Titre :

Exploiting poly(?-caprolactone) grafted from hydrohydroxymethylated sunflower oil as biodegradable coating material of water-soluble fertilizers

Auteur(s) :

El Mouat, Abdelghani [Auteur]
Laboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
UCCS Équipe Catalyse Supramoléculaire [CASU]
El Assimi, Taha [Auteur]
Laboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
Raihane, Mustapha [Auteur]
Laboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
Ternel, Jeremy [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Beicout, Hervé [Auteur]
UCCS Équipe Catalyse Supramoléculaire [CASU]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Tilloy, Sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lahcini, Mohammed [Auteur]
Université Mohammed VI Polytechnique = Mohammed VI Polytechnic University [Ben Guerir] [UM6P]
Laboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]

Titre de la revue :

Progress in Organic Coatings

Nom court de la revue :

Prog. Org. Coat.

Numéro :

179

Pagination :

-

Date de publication :

2023-04-09

ISSN :

0300-9440

Mot(s)-clé(s) :

Slow-release fertilizer
Biobased oil
Grafting form
Polycaprolactone
One-pot process
In-situ polymerization

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

In the present study, hyperbranched poly(ε-caprolactones) were prepared and used as coating materials to prepare slow release diammonium phosphate (DAP) fertilizer. Firstly, the sunflower oil was hydrohydroxymethylated by ...
Lire la suite >In the present study, hyperbranched poly(ε-caprolactones) were prepared and used as coating materials to prepare slow release diammonium phosphate (DAP) fertilizer. Firstly, the sunflower oil was hydrohydroxymethylated by one-pot two-step process using Rh(acac)(CO)2 as catalyst, and triethylamine as ligand. Next, the bio-based hyperbranched poly(ɛ-caprolactone) (PCL) were prepared in open air by in-situ ring-opening polymerization of ε-caprolactone using hydrohydroxymethylated sunflower oil as macro-initiator and tetra(phenylethynyl)tin (Sn(C ≡ CPh)4) as catalyst. The structures of the prepared polymers (SFO-O-g-PCL) were confirmed by nuclear magnetic resonance (1H NMR) and the infrared spectroscopy (FTIR). Furthermore, molecular weight values around 20.000 g.mol−1 of PCL grafted in SFO-O-g-PCL were obtained, the thermal stability and morphology of the coated film were also evaluated using thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) respectively. The hydrophobic character of the films prepared from SFO-O-g-PCL was confirmed by measuring the contact angle of water droplets. In the second part, the DAP granular fertilizers were uniformly coated by the prepared material (SFO-O-g-PCL) using a laboratory rotary drum. Then the slow release performance in water of the coated and uncoated DAP fertilizer granules was evaluated by tracking the cumulative concentration of P2O5 released. Thus, it was found that only 10 % of P2O5 was released after 2 h of essay from the coated DAP compared to a total release of P2O5 from uncoated DAP (conventional fertilizer) during the same period. This finding opens a wide perspective to combine the advantages of hydrophobic polyesters and bio-based oils to produce biodegradable coating agents.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Catalyse et chimie supramoléculaire (CASU)

Date de dépôt :

2023-06-05T08:16:49Z
2023-06-27T12:44:21Z