic Properties of Polymers2nd edn (New York: Wiley) pp 480–482
13.
[13] Aitken C L, McHattie J S and Paul D R1992Macromolecules252910–2910
14.
[14] Fried J R, Letton A and Welsh W J1990Polymer311032–1032
15.
[15] Semakov A V, Kantor G Y, Vasil’Yeya O V and Dobrosol I I1991Polym. Sci. USSR33160–160
16.
[16] Xiao C and Yee A F1992Macromolecules256800–6800
17.
[17] Floudas G, Higgins J S, Meier G, Kremer F and Fischer E W1992Macromolecules261676–1676
18.
[18] Jho J Y and Yee A F1991Macromolecules241905–1905
19.
[19] Adams R D and Gaitonde J M1993Composites Sci. Technol.47271–271
20.
[20] Shut N I, Bartenev G M, Lazorenko M V and Sichkar T G1991Acta Polym.42384–384
21.
[21] Benavente R, Perena J M, Perez E and Bello A1993Polymer342344–2344
22.
[22] Baccaredda M, Butta E, Frosini V and de Petris S1967J. Polym. Sci. A-251296–1296
23.
[23] Lim T, Frosini V, Zaleckas V, Morrow D and Sauer J A1973Polym. Eng. Sci.1351–51
24.
[24] Kurz J E, Woodbrey J C and Ohta M1970J. Polym. Sci. A-281169–1169
25.
[25] Ikeda R M1966J. Polym. Sci. Polym. Lett. Ed.4353–353
