𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Anionic polymerization of 6-caprolactam—LVIII. The relative rates of elementary reactions in the activated anionic polymerization of ϵ-caprolactam in tetrahydrofuran

✍ Scribed by J. Stehlíček; T. Šebenda


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
463 KB
Volume
22
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis


In the reaction between the potassium salt of E-caprolactam and N-propionyl-e-caprolactam or N-benzoyl-~-caprolactam in tetrahydrofuran at 25;, the consumption of both reactants and the formation of structures giving ketones by hydrolysis were investigated. Analysis of the data allowed determination of the relative rates of polymerization, of the acylation of amide groups of a linear monomer unit and of the condensation of diacylamino groups.


📜 SIMILAR VOLUMES


Block copolymers of ϵ-caprolactam and ox
✍ J. Stehlíček; J. Šebenda 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 427 KB

A~tract--Block copolymers polycaprolactam-polyoxyethylene-polycaprolactam were prepared by anionic polymerization of caprolactam activated with ~,~o-dicarbonylcaprolactam-polyoxyethylenes and characterized by the content of the polyether component, crystallinity of the polyamide component and sorpti

Polymerization of lactams, 92. Non-activ
✍ Jiří Havlice; Jiří Broz�ek; Monika Šáchová; Václava Nováková; Jan Roda 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB 👁 1 views

The non-activated polymerization of e-caprolactam initiated with the sodium salt of e-caprolactam (CLNa), which was prepared in situ with sodium methoxide, was studied in the temperature range 170 -230 8C and at CLNa concentrations from 0.20 to 1.0 mol-%, and at 190 8C in the presence of 2.0 -10.0 m

Anionic polymerization of ϵ-caprolactam—
✍ J. Stehlíček; J. Šebenda 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 465 KB

Interactions between potassium salts of lactams and N-acyllactam propagation centres in the initial stage of the anionic polymerization of lactams were studied by measuring changes in the electric conductivity and in the i.r. spectrum in the range of carbonyl vibration bands of these compounds and o

Adiabatic anionic polymerization of capr
✍ Jen-Long Yeh; Jen-Feng Kuo; Chuh-Yung Chen 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 672 KB

## NOPSlS In this study, bis t-caprolactam bis-diphenyl methane diisocyanate polypropylene glycol 1000 used as the macroactivator was prepared and well characterized prior to use. The anionic polymerization of e-caprolactam with the macroactivator as a function of the macroactivator concentration