In 2019,Proceedings of the National Academy of Sciences of the United States of America included an article by Bates, Morgan W.; Lequieu, Joshua; Barbon, Stephanie M.; Lewis, Ronald M. III; Delaney, Kris T.; Anastasaki, Athina; Hawker, Craig J.; Fredrickson, Glenn H.; Bates, Christopher M.. Application In Synthesis of Cupric bromide. The article was titled 《Stability of the A15 phase in diblock copolymer melts》. The information in the text is summarized as follows:
The self-assembly of block polymers into well-ordered nanostructures underpins their utility across fundamental and applied polymer science, yet only a handful of equilibrium morphologies are known with the simplest AB-type materials. Here, we report the discovery of the A15 sphere phase in single-component diblock copolymer melts comprising poly(dodecyl acrylate)-block-poly(lactide). A systematic exploration of phase space revealed that A15 forms across a substantial range of minority lactide block volume fractions (fL = 0.25 – 0.33) situated between the σ-sphere phase and hexagonally close-packed cylinders. SCF theory rationalizes the thermodn. stability of A15 as a consequence of extreme conformational asymmetry. The exptl. observed A15-disorder phase transition is not captured using mean-field approximations but instead arises due to composition fluctuations as evidenced by fully fluctuating field-theoretic simulations. This combination of experiments and field-theoretic simulations provides rational design rules that can be used to generate unique, polymer-based mesophases through self-assembly. After reading the article, we found that the author used Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide)
Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Application In Synthesis of Cupric bromide
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”