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| TCI Materials Science News May 2022 | ||||
TCI is at the forefront of offering high quality materials for R&D. This issue covers our materials science topics as follows | ||||
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Acrylic Monomers for Biomaterials ResearchIn polymer biomaterials research, the desire to accelerate exploring promising candidates and optimizing their structures results in increased attention to high-throughput experiments or combinatorial methodologies. For acrylic polymers statistical or block copolymers are provided by high-throughput synthesis using controlled radical polymerization. It benefits from a simple way of controlling molecular weight and distribution. For instance, rapid discoveries of drug delivery systems for a ribonucleoprotein (RNP) and mRNAs by a reversible addition-fragmentation chain transfer (RAFT) polymerization were reported. TCI offers many common acrylic monomers used for biomaterials research. | ||||
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Highly Durable Polymer Capable of Post-Modification: Poly(pentafluorostylene)Poly(pentafluorostylene) [P2900] has high heat resistance and high chemical resistance. P2900 is capable of post-modification by aromatic nucleophilic substitution reaction. For example, chemically modified polymers have been reported as anion exchange membrane for redox flow batteries, membrane electrode assembly for fuel cells and luminescent oxygen indicators. | ||||
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Self-Assembled Monolayer (SAM) Forming Agents Making Tin-Based Perovskite Solar Cells EfficientIt has been already reported that SAM forming agents such as 2PACz [C3663] and MeO-2PACz [D5798] increase efficiency of perovskite solar cells (PSC) in case of lead-based perovskite light absorption layer. Advantages of using these carbazole-based SAM forming agents are: molecular designability, excellent mechanical flexibility, no need of dopants, negligible loss of light transmittance, large-area scalability, and almost conformal and loss-less electrical contacts. These SAM served as a hole-selective interlayer for lead-based PSCs to attain a power conversion efficiency (PCE) of more than 20%. | ||||
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Biphenylene: Condensed Polycyclic Building Block for Functional MaterialsBiphenylene [B6284] has a strained four-membered ring moiety that can be cleaved by transition metal complexes. It has been reported that biphenylene is available as a building block for condensed polycycles such as five, six, eight-membered ring compounds. | ||||
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