기능성 오일을 함유하는 폴리우레탄 마이크로캡슐의 제조 및 분석

김인회; 서재범; 김영준; In Hoi Kim; Jae Bum Seo; Young Jun Kim

Polymer(Korea), Vol.26, No.3, 400-409, May, 2002

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기능성 오일을 함유하는 폴리우레탄 마이크로캡슐의 제조 및 분석

Preparation and Characterization of Polyurethane Microcapsules Containing Functional Oil

김인회^†, 서재범, 김영준

성균관대학교 응용화학부 텍스타일시스템공학전공, 경기 440-746

In Hoi Kim^†, Jae Bum Seo, and Young Jun Kim

College of Applied Chemistry, Dep. of Textile System Engineering, SungKyunKwan University, 300 Chunchun-Dong, Jangan-gu, Suwon, Kyunggi-do 440-746, Korea

E-mail:

초록

기능성 오일 (citronella oil)을 함유하는 폴리우레탄 마이크로캡슐을 계면중합을 이용하여 tolulene 2,4-diisocyanate (TDI)와 ethylene glycol (EG)로부터 제조하였으며, 제조된 마이크로캡슐을 적외선분광분석, 자외선분광분석, 입도분석기, 열중량측정기, 주사전자현미경을 이용하여 분석하였다. 마이크로캡슐의 제조시 이용된 분산제의 농도 및 교반속도와 같은 변수가 제조된 마이크로캡슐의 입자크기 및 분포에 미치는 영향을 조사하였다. 또한, 적외선분광분석을 통해 citronella 오일이 성공적으로 캡슐화되었음을 알 수 있었고 열중량측정으로 마이크로캡슐은 약 220 ℃ 정도까지 안정함을 알 수 있었다. 마이크로캡슐을 메탄올 용매에 넣어 캡슐 속의 citronella 오일의 방출거동을 자외선분광분석을 통해 조사하였다. Citronella 오일의 방출양은 캡슐 제조 시 적용된 교반속도 및 분산제의 농도를 증가시킴에 따라 증가하였다. Citronella 오일을 함유하는 마이크로캡슐은 우수한 방충효과를 나타내었다.

Polyurethane microcapsules containing functional oil (citronella oil) were successfully prepared by conventional interfacial polymerization of tolulene 2,4-diisocyanate (TDI) and ethylene glycol(EG) and characterized by Fourier transform (FT-IR) spectroscopy. Ultraviolet spectroscopy, particle size analysis, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The effects of polymerization variables, such as surfactant concentration and agitation speed, on the particle size and particle size distribution were investigated FT-IR spectroscopic data showed that citronella oil was successfully encapsulated in the microcapsule. Thermogravimetric analysis data showed that the microcapsule was thermally stable up to 220 ℃. The controlled release of the citronella oil present in the microcapsule core in a methanol medium was demonstrated by ultraviolet spectroscopy, showing that the amount of released citronella oil was increased with increasing time. It was observed that the amount of released citronella oil was increased with increasing stirring speed and emulsifier concentration in the microcapsule preparation step. Polyurethane microcapsules containing citronella oil showed excellent anti-moth property.

Keywords:polyurethane microcapsule;functional microcapsule;tolulene 2,4-diisocyanate;ethylene glycol;citronella oil

[References]

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Doane WM, Shasha BS, Rusell C, Am. Chem. Soc. Symp., 53, 74 (1970)
Fuyama H, Shinjo G, Tsuji K, J. Pesticide Sci., 9, 511 (1984)
Langer R, Chem. Eng. Commun., 6, 1 (1980)
Braun SD, Olson NF, Lindsay RC, J. Food Sci., 47, 1803 (1982)
Rosenberg M, Kopelman IJ, Talmon Y, J. Agric. Food Chem., 38, 1288 (1990)
Hong K, Park S, Mater. Chem. Phys., 58, 128 (1999)
Arshady R, Polym. Eng. Sci., 28, 1746 (1989)
Ohtsubo T, Tsuda S, Tsuji K, Polymer, 32, 2395 (1991)
Iwata M, McGinity JW, J. Microencapsul., 9, 201 (1992)
Wichert B, Rohdewald P, J. Microencapsul., 10, 195 (1993)
Lelah MD, Grasel TG, Pierce JA, Cooper LS, J. Biomed. Mater. Res., 20, 433 (1986)
Wittbecker EL, Morgan PW, J. Polym. Sci. A: Polym. Chem., 34(4), 521 (1996)
Arshdy R, Gorge MH, Polym. Eng. Sci., 33, 865 (1993)
Kohjiya S, Ikeda Y, Takesako S, Yamashita S, React. Polym., 15, 165 (1991)
Sharma K, Knutson K, Kim WS, J. Control. Release, 7, 197 (1988)
Fuyama H, Sinjo G, Tsuji K, J. Pesticide Sci., 9, 511 (1984)
Morgan PW, Chemtech., 9, 316 (1979)
Morgan PW, J. Macromol. Sci.-Macromol. Chem., 15, 683 (1981)
Arshady R, J. Microencapsul., 5, 101 (1988)
Kamiyama M, J. Appl. Polym. Sci., 27, 4477 (1982)
Jun JG, Polym.(Korea), 12(2), 161 (1988)
Zilberhoim R, Kopelman IJ, Talman Y, J. Food Sci., 51, 1307 (1986)
Kato T, "Hitoni Yashashii Senitokako," p. 482, Senisha, Tokyo (1995)
Park HI, Kim AK, Lee WE, Choi CN, J. Korean Soc. Dyers Finishers, 10, 37 (1998)
Arshady R, Polym. Eng. Sci., 30, 905 (1990)

[Referenced By]

[1] Nelson G, Rev. Prog. Coloration, 21, 72 (1991)

[2] Mccromick CL, Anderson KW, Hutchinson BH, Macromol. Chem. Phys., 22, 57 (1982)

[3] Langer R, Macromol. Chem. Phys., 23, 61 (1983)

[4] Doane WM, Shasha BS, Rusell C, Am. Chem. Soc. Symp., 53, 74 (1970)

[5] Fuyama H, Shinjo G, Tsuji K, J. Pesticide Sci., 9, 511 (1984)

[6] Langer R, Chem. Eng. Commun., 6, 1 (1980)

[7] Braun SD, Olson NF, Lindsay RC, J. Food Sci., 47, 1803 (1982)

[8] Rosenberg M, Kopelman IJ, Talmon Y, J. Agric. Food Chem., 38, 1288 (1990)

[9] Hong K, Park S, Mater. Chem. Phys., 58, 128 (1999)

[10] Arshady R, Polym. Eng. Sci., 28, 1746 (1989)

[11] Ohtsubo T, Tsuda S, Tsuji K, Polymer, 32, 2395 (1991)

[12] Iwata M, McGinity JW, J. Microencapsul., 9, 201 (1992)

[13] Wichert B, Rohdewald P, J. Microencapsul., 10, 195 (1993)

[14] Lelah MD, Grasel TG, Pierce JA, Cooper LS, J. Biomed. Mater. Res., 20, 433 (1986)

[15] Wittbecker EL, Morgan PW, J. Polym. Sci. A: Polym. Chem., 34(4), 521 (1996)

[16] Arshdy R, Gorge MH, Polym. Eng. Sci., 33, 865 (1993)

[17] Kohjiya S, Ikeda Y, Takesako S, Yamashita S, React. Polym., 15, 165 (1991)

[18] Sharma K, Knutson K, Kim WS, J. Control. Release, 7, 197 (1988)

[19] Fuyama H, Sinjo G, Tsuji K, J. Pesticide Sci., 9, 511 (1984)

[20] Morgan PW, Chemtech., 9, 316 (1979)

[21] Morgan PW, J. Macromol. Sci.-Macromol. Chem., 15, 683 (1981)

[22] Arshady R, J. Microencapsul., 5, 101 (1988)

[23] Kamiyama M, J. Appl. Polym. Sci., 27, 4477 (1982)

[24] Jun JG, Polym.(Korea), 12(2), 161 (1988)

[25] Zilberhoim R, Kopelman IJ, Talman Y, J. Food Sci., 51, 1307 (1986)

[26] Kato T, "Hitoni Yashashii Senitokako," p. 482, Senisha, Tokyo (1995)

[27] Park HI, Kim AK, Lee WE, Choi CN, J. Korean Soc. Dyers Finishers, 10, 37 (1998)

[28] Arshady R, Polym. Eng. Sci., 30, 905 (1990)