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Star poly(amido amine)-b-poly(ɛ-caprolactone)-b-poly(d-gluconamidoethyl methacrylate) (PAMAM–PCL–PGAMA) block copolymers with a dendrimer core were synthesized from the ring-opening polymerization of ɛ-caprolactone using a hydroxyl-terminated dendrimer poly(amido amine) initiator followed by the direct atom transfer radical polymerization of unprotected glycomonomer. The self-assembly and the biomolecular...
Both well defined star-shaped poly(ε-caprolactone) having four arms (4sPCL) and six arms (6sPCL) and linear PCL having one arm (LPCL) and two arms (2LPCL) were synthesized and then used for the investigation of physical properties, isothermal and nonisothermal crystallization kinetics, and spherulitic growth. The maximal melting point, the cold crystallization temperature, and the degree of crystallinity...
d,l-3-methylglycolide (MG) was successfully polymerized with multifunctional initiator (trimethylolpropane (TMP) or pentaerythritol (PTOL)) and stannous octoate (SnOct2) catalyst in bulk at 110°C. The effects of molar ratios of monomer to initiator, monomer to catalyst and monomer conversion on the molecular weight of polymer were studied. For the homopolymerization of MG with TMP initiator and SnOct...
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