Abstract
In this study, bis ϵ‐caprolactam bis‐diphenyl methane diisocyanate polypropylene glycol 1000 used as the macroactivator was prepared and well characterized prior to use. The anionic polymerization of ϵ‐caprolactam with the macroactivator as a function of the macroactivator concentration was adiabatically carried out. The adiabatic temperature rise method as well as the macrokinetics were used for elucidation of the kinetics of the polymerization. A nonlinear regression technique was used for determining the parameters of the macrokinetic equation. The equilibrium conversion and equilibrium time obtained were 94–96% and 2–9 min depending on the macroactivator concentration. The effects of the concentrations of macroactivator and ϵ‐caprolactam on the initial rate, apparent overall reaction rate, and the empirical parameters were studied. A side reaction induced by the transfer of the proton in the isocyanurate group of the macroactivator to caprolactam anion was found. According to this finding, a new reaction kinetic model was proposed by properly modifying the macrokinetic equation. © 1993 John Wiley & Sons, Inc.
| Original language | English |
|---|---|
| Pages (from-to) | 1671-1681 |
| Number of pages | 11 |
| Journal | Journal of Applied Polymer Science |
| Volume | 50 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1993 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry
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Adiabatic anionic polymerization of caprolactam in the presence of N‐acylated caprolactam macroactivator : Kinetic study. / Yeh, Jen‐Long ‐L; Kuo, Jen‐Feng ‐F; Chen, Chuh-Yung.
In: Journal of Applied Polymer Science, Vol. 50, No. 10, 01.01.1993, p. 1671-1681.Research output: Contribution to journal › Article
TY - JOUR
T1 - Adiabatic anionic polymerization of caprolactam in the presence of N‐acylated caprolactam macroactivator
T2 - Kinetic study
AU - Yeh, Jen‐Long ‐L
AU - Kuo, Jen‐Feng ‐F
AU - Chen, Chuh-Yung
PY - 1993/1/1
Y1 - 1993/1/1
N2 - In this study, bis ϵ‐caprolactam bis‐diphenyl methane diisocyanate polypropylene glycol 1000 used as the macroactivator was prepared and well characterized prior to use. The anionic polymerization of ϵ‐caprolactam with the macroactivator as a function of the macroactivator concentration was adiabatically carried out. The adiabatic temperature rise method as well as the macrokinetics were used for elucidation of the kinetics of the polymerization. A nonlinear regression technique was used for determining the parameters of the macrokinetic equation. The equilibrium conversion and equilibrium time obtained were 94–96% and 2–9 min depending on the macroactivator concentration. The effects of the concentrations of macroactivator and ϵ‐caprolactam on the initial rate, apparent overall reaction rate, and the empirical parameters were studied. A side reaction induced by the transfer of the proton in the isocyanurate group of the macroactivator to caprolactam anion was found. According to this finding, a new reaction kinetic model was proposed by properly modifying the macrokinetic equation. © 1993 John Wiley & Sons, Inc.
AB - In this study, bis ϵ‐caprolactam bis‐diphenyl methane diisocyanate polypropylene glycol 1000 used as the macroactivator was prepared and well characterized prior to use. The anionic polymerization of ϵ‐caprolactam with the macroactivator as a function of the macroactivator concentration was adiabatically carried out. The adiabatic temperature rise method as well as the macrokinetics were used for elucidation of the kinetics of the polymerization. A nonlinear regression technique was used for determining the parameters of the macrokinetic equation. The equilibrium conversion and equilibrium time obtained were 94–96% and 2–9 min depending on the macroactivator concentration. The effects of the concentrations of macroactivator and ϵ‐caprolactam on the initial rate, apparent overall reaction rate, and the empirical parameters were studied. A side reaction induced by the transfer of the proton in the isocyanurate group of the macroactivator to caprolactam anion was found. According to this finding, a new reaction kinetic model was proposed by properly modifying the macrokinetic equation. © 1993 John Wiley & Sons, Inc.
UR - http://www.scopus.com/inward/record.url?scp=0027810901&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027810901&partnerID=8YFLogxK
U2 - 10.1002/app.1993.070501001
DO - 10.1002/app.1993.070501001
M3 - Article
AN - SCOPUS:0027810901
VL - 50
SP - 1671
EP - 1681
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 10
ER -