고분자용액 내에서 침전중합법에 의한 Polystyrene Microsphere의 합성

김영준; 김공수; 조석형

Polymer(Korea), Vol.21, No.3, 347-351, May, 1997

Export Citation

고분자용액 내에서 침전중합법에 의한 Polystyrene Microsphere의 합성

Synthesis of Polystyrene Microspheres by Precipitation Polymerization in Polymer Solution

김영준, 김공수, 조석형

초록

Polystyrene microsphere는 styrene(St)을 poly(acrylic acid)/ethanol 용액 중에서 침전중합시켜 제조하였다. Polystyrene microsphere는 PAA의 농도, PAA와 모노머의 비율 및 용매의 성질에 따라 침전중합에 의해 크기가 다르게 합성하였다. PAA 용액의 농도가 증가함에 따라 polystyrene microsphere의 입자크기는 작아졌으나 모노머인 St의 양이 증가할수록 입자의 크기는 증가하였다. 용매의 용해도 파라메타의 값을 변화시켜 중합한 결과 용해도 파라메타 값이 증가할수록 polystyrene microsphere의 입자 크기가 작아지는 경향을 나타내었다. Polystyrene microsphere의 입자 크기는 0.1㎛ 에서 0.35㎛까지 중합조건에 따라 조절할 수 있었다.

Polystyrene microsphere was prepared by precipitation polymerization of styrene (St) in poly(acrylic acid)/ethanol solution. Polystyrene microspheres with various size were obtained by changing the concentration of poly(acrylic acid) (PAA), styrene monomer and nature of solvents. The particle size of polystyrene microspheres decreased with increasing the concentration of PAA and increased with that of styrene monomer. With increasing solubility parameter of solvents, the particle size decreased. The size of polystyrene microspheres was controlled by four experimental condition from 0.1㎛ to 0.35㎛.

Keywords:microsphere;polystyrene;precipitation polymerization;polymer solution

[References]

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[2] Furusawa K, Kimmura Y, Tagawa T, J. Colloid Interface Sci., 109, 69 (1986)

[3] Kawaguchi H, Surface, 25(2), 99 (1987)

[4] Mizama H, J. Surf. Soc., 8(5), 150 (1987)

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[6] Rembaum R, Dreyer W, Science, 208, 364 (1980)

[7] Shahar M, Meshulam H, Margel S, J. Polym. Sci. A: Polym. Chem., 24, 203 (1986)

[8] Kitano H, Kobunshi, 36, 660 (1987)

[9] Klech CM, Li X, J. Pharm. Sci., 79, 999 (1990)

[10] Graillat C, Pichot C, Guyot A, El-Aasser MS, J. Polym. Sci. A: Polym. Chem., 24, 427 (1986)

[11] Cherm CS, Poehlein GW, J. Polym. Sci. A: Polym. Chem., 25, 617 (1987)

[12] Chainey M, Hearn J, Wilkinson MC, J. Polym. Sci. A: Polym. Chem., 25, 505 (1987)

[13] Tseng CM, Lu YY, El-Aasser MS, Vanderhoff JW, J. Polym. Sci. A: Polym. Chem., 24, 2995 (1986)

[14] Goodwin JW, Antl L, Hill RD, Ottewill RH, Colloids Surf., 17, 67 (1986)

[15] Okey O, J. Appl. Polym. Sci., 34, 307 (1987)

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[20] Park MH, Ishizu K, Fukutomi T, Polymer, 30, 202 (1989)

[21] Saito R, Ishizu K, Fukotomi T, Polymer, 31, 679 (1990)

[22] Saito R, Ishizu K, Fukotomi T, Polymer, 32, 531 (1991)

[23] Saito R, Ishizu K, Fukotomi T, Polymer, 32, 2258 (1991)