Język Polski
English
Published
: 2012-10-30
Polyamide 6 modified with silsesquioxane prepared via anionic polymerization of e-caprolactam
Abstract
The anionic polymerization of e-caprolactam containing the dispersed silsesquioxane (0.1 or 0.5 % by weight) was carried out. The study of reaction kinetics (Fig. 1 and 2, Table 1) and degree of monomer conversion (Fig. 3) based on the temperature measurements indicated a slowdown in the polymerization process at 0.5 wt.% silsesquioxane content in the reaction mixture. An investigation of the kinetics of crystallization led to the conclusion that an addition of silsesquioxane resulted in a decrease in the crystallization rate (Fig. 1 and 2, Table 1) and crystallization degree (DSC results, Table 2) of polyamide 6. The glass transition temperature (Tg) of PA 6 and its composites was determined using DMTA measurements (Fig. 6, Table 3). It was shown that the values of storage modulus (E') of the composites in the temperature range between 0 and 90 °C were higher as compared to the modulus of neat polyamide 6 (Fig. 7). It was also observed that with an increase of the silsesquioxane content in the PA 6 composite, a decrease in the casting shrinkage (Fig. 4) is observed along with an increase in the water sorption (Fig. 5).
Details
References
Statistics
Authors
Zasady cytowania
Kelar, K., Mencel, K., Sterzyński, T., Dutkiewicz, M., & Maciejewski, H. (2012). Polyamide 6 modified with silsesquioxane prepared via anionic polymerization of e-caprolactam. Polimery, 57(10), 697–704. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/865
