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BMA와 PVA, AIBN의 suspension polymerization 진행시 BMA가 완전한 polymer가 되지 못한 것도 많기 때문에 solvent인 toluene에 다 녹지 않고 풀어져서 불순물이 발생 했을 것으로 생각된다. 즉, toluene과 같은 용매는 고분자를 녹이는 용매이기에 고분자가 되지
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in the treatment of most forms of acne. It is typically placed over the affected areas in gel or cream form, in concentrations of 2.5% increasing through the usually effective 5% to up to 10%. Research suggests that 5 and 10% concentrations are not significantly more effective than 2.5% and 2.5% is
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polymerization of water soluble Acrylic Adhesive
Mw
b.p
(℃)
Tg
(℃)
Structure
Monomer
n-Butyl Acrylate
(BA)
128.17
145
-55
CH2=CHCOOC4H9
Methyl methacrylate
(MMA)
100.12
100
105
CH2=CH3COOCH3
Functional
monomer
Acrylic Acid
(AA)
72.06
139
106
CH2=CHCOOH
Surfactant
Initator
Aommonium Persulfate
(APS)
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OF GENERAL HETEROCHAIN POLYMER TYPERS
Some Common Difunctional Monomers Used in Condensation Polymerizations
Common Monomers for Ring-scission polymerization Polymerization
Common Double-bonded Monomers used in Addition Polymerization
Common Monomers for Ring-scission polymerization Poly
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of Polymeric Materials, 2th, Wiley
6. http://en.wikipedia.org/wiki/Methyl_methacrylate
7. Duval-Terrie, C., Lebrun, L, “Polymerization and Characterization of PMMA,” Journal of Chemical Education., 83, 443(2006) 1. 실험 목적
2. 이론적 배경
2. 1 PMMA (Polymethyl methacrylate)
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