Ultra high molecular weight PMMA was successfully analysed using advanced triple detection GPC. Gamma-sterilized PMMA was shown to have a much lower molecular weight, clearly indicating that the radiation had a polymer cleaving action
                        
                                            
                            Ultra high molecular weight PMMA was successfully analysed using advanced triple detection GPC. Gamma-sterilized PMMA was shown to have a much lower molecular weight, clearly indicating that the radiation had a polymer cleaving action