英文名稱:Poly(ethylene glycol) methyl ether acrylate
                                        分子式:CHCo2(CH2CH2O)NCH3
                                        分子量:1K,2K,5K,10k,20k
                                        
                                    
                                        
                                        英文名稱:4ARM-PEG-COOH
                                        分子式:C13H20O12(C2H4O)N(C2H4O)N(C2H4O)N(C2H4O)N
                                        分子量:10K,20K,40K
                                        
                                    
                                        
                                        英文名稱:Epoxide-PEG-Epoxide
                                        分子式:[H]CCo[H].ClCC1OC1.[N]
                                        分子量:1K,2K,3.4K,5K,10K,20K