Brzeska Joanna, Tercjak Agnieszka, Sikorska Wanda, Kowalczuk Marek, Rutkowska Maria
Department of Commodity Industrial Science and Chemistry, Gdynia Maritime University, 83 Morska Street, 81-225 Gdynia, Poland.
Department of Chemical and Environmental Engineering, Group 'Materials+Technologies' (GMT), University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia-San Sebastián, Spain.
Polymers (Basel). 2020 May 7;12(5):1068. doi: 10.3390/polym12051068.
The number of cross-links in the non-linear polyurethane structure is the basic factor affecting its properties. Selected properties of aliphatic polyurethanes with soft segments made of different amounts of polycaprolactonetriol, polycaprolactonediol and synthetic, telechelic poly([R,S]-3-hydroxybutyrate) were determined. On the basis of changes in polyurethane properties, the correlation between these properties and the construction of soft segments was found. The structure of polyurethanes, their morphology, hydrophilicity, thermal and mechanical properties were examined. These properties were changed linearly up to 15% content of polycaprolactonetriol in soft segments. A further increase in the amount of triol causes that these properties are mainly determined by the high number of cross-links.
非线性聚氨酯结构中的交联数量是影响其性能的基本因素。测定了由不同量的聚己内酯三醇、聚己内酯二醇和合成的、遥爪型聚（[R,S]-3-羟基丁酸酯）制成的具有软段的脂肪族聚氨酯的选定性能。基于聚氨酯性能的变化，发现了这些性能与软段结构之间的相关性。研究了聚氨酯的结构、形态、亲水性、热性能和机械性能。在软段中聚己内酯三醇含量达到15%之前，这些性能呈线性变化。三醇含量的进一步增加导致这些性能主要由大量的交联决定。
