폴리스티렌겔내에서 침전중합법에 의한 Poly(AA-co-EGDMA) Microgel의 합성

김공수; 조병호; 조석형

Journal of the Korean Industrial and Engineering Chemistry, Vol.7, No.2, 350-355, April, 1996

Export Citation

폴리스티렌겔내에서 침전중합법에 의한 Poly(AA-co-EGDMA) Microgel의 합성

Synthesis of Poly(AA-co-EGDMA) Microgels by Precipitation Polymerization in Polystyrene Gel

김공수, 조병호, 조석형

초록

Poly(AA-co-EGDMA) microgel은 시크로헥산/아세톤용액에 팽윤된 폴리스티렌겔 용액중에서 침전중합 방법으로 합성하였다. Microgel을 합성함에 있어서 폴리스티렌의 농도, 가교제의 농도, 폴리스티렌과 모노머의 비율 및 용매의 성질에 따라 0.18∼0.55㎛의 입자크기로 조절할 수 있었으며, 구형의 단분산성 microgel을 합성할 수 있었다. 또한 폴리스티렌 용액의 농도가 증가함에 따라 microgel의 입자크기는 작아졌고, 가교제의 농도가 증가할 수록 입자크기는 증가하였다.

Poly(AA-co-EGDMA) microgels were prepared by precipitation polymerization in highly swollen polystyrene gel solution. The polymerization was carried out in selective solvent such as cyclohexane/acetone at 60℃. Poly(AA-co-EGDMA) microgels with various site of 0.18∼0.55㎛ were obtained from different concentration of polystyrene(PS), concentration of crosslinking agent(EGDMA), ratio of Ps/monomer and volume ratio of solvents. The particle size of poly(AA-co-EGDMA) microgels decreased with increasing the concentration of PS and increased with that of EGDMA.

[References]

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[2] Rembaum R, Dreyer WJ, Science, 208, 364 (1980)

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

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

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

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

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

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

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

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

[11] Ober CK, Hair ML, J. Polym. Sci. A: Polym. Chem., 25, 1395 (1987)

[12] Saha SK, Chaudhuri AK, J. Polym. Sci. A: Polym. Chem., 25, 519 (1987)

[13] Kawaguchi H, Hoshino H, Amagsa H, Ohtuka Y, J. Colloid Interface Sci., 97, 465 (1984)