| 학회 |
한국고분자학회 |
| 학술대회 |
2002년 가을 (10/11 ~ 10/12, 군산대학교) |
| 권호 |
27권 2호, p.243 |
| 발표분야 |
고분자 합성 |
| 제목 |
Seeded Emulsion Polymerization in the Presence of Poly(styrene/α-methyl styrene/acrylic acid) |
| 초록 |
A kinetic study of seeded emulsion polymerization of styrene in the presence of SAA was performed. The seeded emulsion polymerizations of styrene/polystyrene were carried using dilatometry to determine the effect of alkali-soluble resin (ASR) on the average number of free radicals per particle as a function of conversion. Data were obtained at 50oC for the steady-state rate of polymerization initiated with potassium persulfate. The seed emulsion polymerization in the presence of ASR is affected by both pH condition and ASR concentration because ASR molecules' adsorption onto PS seed particles is very sensitive to pH condition and ASR layer onto PS seed particles plays a role in diffusion barrier of radicals. This result can be explained by the hairy ASR layer adsorbed on the particle surface and be also ascribed to the decrease in radical entry into the electrosterically stabilized particle. |
| 저자 |
신진섭, 김중현
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| 소속 |
연세대 |
| 키워드 |
seeded emulsion polymerization; average number of free radicals; pH condition; radical entry electrosterically stabilized
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| E-Mail |
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