《Influence of HMTA ligand in MMA AGET ATRP emulsion polymerization》 was written by Awad, Mohammed; Dhib, Ramdhane; Duever, Thomas. Application In Synthesis of Cupric bromide And the article was included in Journal of Applied Polymer Science in 2020. The article conveys some information:
Interactions of hexamethylenetetramine ligand in atom transfer radical polymerization initiated by activator generated by electron transfer were studied. Polymerization of Me methacrylate was done using two-step exptl. procedure in 2 L emulsion batch reactor at 50, 60, and 80°C. The selection of reactant ratios was quite challenging for a reactor of this size. Replicate runs were conducted for data reproducibility purpose. Gravimetry method and gel permeation chromatog. were used to determine monomer conversion, Mn, and PDI of polymer samples. PMMA produced was also characterized by means of dynamic light scattering, Fourier-transform IR spectroscopy and NMR spectroscopy. Results showed high monomer conversion up to 93% and Mn ranging 243-274 kg/mol with PDI from 1.45 to 1.60. Besides, combining HMTA with sodium dodecyl sulfate, an anionic surfactant, a well-controlled polymer with a lower Mn of 201 kg/mol and PDI of 1.56 was obtained in 3 h reaction time. The experimental process involved the reaction of 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”