Studies on Polymerization Mechanism by Cpolymerization
نویسندگان
چکیده
منابع مشابه
Studies on the mechanism of the lactide polymerization with highly active zinc guanidine catalysts
Polylactide (PLA) is a biodegradable polyester which is able to replace petrochemical based plastics in many fields [1]. It is commonly produced by ring-opening polymerisation (ROP) of the cyclic diester lactide with metal containing initiator systems using anionic ligand systems [2]. Zinc complexes with neutral guanidine ligands have proven to be highly active initiators in the ROP of lactide ...
متن کاملMechanism of immunoglobulin A polymerization.
Employing mercaptoethylamine as a reducing agent, it was demonstrated by analytical ultracentrifugation and polyacrylamide gel electrophoresis that polymeric immunoglobulin A (IgA) was reduced to a 10 S dimer and 7 S monomer, and that dimer IgA was more resistant to reductive cleavage than the higher polymers. When dimer and monomer IgA were subjected to electrophoresis in polyacrylamide gels i...
متن کاملMechanism of regulation of actin polymerization by Physarum profilin
Physarum profilin reduces the rates of nucleation and elongation of F-actin and also reduces the extent of polymerization of actin at the steady state in a concentration-dependent fashion. The apparent critical concentration for polymerization of actin is increased by the addition of profilin. These results can be explained by the idea that Physarum profilin forms a 1:1 complex with G-actin and...
متن کاملMechanism of Initiation of Polymerization by Ferric Acetylacetonate
Results on the autooxidative decomposition of the transition metal B-diketonates (1-3) suggested the possibility of these chelates acting as initiators for the radical polymerization of vinyl monomers. Research in this field soon revealed the importance of the central metal atom as well as the ligand structure (4-10). Of a series of metal acetylacetonate~-Mn(Acac)~, M n ( A ~ a c ) ~ , Fe( A ~ ...
متن کاملStudies Toward Highly Fluorinated Polyphenylenes by Diels-Alder Polymerization
Diels-Alder polyphenylenes (DAPPs) are chemically and thermally stable polymers, used for dielectric resins, gas separation membranes, and fuel cell proton exchange membranes. Highly fluorinated DAPPs are expected to have better thermal stability and chemical resistance, higher glass transition temperatures, improved compatibility with other fluorinated polymers (like Nafion), and better adhesi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kobunshi
سال: 1967
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.16.12_1288