3D Printed CO2-Based Triblock Copolymers and Post-Printing Modification was written by Wei, Peiran;Bhat, Gulzar A.;Cipriani, Ciera E.;Mohammad, Hamza;Schoonover, Krista;Pentzer, Emily B.;Darensbourg, Donald J.. And the article was included in Angewandte Chemie, International Edition in 2022.Synthetic Route of C3H8O2 This article mentions the following:
We report the facile synthesis and 3D printing of a series of triblock copolymers consisting of soft and hard blocks and demonstrate that alkene pendant groups of the hard block can be covalently modified. The polymers are prepared using a salenCo(III)TFA/PPNTFA binary catalyst system and 1,2-propanediol as a chain transfer agent, providing an efficient one-pot, two-step strategy to tailor polymer thermal and mech. properties. Thixotropic inks suitable for direct ink write printing were formulated by dissolving the block copolymers in organic solvent and dispersing NaCl particles. After printing, porous structures were produced by removing solvent and NaCl with water to give printed structures with surfaces that could be modified via UV-initiated thiol-ene click reactions. Alternatively, a tetra-thiol could be incorporated into the ink and used for crosslinking to give objects with high solvent resistance and selective degradability. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Synthetic Route of C3H8O2).
1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Synthetic Route of C3H8O2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts