Next Article in Journal
Direct Growth of a Polypyrrole Aerogel on Hollow CuS Hierarchical Microspheres Yields Particles with Excellent Electromagnetic Wave Properties
Previous Article in Journal
Isothermal Crystallization and Rheology Properties of Isotactic Polypropylene/Bacterial Cellulose Composite
Previous Article in Special Issue
Synthesis of Linseed Oil-Based Waterborne Urethane Oil Wood Coatings
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Polymers 2018, 10(11), 1285; https://doi.org/10.3390/polym10111285

Green Processes for Green Products: The Use of Supercritical CO2 as Green Solvent for Compatibilized Polymer Blends

1
Department of Chemistry, Institut Teknologi Bandung, Jalan Ganesha No. 10, Bandung 40132, Indonesia
2
Engineering and Technology Institute Groningen (ENTEG), Chemical Product Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
*
Author to whom correspondence should be addressed.
Received: 25 September 2018 / Revised: 23 October 2018 / Accepted: 26 October 2018 / Published: 19 November 2018
(This article belongs to the Special Issue Bio-Based Resins and Crosslinked Polymers from Renewable Resources)
Full-Text   |   PDF [2154 KB, uploaded 19 November 2018]   |  

Abstract

Polycaprolactone-g-glycidyl methacrylate (PCL-g-GMA), a reactive interfacial agent for PCL-starch blends, is synthesized using supercritical carbon dioxide (scCO2) as reaction medium and relatively high molecular weight PCL (Mw = 50,000). Higher GMA and radical initiator intakes lead to higher functionalization degrees (FD) for PCL-g-GMA samples. A mathematical model is developed to describe the correlation between monomer and initiator intake and FD values. The model shows an excellent R2-value (0.978), which implies a good fit of the experimental data. Comparison of this model with a similar one for the reaction in the melt clearly indicates a better reaction efficiency in scCO2. Furthermore, GPC results show that less degradation occurred for samples made in scCO2. Finally, the use of the PCL-g-GMA made in scCO2 (as interfacial agent) in ternary blend of PCL/starch/PCL-g-GMA results in better mechanical properties with respect to those obtained by using the same graft-copolymer as prepared in the melt. View Full-Text
Keywords: starch; polycaprolactone; glycidyl methacrylate; compatibilization; supercritical carbon dioxide; mechanical properties starch; polycaprolactone; glycidyl methacrylate; compatibilization; supercritical carbon dioxide; mechanical properties
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Iqbal, M.; Mensen, C.; Qian, X.; Picchioni, F. Green Processes for Green Products: The Use of Supercritical CO2 as Green Solvent for Compatibilized Polymer Blends. Polymers 2018, 10, 1285.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top