Fabrication and Properties of a Bio-Based Biodegradable Thermoplastic Polyurethane Elastomer

Synthesis of bio-based thermoplastic polyurethane elastomers containing isosorbide and polycarbonate diol and their biocompatible properties.

A new family of highly elastic polyurethanes (PUs) partially based on renewable isosorbide were prepared by reacting hexamethylene diisocyanate with a various ratios of isosorbide and polycarbonate diol 2000 (PCD) via a one-step bulk condensation polymerization without catalyst. The influence of the isorsorbide/PCD ratio on the properties of the PU was evaluated. The successful synthesis of the...

Enhanced Coarse-Graining of Thermoplastic Polyurethane Elastomer for Multiscale Modeling

The objective of this work is to develop a multiscale modeling tool of copolymers with long chains. We propose an enhanced coarse-graining method of thermoplastic polyurethane (TPU) with three beads. The proposed coarse-graining provides an accurate molecular modeling tool to keep the molecular interaction together with computational efficiency. The coarse-grained model with three beads is furt...

Thermal and Morphological Properties of Thermoplastic Elastomer Nanocomposites Based on PA6/NBR

Clear castable polyurethane elastomer for fabrication of microfluidic devices.

Polydimethylsiloxane (PDMS) has numerous desirable properties for fabricating microfluidic devices, including optical transparency, flexibility, biocompatibility, and fabrication by casting; however, partitioning of small hydrophobic molecules into the bulk of PDMS hinders industrial acceptance of PDMS microfluidic devices for chemical processing and drug development applications. Here we descr...

Investigation of the Properties of Polyurethane Elastomer Based on Synthesis and Characterization of PTHF-GAP-PTHF Triblock Copolymer

Binder has a key role in the performance of composite propellants. The binders are classified into two neutral and high-energy categories. GAP is one of the most important energetic binders, but it has poor mechanical and thermal properties. The goal of this investigation is to improve the properties of GAP by copolymerizing it with polytetrahydrofuran. New energy triblock copolymer was synthes...