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Lecture Cynthia Linaya Radiman


24 May 2012 FWN-Building 5118.-152, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. Ing. Cynthia Linaya Radiman
Affiliation: Inorganic and Physical Chemistry Division
Faculty of Mathematics and Natural Sciences
Institut Teknologi Bandung
Title: Natural polymers and their uses in diverse applications
Date: Thu May 24, 2012
Start: 15.30
Location: FWN-Building 5118.-152
Host: Katja Loos
Telephone: +31 50 363 6867


Indonesia is a rich in natural resources such as cellulose and chitin. Cellulose is obtained from various types of hardwoods and non-woods, while chitin was taken from the shrimp shell waste. In addition, coconut water can also be fermented by Acetobacter xylinum to produce bacterial cellulose or nata-de-coco.  The objective of our research activities is to explore the riches of our natural resources and to improve their properties by chemical modification. The use of  the resulting products are limited to certain applications, namely pressure-driven membrane processes,  fuel cell applications and Enhanced Oil Recovery (EOR). Hardwoods and softwoods as well as nata-de-coco are used as the basic materials for preparing cellulose acetate membranes suitable for microfiltration processes. Modification of chitin to chitosan and its graft-copolymerization with acrylamide are carried out to produce polymers for EOR, while phosphorylation of nata-de-coco and chitosan produces polymer electrolyte membranes for Direct Methanol Fuel Cell applications. The details of the synthesis and characterization of those polymers will be described more in detail in the presentation.

Last modified:22 October 2012 2.31 p.m.