NSRRC Activity Report 2023

042 NSRRC ACTIVITY REPORT 2023 This report features the work of Jian-Cheng Chen, Yu-Dao Lu, and Jung-Yao Chen published in Adv. Sci. 10 , 2301028 (2023). TPS 25A Coherent X-ray Scattering TLS 23A1 Small/Wide Angle X-ray Scattering • GISAXS, GIWAXS • Materials Science Fig. 1 : TEM images of (a) PS- b -PEO/(PEA) 2 PbBr 4 and (b) PS- b -PEO/(BPMA) 2 PbBr 4 composite films. GISAXS 1D profile of (c) PS- b -PEO/(PEA) 2 PbBr 4 and (d) PS- b -PEO/(BPMA) 2 PbBr 4 composite films. 2D diffraction pattern of (e) PS- b -PEO/(PEA) 2 PbBr 4 and (f) PS- b -PEO/(BPMA) 2 PbBr 4 composite films. 1D profile of scattering vector in the out-of-plane direction of (g) PS- b -PEO/(PEA) 2 PbBr 4 and (h) PS- b -PEO/(BPMA) 2 PbBr 4 composite films. [Reproduced from Ref. 5] References 1. Y.-H. Chao, J.-C. Chen, D.-L. Yang, Y.-J. Tseng, C.-H. Hsu, J.-Y. Chen, Adv. Funct. Mater. 32 , 2112521 (2022). 2. L. D. Wiyanto, B. J. You, L. J. Chiang, D. L. Yang, J. Y. Chen, Adv. Funct. Mater. 32 , 2206040 (2022). 3. W. Zhao, Z. He, B. Z. Tang, Nat. Rev. Mater. 5 , 869 (2020). 4. K. Ema, M. Inomata, Y. Kato, H. Kunugita, M. Era, Phys. Rev. Lett. 100 , 257401 (2008). 5. J.-C. Chen, Y.-D. Lu, J.-Y. Chen, Adv. Sci. 10 , 2301028 (2023). CO 2 Reuse Through Eco-Friendly Polymers Recyclable gas separation membranes for CO 2 prepared from high-performance polyurethane (PU)/SiO 2 nanohybrids using recycled polycarbonate (PC) and CO 2 -based compounds introduce the concept of circular economy into membrane materials. I n recent decades, the escalating levels of greenhouse gases, particularly carbon dioxide (CO 2 ), has become a worldwide concern. The surge in CO 2 emissions, driven by advancements in chemical industries and utilization of synthetic polymers derived from petroleum fossil fuels, has resulted in severe consequences including extreme weather events, glacier melting, rising sea levels, and the extinction of various species. Despite its negative impact to the environment, CO 2 is cost-effective, abundant, and non-toxic, making it a versatile industrial material. Researchers have extensively explored applications of CO 2 in areas such as oil extraction, drug solubility, and particle formation using supercritical fluid technology. CO 2 has also been utilized as a feedstock for polymers, significantly improving process design and polymer engineering. For example, cyclic ethers can be utilized as comonomers, combining them with CO 2 to form polycarbonate (PC) polymers such as aliphatic polycarbonate polyols which are used to prepare specialty polyurethanes (PUs). Although the use of CO 2 as a raw material is widespread, a crucial strategy for mitigating CO 2 gas emissions involves advancing selective gas capture and storage technologies based on separation membranes crafted from composite polymers.