SEARCH Articles Figures Tables Biodegradable Aliphatic Polyester Grafted with Poly(Ethylene Glycol) Having Reactive Groups and Preparation Method Thereof Determination of Ethylenic Groups Ethylene functional group Ethylene glycol group Ethylene glycol hydroxyl groups Ethylene oxide groups Ethylene oxide with carboxyl groups Ethylene point group Ethylene polar functional groups Ethylene reaction with amino groups Ethylene reactions with Group Ethylenic and acetylenic groups Methylene groups ethylene derivs. (from P eclipsed ethylene groups Using Group Orbitals to Make Ethylene