The present invention relates to coating agent compositions comprising at least one compound (A) containing polyhydroxyl groups, at least one compound (B) containing polyisocyanate groups, said compound having free and/or blocked isocyan... HOFFMANN PETER,WESTHOFF ELKE,MLLER BERNADETTE,... - WO ...
Synthesis and evaluation of antibacterial polyurethane coatings made from soybean oil functionalized with dimethylphenylammonium iodide and hydroxyl groups Preparation of antibacterial polyurethane coatings from novel functional soybean oil was considered in this work. First, epoxidized soybean oil (ESBO) as ...
The addition of rGO affected the molecular structure of the PLLA scaffolds: for example, the number of polar C=O functional groups was increased. Increasing the content of rGO to 1 wt% resulted in decreased glass transition and melting temperatures and increased the degree of crystallinity of ...
As in the case of aryl iodides, the coupling reactions exhibited good compatibility with functional groups such as cyclopropyl, benzyl, alkenyl, alkynyl groups (69, 70, 73, 74). In addition, high chemoselectivities for C−N and C−S coupling were observed in the presence of alcoholic ...
采用二醇/三(2, 6-二叔丁基-4-甲基苯酚)钇(Y(Oar)3)体系引发己内酯(CL)开环聚合, 得到分子量可控,双端羟基聚己内酯(PCL). 经过1H NMR和SEC分析表明聚合体系中有两种活性中心, 形成两种链结构, 二醇/Y(Oar)3比值的增大有利于单钇活性中心的形成. 聚乙二醇(PEG)/Y(Oar)3引发体系中只有一种活性中心,...
Effectiveremoval of per- and polyfluoroalkyl substances (PFAS)from the environment has become a major focus of a number of researchgroups due to their high stability and persistence in the environment.In this study, we report a fundament... X Tan,J Zhong,C Fu,... - 《Macromolecules》 被...
In contrast to the collision-induced dissociation (CID) of negatively charged PSS oligomers, which does not provide informative data with regard to the end-groups, activated-EPD is shown here to promote radical-induced dissociation reactions thanks to the oxidation of a sulfonate group upon laser ...
InEpidendrum, hybridization appears to be mainly the result of natural causes and is frequently caused by the lack of pollinator specificity and the absence of strong reproductive isolation barriers [39]. Therefore, in biological groups where hybridization is so frequent and creates successful interbree...
During the O2 plasma treatment, PDMS repeat units are partially etched on the surface, losing their methyl groups and forming silica. The plasma treatment may also cause cross-linking, but this effect is relatively limited in PDMS36. In contrast, oxygen-containing polymers such as PEO tend to ...
Interestingly, we observed a distinct bimodal distribution in the tail length of transcripts from genes with mean tail lengths longer than 50 nt (Groups 1-3), in stark contrast to the short-tailed transcripts that dominate the maternal mRNA pool (Group4) (Fig.5d). For simplicity, we classifi...