𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A study of the mechanism of interfacial polyamidation and polyesterification

✍ Scribed by Hodnett, Ernest M. ;Holmer, Donald A.

Publisher
John Wiley and Sons
Year
1962
Weight
375 KB
Volume
58
Category
Article
ISSN
0022-3832

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The interfacial polyamidation reaction between phthaloyl chloride and piperazine and the interfacial polyesterification reaction between phthaloyl chloride and 4,4′‐isopropylidenediphenol were found to be second‐order at 0°C. Studies with C^14^‐labeled phthaloyl chloride and with piperazine in one case and with 4,4′‐isopropylidenediphenol in the other case showed no isotope effect. However, the interfacial monoamidation reaction between carboxy C^14^‐labeled benzoyl chloride and morpholine gave an isotope effect of 0.950. These results are interpreted, and a mechanism is proposed for the interfacial polycondensation reactions.

📜 SIMILAR VOLUMES

Mechanism of interfacial polycondensatio
Mechanism of interfacial polycondensation and the direct synthesis of stable polyamide membranes
✍ Enkelmann, Volker ;Wegner, Gerhard 📂 Article 📅 1976 🏛 Wiley (John Wiley & Sons) ⚖ 710 KB

## Abstract The mechanism of membrane formation by interfacial polycondensation was studied. For the time‐conversion curves the equation was derived (__x′__ = reduced membrane thickness). The membrane morphology was investigated by x‐ray scattering and electron microscopy. It was found that the po

Study of interfacial friction mechanism
Study of interfacial friction mechanism based on the coupled-oscillator model
✍ Ding Lingyun; Huang Ping 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 481 KB

A new coupled-oscillator model, in which the relationship of the lateral force and the normal force are considered, is proposed for the interfacial friction. The Maugis-Dugdal model is used to approximately substitute the Lennard-Jones potential of the interfacial friction in the new model. The mech

The kinetics of thin film polyesterifica
The kinetics of thin film polyesterification
✍ Gregory A. Campbell; Edward F. Elton; Edward G. Bobalek 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 607 KB

## Abstract The goal of this work was to investigate the increase in the rate of polyesterification that takes place as surface‐to‐volume ratio is increased. The polymer used in this reaction was derived from the esterification of adipic acid (hexanedioic acid) and propylene glycol (1,2‐propanediol

Studies on syntheses and properties of n
Studies on syntheses and properties of novel polyamides containing phosphatidylcholine analogous moieties by interfacial polycondensation
✍ Yan-Feng Wang; Tian-Ming Chen; Yu-Jun Li; Masaya Kitamura; Ikuko Sakurai; Tadao 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 394 KB

Polyamides (4a-b and 5a-b) were synthesized from interfacial polycondensation of novel diamine containing phosphatidylcholine analogous moiety, hexamethylene diamine with adipoyl chloride, or sebacoyl chloride in the interface of water and carbon tetrachloride at room temperature. The characterizati