No abstract

SEM micrographs of the formed CaCO 3 structures taken after 80 h mineralization using the Kitano method at room temperature (Polymer PEG(45)-b-PGL( 27) concentration 1 g N l -1 , 100% phosphorylation degree.

Conditions of synthesis of poly(ethylene phosphates) in reaction of H 3 PO 4 with HOCH 2 CH 2 OH (EG), the actual path of polycondensation, and structure of the obtained polymers (mostly oligomers) and kinetics of reaction are described. Preliminary kinetic information, based on the comparison of the MALDI-TOF-ms and 31 P{ 1 H} NMR spectra as a function of conversion is given as well. Because of the dealkylation process fragments derived from di-and triethylene glycols are also present in the repeating units. Structures of the end groups (À ÀCH 2 CH 2 OH or À ÀOP(O)(OH) 2 ) depend on the starting ratio of [EG]