광그라프팅에 의한 폴리프로필렌 부직포의 복합기능화 가공(II) - 스티렌의 그라프트 반응 및 암모니아 흡착거동

김상률; 최창남; Sang Yool Kim; Chang Nam Choi

Polymer(Korea), Vol.25, No.5, 642-648, September, 2001

Multi-functional Finish of Polypropylene Nonwoven by Photo-induced Graft Polymerization (II) - Grafting of Styrene and Its Ammonia Adsorption Behavior

김상률^†, 최창남¹

목포대학교 의류학과
¹전남대학교 응용화학부

Sang Yool Kim^†, and Chang Nam Choi¹

Department of Clothing and Textile, Mokpo National Univ., Chonnam 534-729, Korea
¹Faculty of Applied Chemistry, Chonnam National Univ., Kwangju 500-757, Korea

E-mail:

초록

암모니아 흡착제를 제조하기 위하여 먼저 광 (자외선)조사법으로 스티렌을 폴리프로필렌 부직포에 그라프트 중합시키고, 이를 술폰화한 다음에 금속이온과 반응시켜 금속 착체를 제조하였다. 스티렌 농도가 증가할수록 그라프트율은 증가하였으며, 반응시간이 길어질수록 그라프트율은 증가하였다. 한편 제조된 각종 시료의 암모니아 흡착 능력은 치환된 술폰산기의 함량, 흡착시간 및 암모니아 기체 압력이 증가할수록 증가하였으며, 술폰산기의 함량이 4.25 mmol H(+)/g인 시료의 경우에 6.51 mmol/g의 흡착량을 나타내었다. 금속이온을 착물로 한 시료는 착물화 전의 시료에 비해 흡착능이 우수하였으며, Co(+2)를 착물로 한 경우에 9.90 mmol/g 의 암모니아 흡착능을 나타내어, 기존의 활성탄이나 실리카겔보다 효과가 우수하였다.

An attempt was made to synthesize an ammonia adsorbent by the photo-in-duced grafting of styrene (St) onto polypropylene (PP) nonwoven using benzoin ethyl ether (BEE) as a photosensitizer with urea and trimethylol propane triacrylate in methanol medium. As styrene concentration was increased, the graft yield was increased. It was also found that the graft yield increased with reaction time. The polypropylene grafted with styrene (PP-g-St) was sulfonated by chlorosulfonic acid in dichloroethane and complexed with several metalion, such as Co(+2), Ni(+2), Cu(+2), Zn(+2). The amount of ammonia gas adsorbed by these sample was dependent on the degree of sulfonation, adsorption time, and ammonia gas pressure. The adsorption capacity of ammonia gas by the sulfonated PP-g-St (SPP-g-St) nonwoven with 4.25 mmol H(+)/g was 6.51 mmol/g. Metal ion complexed SPP-g-St nonwovens had higher adsorption capacity than SPP-g-St nonwoven and the Co(+2) complexed SPP-g-St showed 9.90 mmol NH3/g, which was much higher than that of active carbon of silica gel.

Keywords:photo(ultraviolet) irradiation grafting;polypropylene;ammonia adsorption;sulfonation;metal-ion complexation.

[References]

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[Referenced By]

[1] Choi CN, Hong SH, J. Korean Fiber Soc., 33, 1164 (1996)

[2] Yao ZP, Ranby B, J. Appl. Polym. Sci., 41, 1459 (1990)

[3] Jahagirdar CJ, Venkatakrishnan S, J. Appl. Polym. Sci., 41, 117 (1990)

[4] Kim KJ, J. Appl. Polym. Sci., 32, 6017 (1986)

[5] Koo K, Wakida T, Sen-I Gakkaishi, 48, 57 (1992)

[6] Garnett JL, Jankiewicz SV, Long MA, J. Polym. Sci. C-Polym. Lett., 24, 125 (1986)

[7] Uyama Y, Ikada Y, J. Appl. Polym. Sci., 36, 1087 (1988)

[8] Zhang PY, Randy B, J. Appl. Polym. Sci., 43, 621 (1991)

[9] Garnett JL, Radiat. Phys. Chem., 14, 79 (1979)

[10] Sakai Y, Rao VL, Sadaoka Y, Matsuguchi M, Polym. Bull., 18, 501 (1987)

[11] Kubota H, Ujita S, J. Appl. Polym. Sci., 56(1), 25 (1995)

[12] Kubota H, Shigehisa Y, J. Appl. Polym. Sci., 56(2), 147 (1995)

[13] Park JS, Nho YC, Polym.(Korea), 21(2), 325 (1997)