Chen, Mao published the artcileLiving Additive Manufacturing: Transformation of Parent Gels into Diversely Functionalized Daughter Gels Made Possible by Visible Light Photoredox Catalysis, Computed Properties of 1353016-70-2, the publication is ACS Central Science (2017), 3(2), 124-134, database is CAplus and MEDLINE.
Existing light-initiated additive manufacturing techniques typically rely on layer-by-layer addition or continuous extraction of polymers formed via nonliving, free radical polymerization methods. This approach renders the final materials “dead” toward further monomer insertion; the chains within the final material cannot be reactivated to further induce material growth. An alternative approach to photocontrolled additive manufacturing would involve repeated spatiotemporal insertion of new monomers into a preformed “parent” material to generate more complex and diversely functionalized “daughter” materials. Such an approach would require the development of a photocontrolled polymerization capable of insertion of new functionality directly into a polymer network with living strands. Here, we demonstrate a proof-of-concept study of this living additive manufacturing concept using end-linked polymer networks with embedded trithiocarbonate iniferters that can be activated in the presence of visible light and an organic photoredox catalyst (10-phenylphenothiazine) to achieve controlled insertion of monomers and crosslinkers within the network strands. This system enables, for the first time, the synthesis of a wide range of chem. and mech. differentiated daughter gels from a single parent material via precise modification of the average chain length, crosslinking d., and composition of polymer networks. For example, daughter gels that are softer than their parent, stiffer than their parent, larger but with exactly the same modulus as their parent, thermally responsive, polarity responsive, healable, and weldable are all realized.
ACS Central Science published new progress about 1353016-70-2. 1353016-70-2 belongs to quinuclidine, auxiliary class Other Aromatic Heterocyclic,Carboxylic acid,Amide,Inhibitor,Inhibitor, name is Dbco-acid, and the molecular formula is C19H15NO3, Computed Properties of 1353016-70-2.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider