Topic
Polyurethane
About: Polyurethane is a research topic. Over the lifetime, 32190 publications have been published within this topic receiving 322765 citations. The topic is also known as: PU.
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TL;DR: The thermal stability and flame retardancy of polyurethanes is reviewed in this article, where a detailed description of TGA, TGA-MS and TGAFTIR methods for studying the decomposition mechanism and kinetics is also provided.
1,329 citations
TL;DR: In this article, a segmented polyurethaneurea based on poly(tetramethylene oxide)glycol, a cycloaliphatic diisocyanate and an unsymmetrical diamine were prepared.
1,025 citations
TL;DR: Isocyanate, and Non-isocyanates Polyurethane Etienne Delebecq, Jean-Pierre Pascault,‡,§ Bernard Boutevin,† and Franco̧is Ganachaud*,† are cited.
Abstract: Isocyanate, and Non-isocyanate Polyurethane Etienne Delebecq,† Jean-Pierre Pascault,‡,§ Bernard Boutevin,† and Franco̧is Ganachaud*,†,‡,§ †Institut Charles Gerhardt, UMR 5253 CNRS, Ingeńierie et Architectures Macromolećulaires, Ecole Nationale Supeŕieure de Chimie de Montpellier, 8 rue de l’ećole normale, 34296 Montpellier, Cedex 05, France ‡INSA-Lyon, IMP, UMR5223, F-69621, Villeurbanne, France Universite ́ de Lyon, F-69622, Lyon, France
839 citations
TL;DR: In this article, the specific nature of vegetable oils and the effect of their structures on the structure of polyols and polyurethanes are discussed and the environmental aspects of bio-based polyureths are discussed.
Abstract: Vegetable oils are excellent but very heterogeneous renewable raw materials for polyols and polyurethanes. This review discusses the specific nature of vegetable oils and the effect of their structures on the structure of polyols and polyurethanes. One section is dedicated to polyols for rigid and flexible foams and methods of their preparation such as direct oxidation of oils, epoxidation followed by ring opening, hydroformylation, ozonolysis, and transesterification. The next section deals with preparation and structure‐property relationships in polyurethanes from different groups of polyols, different isocyanates, and different degrees of crosslinking. The final section covers the environmental aspects of bio‐based polyurethanes, i.e., thermal stability, hydrolytic stability, and some aspects of biodegradability.
777 citations
TL;DR: In this paper, the influence of phase separation on thermal and mechanical properties of polyurethane products was addressed, focusing on the effect of polarity and dispersion interactions, hydrogen bonding and ionic interactions on the value of free surface energy.
750 citations