Rangamani, Adithya published the artcileEffect of backbone and end-group regioisomerism on thermomechanical properties of vanillin-based polyurethane networks, Application In Synthesis of 7575-23-7, the main research area is vanillin polyurethane network thermomech property.
Monomer composition, crosslink d., and crosslink distribution are the primary determinants of material properties in thermosetting networks. Here, we investigate the effect of regioisomerism and composition in polymeric networks via a recently developed scalable sequence-defined polyurethane macromer (SD-PUM) platform. The iterative, support-free SD-PUM platform facilitates the assembly of macromers with tunable backbones and pendant groups at the gram-scale. A series of SD-PUMs made with different end-groups and vanillin positional isomers were synthesized and crosslinked into thermosetting networks via multivalent thiol crosslinkers. The results show that the thermomech. properties of the ensuing networks are sensitive to the choice of regioisomer embedded in the SD-PUM backbone as well as the type of macromer end-group. When a crosslinker with higher functionality is employed, regioisomeric differences result in more pronounced changes in material properties. This work showcases the robustness of the SD-PUM platform and its use of backbone and end-group regioisomers to modulate material properties.
Polymer Chemistry published new progress about Complex modulus. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application In Synthesis of 7575-23-7.
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