title: The MPEG monophosphate ester: synthesis and characterization.
abstract: Methods of preparation of the phosphoric ester of monomethyl ether of poly(ethylene glycol) (MPEG-P) from MPEG (M(n) = 550 and 2000) and phosphoric acid (P), or its derivatives - pyrophosphoric acid (PY), polyphosphoric acid (PP) and POCl(3)- are described and compared. MPEG-P was isolated in a pure state (no detectable impurities) and characterized.
authors.affiliation: Department of Polymer Chemistry, Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łodz, Poland. spenczek@bilbo.cbmm.lodz.pl
authors.forename: Stanislaw
authors.initials: S
authors.lastname: Penczek
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Kaluzynski
authors.forename: Blazej
authors.initials: B
authors.lastname: Wisniewski
authors.forename: Julia
authors.initials: J
authors.lastname: Pretula
authors.forename: Ryszard
authors.initials: R
authors.lastname: Szymanski
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Lapienis
mesh_terms: D004952:Esters / Q000138:chemical synthesis* / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010756:Phosphoric Acids / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000737:chemistry
chemical_list: D004952:Esters; D010756:Phosphoric Acids; D011108:Polymers; D011092:Polyethylene Glycols; C047269:polyphosphoric acid; C028210:monomethoxypolyethylene glycol