Grafting from
‘‘Grafting-from’’ involves an in situ polymerization of an initiator functionalized surface with monomer.
Grafting onto
“Grafting-onto” involves the chemical reaction preformed, functionalized polymers with surfaces containing complementary functional groups
Advantage
-simple synthesis
-Accurate characterization of the preformed polymers
Limitation
-cannot
1. Limitations of economy supporting by financial, interest rate policy
Budget deficit, quantitative easing did not worked
2. Export for survival
Increasing worries about double deep
Beggar thy neighbor policy
3. U.S strategy – Election on november
(President & CEO)
Area served: Worldwide
Digital typhoon approaching.
- There was Fast growth of Digital camera sales.
- Photo market has moved from analog to digital.
- Film sales has decreased gradually.
Survival of Fuji.
To squeeze as much money out of the film business as possible, to prepare for the switch to digital and to develop new business line.
1. 경피적 간담관 배액(Percutaneous transhepatic biliary drainage: PTBD)
1) 경피적 간담관 배액은 수술이 불가능하거나 수술의 위험성이 높은 환자에게 간, 췌장 담관 등의 암으로 인한 담관의 폐색을 완화시키는 방법이다. 이 방법을 통해 담즙을 십이지장으로 쉽게 통과시켜서 황달과 불편감을 감소시킬 수 있
Significantly higher surface area and much narrower pore size distribution in the mesopore region
A large amount of amine-type CO2 capturing agent into its mesopores in a well dispersed manner
Synthesis of MA
PEI impregnation on MA
Amine grafting on MCM-41
Characterization of the materials prepared
CO2 adsorption-desorption measurement
Al(i-PrO)3 (41.68g)+ Alcohol solvent