Article (Scientific journals)
Variability in the substitution pattern of hydroxypropyl cellulose affects its physico-chemical properties
Cremer, Gilles; Danthine, Sabine; Van Hoed, Vera et al.
2023In Heliyon, p. 13604
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Keywords :
hydroxypropyl cellulose; cellulose ether; substitution pattern; structure-function
Abstract :
[en] Hydroxypropyl cellulose (HPC) is a water-soluble polymer with many applications in food, pharmaceutical, medical, or paints industries. Past studies have reported that differences in functionality can occur between products of similar pharmaceutical grades. Understanding the origin of these differences is a major challenge for the industry. In this work, the structure and physico-chemical properties of several HPC samples of the same commercial grade were studied. Structural analysis by NMR and enzymatic hydrolysis were performed to study molar substitution and distribution of substituents along the polymer chain respectively. Water-polymer interactions, surface properties as well as rheological and thermal behavior were characterized to tentatively correlate them with the structure, and gain new insights into the structure-function relationship of this polymer. The differences in structure revealed between the samples affect their properties. The unexpected behavior of one sample was attributed to a more heterogeneous substitution pattern, with the coexistence of highly and weakly substituted regions along the same polymer chain. The more block-like distribution of substituents has a great effect on the clouding behavior and surface tension reduction ability of the polymer.
Research center :
SMARTECH - Smart Technologies for Food and Biobased Products - ULiège
Puratos NV
Disciplines :
Chemistry
Author, co-author :
Cremer, Gilles  ;  Université de Liège - ULiège > Département GxABT > Smart Technologies for Food and Biobased Products (SMARTECH)
Danthine, Sabine  ;  Université de Liège - ULiège > TERRA Research Centre > Smart Technologies for Food and Biobased Products (SMARTECH)
Van Hoed, Vera;  Puratos NV
Dombree, Anne;  Puratos NV
Laveaux, Anne-Sophie;  Puratos NV
Damblon, Christian  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie biologique structurale
Karoui, Romdhane ;  Univ. Artois, Univ. Lille, Univ. Littoral Côte D'Opale, Univ. Picardie Jules Verne, Univ. de Liège, INRAE, Junia, UMR-T 1158, BioEcoAgro, F-62300 Lens, France
Blecker, Christophe ;  Université de Liège - ULiège > TERRA Research Centre > Smart Technologies for Food and Biobased Products (SMARTECH)
Language :
English
Title :
Variability in the substitution pattern of hydroxypropyl cellulose affects its physico-chemical properties
Alternative titles :
[fr] La variabilité du profil de substitution de l'hydroxypropylcellulose affecte ses propriétés physico-chimiques
Publication date :
06 February 2023
Journal title :
Heliyon
eISSN :
2405-8440
Publisher :
Elsevier BV
Pages :
e13604
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 February 2023

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