Kinetics of the solid‐state polymerization of nylon‐6

Wiley - Tập 84 Số 3 - Trang 616-621 - 2002
Jian‐Jun Xie1
1Institute of Polymer Science and Engineering, Xiangtan University, Hunan, 411105, People's Republic of China

Tóm tắt

AbstractThe kinetics of the thermally induced solid‐state polymerization (SSP) of nylon‐6 were examined in both a fixed‐bed reactor and a rotary reactor. Factors such as the regulator content, the reaction temperature and time, the particle size, the type and geometry of the nylon‐6 prepolymer, the nitrogen gas flow rate, the water content of the nitrogen gas flow, and the polymerization process were studied. The results showed that the regulator content, the reaction temperature and time, and the particle size were the primary factors, and that the others were negligible. Moreover, the SSP rate and number‐average molecular weight (Mn) increased with increasing reaction temperature and time and decreasing particle size. The SSP rate and Mn had maximum values with increasing regulator content in an experimental range of 0.03–0.07 wt %. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 616–621, 2002; DOI 10.1002/app.10341

Từ khóa


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Wiley

Tập 84 Số 3

616-621

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