Next Article in Journal
Renewable Resources and a Recycled Polymer as Raw Materials: Mats from Electrospinning of Lignocellulosic Biomass and PET Solutions
Next Article in Special Issue
Enhancing the Silanization Reaction of the Silica-Silane System by Different Amines in Model and Practical Silica-Filled Natural Rubber Compounds
Previous Article in Journal
Effect of Chemical Disinfection on Chitosan Coated PMMA and PETG Surfaces—An In Vitro Study
Previous Article in Special Issue
Kinetics of Ordering and Deformation in Photosensitive Azobenzene LC Networks
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Polymers 2018, 10(5), 537; https://doi.org/10.3390/polym10050537

Thermal and Mechanical Behavior of New Transparent Thermoplastic Polyurethane Elastomers Derived from Cycloaliphatic Diisocyanate

Department of Polymer Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, ul. Gliniana 33, Lublin 20–614, Poland
Received: 25 April 2018 / Revised: 11 May 2018 / Accepted: 14 May 2018 / Published: 16 May 2018
(This article belongs to the Special Issue Elastomers)
Full-Text   |   PDF [2644 KB, uploaded 17 May 2018]   |  

Abstract

New transparent thermoplastic polyurethane elastomers (TPURs) with the hard-segment content of ≈50 mass % were synthesized by one-step melt polyaddition of 1,1′-methanediylbis(4-isocyanatocyclohexane), 2,2′-methylenebis[(4,1-phenylene)-methylenesulfanediyl]diethanol (diol E), 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid (DMPA), a poly(oxytetramethylene) diol of M ¯ n = 1000 g/mol (PTMO), or a poly(hexametylene carbonate) diol of M ¯ n = 860 g/mol (PHCD). Herein, I prepared TPURs in which 20, 40, and 60 mol % of diol E was replaced with DMPA, an ionic chain extender. The structure of polymers was examined by ATR-FTIR. Their thermal and mechanical behaviors were determined by means of thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), tensile tests, and Shore A/D hardness. Their optical properties are described. Generally, the addition of carboxyl groups to the polymer resulted in decreases in their thermal stability, transparency, and refractive indexes. Furthermore, the use of different soft segments revealed significant differences in both mechanical and thermal properties of the polymers obtained. View Full-Text
Keywords: transparent polyurethanes; carboxylate elastomers; thermal and mechanical properties; dynamical mechanical analysis; optical properties transparent polyurethanes; carboxylate elastomers; thermal and mechanical properties; dynamical mechanical analysis; optical 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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Puszka, A. Thermal and Mechanical Behavior of New Transparent Thermoplastic Polyurethane Elastomers Derived from Cycloaliphatic Diisocyanate. Polymers 2018, 10, 537.

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