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Kinetic Investigation of Polyurethane Rubber Formation from CO 2 ‐Containing Polyols
Author(s) -
Buchner Georg A.,
Rudolph Maik,
Norwig Jochen,
Marker Volker,
Gürtler Christoph,
Schomäcker Reinhard
Publication year - 2020
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201900103
Subject(s) - polyurethane , double bond , kinetics , polymer chemistry , natural rubber , polyol , chemistry , elongation , reaction mechanism , chemical engineering , materials science , organic chemistry , catalysis , composite material , ultimate tensile strength , physics , quantum mechanics , engineering
A novel CO 2 utilization technology allows for the inclusion of CO 2 as carbonate units and double bond moieties to give additional functionality in polyether polyols. This study examines the chain‐elongation kinetics of these diols with diisocyanates to polyurethane rubbers by means of thermal analysis. A reaction order of 1 indicates a strong influence of the chains' mobility on the reaction rate. Spectrometry and comparison with non‐double‐bond polyols reveal that the effect cannot be attributed to a substantial occurrence of side reactions but is rather due to the intertwining of lengthy chains.