ArticleInternational journal of molecular sciences2021
Green TPUs from Prepolymer Mixtures Designed by Controlling the Chemical Structure of Flexible Segments.
Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Selective Elastane Removal Using DMSO-DBN Under Moderate Temperatures: From Pure Filaments to Cotton/Polyester Blends.Polymers · 2025Article
- An Innovative Approach of Using a Bio-Based Polyurethane Elastomer to Overcome the "Magic Triangle" in Tires.Materials (Basel, Switzerland) · 2025Article
- Chemical Structure and Thermal Properties versus Accelerated Aging of Bio-Based Poly(ether-urethanes) with Modified Hard Segments.Molecules (Basel, Switzerland) · 2024Article
- Recent Developments in Synthesis, Properties, Applications and Recycling of Bio-Based Elastomers.Molecules (Basel, Switzerland) · 2024Review
- Article
- The Influence of Diisocyanate Structure on Thermal Stability of Thermoplastic Polyurethane Elastomers Based on Diphenylmethane-Derivative Chain Extender with Sulfur Atoms.Materials (Basel, Switzerland) · 2023Article
- Influence of Surface-Modified Montmorillonite Clays on the Properties of Elastomeric Thin Layer Nanocomposites.Materials (Basel, Switzerland) · 2023Article
- Article
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Authors and funding
5 authors.
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Abstract
This study concerns green thermoplastic polyurethanes (TPU) obtained by controlling the chemical structure of flexible segments. Two types of bio-based polyether polyols-poly(trimethylene glycol)s-with average molecular weights ca. 1000 and 2700 Da were used (PO3G1000 and PO3G2700, respectively). TPUs were prepared via a two-step method. Hard segments consisted of 4,4'-diphenylmethane diisocyanates and the bio-based 1,4-butanodiol (used as a chain extender and used to control the [NCO]/[OH] molar ratio). The impacts of the structure of flexible segments, the amount of each type of prepolymer, and the [NCO]/[OH] molar ratio on the chemical structure and selected properties of the TPUs were verified. By regulating the number of flexible segments of a given type, different selected properties of TPU materials were obtained. Thermal analysis confirmed the high thermal stability of the prepared materials and revealed that TPUs based on a higher amount of prepolymer synthesized from PO3G2700 have a tendency for cold crystallization. An increase in the amount of PO3G1000 at the flexible segments caused an increase in the tensile strength and decrease in the elongation at break. Melt flow index results demonstrated that the increase in the amount of prepolymer based on PO3G1000 resulted in TPUs favorable in terms of machining.
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