辐射接枝 1016.ppt

Chapter 6. Radiation grafting copolymerization;6.2 The preparation of copolymer with chemical method;Two polymers reaction:;6.3 Radiation grafting coplymerization(辐射接枝）;6.3.2 Preirradiation grafting （预辐射接枝）;6.3.3 Surface modification;6.4 Radiation technique;Monomer ;Substrate;;Short life;a. unirradiated b. irradiated;6.5 How to perform the preirradiation grafting;6.6 Characterization of grafted polymer;6.6.2 determination of water contact angle;6.6.4 Determination of water content (or swelling ratio);6.6.5 determination of surface properties by IR;6.6.6 Determination of surface by ESCA;GRAFTING COPOLYMERIZATION OF 2-METHACRYLOYLOXYETHYL PHOSPHORYL-CHOLINE (MPC) ONTO PREIRRADIATED CELLULOSE FILMS;INTRODUCTION;Properties of MPC;2. RESEARCH WORKS REPORTED;;3. THIS EXPERIMENT;;Substrate;Substrate;To make the comb like surface structure by grafting reaction;RESULTS AND DISSCUSSION;;Fig. 2. Effect of monomer concentration on the degree of grafting (Grafting reaction was performed in: a. aqueous solution of MPC (2.5%) with 1.0?10-3M FeSO4 and b. MPC+ PEGMA MeOH/ H2O 1:1 at 70oC for 5h);Fig. 3. Effect of reaction time on the degree of grafting (Grafting reaction was performed in MeOH/ H2O 1:1 solution system with 1% MPC at 70oC);Fig. 4. FTIR/ATR spectra of MPC grafted cellulose films (Grafting reaction was performed in aqueous solution of MPC (1%) in the presence of 1?10-3M FeSO4 at 70oC for 5h; Dose: 30kGy);Fig. 5. FTIR/ATR spectra of MPC/PEGMA grafted cellulose films (Grafting reaction was performed in MeOH/ H2O (1:1) co-solvent system with MPC 2.5% /PEGMA 2.5% at 70oC for 5h; Dose: 30kGy);Control;;CONCLUSSION;;辐射综合效应;智能水凝胶在药物控制释放中的应用;Poly(NIPAAm) solution T LCST;Poly(NIPAAm) solution T LCST;“ON-OFF” Drug release system “off” position;Drug delivery system;Seprations ;2. RADIATION POLYMERIZATION CROSSLINKING;Reactions:;About Chitosan;Others;pH;Results;Crosslink;Swelling behavior of PAAc/cs hydrogel at different pH condition ;离子交换膜的合成及应用 金属离子吸附材料的合成及