Abstract
Cellulose acetate-based polycaprolactones (CAPCL's) were synthesized by the polymerization of ε-caprolactone which was initiated by non-substituted OH group in cellulose acetate. The CL/OH (mol mol−1) ratios of the CAPCL's were changed from 2 to 20. Thermal and viscoelastic properties of the CAPCL sheets were studied by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). Glass transition, cold crystallization and melting were determined by DSC. Dynamic modules (E'), dynamic loss modules (E'') and tanδ were measured in a temperature range from −150 to 50°C by DMA. Apparent activation energy of a dispersion was calculated from the frequency dependency of E'' peak temperature. It was found that the main chain motion of both CA and PCL is observed in a CL/OH ratio from 0 to 10 mol mol−1. However, when CL/OH ratio exceeds 10 mol mol−1, the crystalline region which is rearranged by the PCL chain association is observed and only the main chain motion of PCL can be detected.
Similar content being viewed by others
References
K. Nakamura, T. Hatakeyama and H. Hatakeyama, Polym. Adv. Technol., 3 (1992) 151.
K. Nakamura, Y. Nishimura, T. Hatakeyama and H. Hatakeyama, Proceedings for International Workshop on Environmentally Compatible Materials and Recycling Technology in Tsukuba, Japan, November 15–16 (1993), p. 239.
H. Hatakeyama, S. Hirose, K. Nakamura and T. Hatakeyama, in Cellulosics: Chemical, Biochemical and Material Aspects, J. F. Kennedy, G. O. Phillips and P. A. Williams, Eds., Ellis Horwood, 1993 p. 381.
H. Yoshida, K. Kobashigawa, S. Hirose and H. Hatakeyama, Workshop on Environmentally Compatible Materials and Recycling Technology in Tsukuba, Japan, November (1993), p. 15.
M. J. Donnely, Polymer International, 37 (1995) 297.
N. Morohoshi, S. Hirose, H. Hatakeyama, T. Tokashiki and K. Teruya, Sen-i Gakkaishi, 51 (1995) 143.
K. Nakamura, Y. Nishimura, P. Zetterlund, T. Hatakeyama and H. Hatakeyama, Thermochim. Acta, 43 (1996) 282.
P. Zetterlund, S. Hirose, T. Hatakeyama, H. Hatakeyama and A.-C. Albertsson, Polym. Int., 42 (1997) 883.
H. Hatakeyama, Y. Izuta, K. Kobashigawa, S. Hirose and T. Hatakeyama, Macromol. Symp., 130 (1998) 127.
T. Hatakeyama, T. Tokashiki and H. Hatakeyama, Macromol. Symp., 130 (1998) 139.
C. Miola, T. Hamaide and R. Spitz, Polym., 38 (1977) 5667.
C. de Kese, C. V. Wauven and C. David, Polym. Degrad. Stabil., 55 (1997) 107.
S. Slomkowski, Macromol. Symp., 103 (1996) 213.
T. Hatakeyama and F. X. Quinn, Thermal Analysis, John Wiley & Sons, Chichester 1994, p. 65.
T. Yoshida, H. Hatakeyama, S. Hirose and T. Hatakeyema, Proceedings for Cellulon'99, Tsukuba, Japan, March (1999).
K. Kamide and M. Sato, Polym. J., 17 (1985) 919.
C. G. Pitt, Biodegradable Polymers and Drug Delivery Systems, Eds. M. Chasin, R. Langer, Marcel Dekker Inc. New York 1990, chp. 3, p. 81.
C. G. Pitt, F. I. Chasalow, Y. M. Hibionada, D. M. Klimas and A. Schindler, J. Appl. Polym. Sci., 26 (1981) 3779.
T. Hatakeyama, K. Nakamura and H. Hatakeyama, Polym., 23 (1982) 1801.
E. T. Samulski, in Physical Properties of Polymers, Am. Chem. Soc. (1993) Chap. 5.
E. J. Coles and R. Simon, (ed. A. Blumstein), Polymeric Liquid Crystals, Plenum, New York 1983, p. 351
T. Hatakeyama and Z. Liu, in Handbook of Thermal Analysis, John Wiley, Chichester 1998, p. 89.
S. Ichihara, Netsu Sokutei no Shinpo, 4 (1986).
T. Hatakeyama and H. Hatakeyama, Thermochim. Acta (in press).
T. Hatakeyama and Z. Liu, in Handbook of Thermal Analysis, John Wiley, Chichester 1998, p. 206-210.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hatakeyama, H., Yoshida, T. & Hatakeyama, T. The Effect of Side Chain Association on Thermal and Viscoelastic Properties: Cellulose acetate based polycaprolactones. Journal of Thermal Analysis and Calorimetry 59, 157–168 (2000). https://doi.org/10.1023/A:1010140129888
Issue Date:
DOI: https://doi.org/10.1023/A:1010140129888