(PDF) The effect of amines on the dehydrochlorination of poly …
1988年3月1日 · However, PVC undergoes dehydrochlorination reactions of its polymer chains when it is in contact with aliphatic and aromatic amines, that may accelerate aging and downgrade the material...
Reaction scheme showing mechanisms of amination and …
PVC is treated with ethylenediamine (EDA) for amine grafting since it is a reactive amine for substitution and efficie...
Aminated poly(vinyl chloride) solid state adsorbents with …
In this work, we report for the first time the synthesis of a family of high surface area composite materials that contain amine-functionalized PVC as the source of basic sites for CO 2 adsorption. The proposed synthesis is based on a relatively simple one-step reaction making the protocol potentially scalable for the development of advanced ...
Upcycling of polyvinyl chloride to hydrocarbon waxes via …
2023年12月5日 · In this work, PVC was selectively converted to wax-like hydrocarbons. This process proceeds in a series reaction, wherein PVC is hydrodechlorinated by an amine base, and the resulting polyene undergoes hydrogenation over a heterogeneous Pt/C catalyst.
The interaction of polyvinyl chloride with aromatic amines
This paper presents a study of the reaction of PVC with the aromatic amines p-toluidine, aniline and diphenylamine. Aromatic amines react with 1)VC only at temperatures above 100becaus~ their basicity is lower than that of aliphatic amines.
nucleophilic substitution of PVC chlorine atoms is achieved by chlorosulfonation in para-position of the aromatic ring and reduction of the chlorosulfonyl group using sodium borhydride. This compound is used to modify PVC bearing a protected primary amine. The free amine is obtained after deprotection of the phthalimide moiety using hydrazine. On
Chemical modification of poly (vinyl chloride) resin using poly ...
2005年6月1日 · Poly (vinyl chloride) (PVC) was aminated by treating the resin with a concentrated aqueous solution of ethylenediamine. The aminated PVC was then reacted with hexamethylene diisocyanate to incorporate the isocyanate group onto the polymer backbone. The isocyanated PVC was further reacted with poly (ethylene glycol) (PEG) of molecular weight 600 Da.
The effect of amines on the dehydrochlorination of poly(vinyl …
A study has been made of the effect of amines, particularly those used as catalysts in the preparation of polyurethane foams, on the dehydrochlorination of poly (vinyl chloride) (PVC). It has been shown that when PVC is heated at a temperature of 80°C in the presence of amines the levels of dehydrochlorination produced are considerably greater ...
PVC bearing primary aliphatic or aromatic amine groups
2016年11月23日 · In this work we describe the preparation of an aromatic thiol substituted with a protected aliphatic primary amine that can be easily deprotected once the substitution reaction on the PVC chains has taken place.
Abstract: The aim of this work was to study the structural and electrical properties of a new polymer obtained by functionalization of a commercial poly (vinyl chloride) (PVC) (Mw = 48000) by 1-chloro-2-phenylaminomethyl-6-phenylaminomethylene-cyclohex-1-ene groups and to evaluate the efficiency of two new polymers obtained by functionalization ...