• Title/Summary/Keyword: alkyl imidazoline

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Analysis of Imidazoline Type Cationic Surfactants (Imidazoline계 양이온 계면활성제 분석)

  • Bak, Hong-Soon;Choi, Kyu-Yeol;Lee, Jae-Duk;Kim, Yeo-Kyung;Ahn, Ho-Jeong
    • Applied Chemistry for Engineering
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    • v.9 no.3
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    • pp.404-406
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    • 1998
  • Analysis for the imidazoline type cationic surfactants was performed by the gas chromatography(GC) and high performance liquid chromatography(HPLC). The composition of the alkyl chain distribution was investigated by GC after base/Acid hydrolysis of the imidazoline ring. The distribution of total alkyl chain was separated clearly by a Bondclone C18/NOVA-Pak C18 HPLC column using 50% acetonitrile in methanol containing 0.1M sodium perchlorate as a mobile phase. Alkyl chain distribution and average molecular weight of imidazoline type cationic surfactants were obtained based on these analytical methods. The agreement of results from GC and HPLC was good. The detection limit of imidazoline by HPLC method was 10ng without pretreatment.

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Preparation of Durable Softeners for Nylon Fiber Using Fatty Polyamide and Alkyl Imidazoline (지방산 폴리아미드 및 알킬이미다졸린을 이용한 나일론 섬유용 내구성 유연제의 제조)

  • Jung, Choong-Ho;Kim, Sung-Rae;Park, Hyong-Jin;Hahm, Hyun-Sik;Kim, Tae-Ok;Park, Hong-Soo
    • Journal of the Korean Applied Science and Technology
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    • v.19 no.4
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    • pp.291-296
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    • 2002
  • Fatty polyamide that gives softness, lubrication and bulky property and alkyl imidazoline that gives durable softness and antistatic property were synthesized. then, an O/W-type durable softener (DSN) was prepared by the emulsion of the synthesized fatty polyamide and alkyl imidazoline. Emulsion stability of the DSN was good, and the mixed HLB value was 11.2. From the measurement of softness, lubrication, antistatic property, bending resistance, and color fastness, it was proved that the prepared DSN was a good durable softener for nylon.

Studies on the Durable Softners (I) -Synthesis of Alkyl Imidazoline Derivatives- (내구성유연제에 관한 연구 (I) -알킬이미다졸린 유도체의 합성-)

  • Park, Hong-Soo;Kim, Young-Geun;Pyoun, Moo-Sil
    • Applied Chemistry for Engineering
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    • v.1 no.2
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    • pp.197-206
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    • 1990
  • 1, 2-Disubstituted imidazolines, such as 1-behenoyl-aminoethyl-2-heneicosylimidazoline(BHI), 1-behenoylbis(aminoethyl)-2-heneicosylimidazoline(BBI), and 1-behenoyltris(aminoethyl)-2-henoicosylimidazoline(BTI) were synthesized by reacting 3 kinds of polyalkylene polyamines with behenic acid to provide the softness to imidazoline ring.1, 2-Disubstituted imidazolinium chlorides, such as 1-behenoyl-aminoethyl-1-glycidyl-2-heneicosylimidazolinium chloride(BHIC), 1-behenoylbis(aminoethyl)-1-glycidyl-2-henoicosylimidazolinium chloride(BBIC), and 1-behenoyltris(aminoethyl)-1-glycidyl-2-henoicosylimidazolinium chloride(BTIC) were prepared by quaternizing 1, 2-disubstituted imidazoline compounds. The optimum condition for the preparation of BHI, BBI, and BTI was 8 hrs at $210^{\circ}C$. In the synthesis of BHIC, the completely quaternized product was obtained by reacting BHI-epichlorohydrin with 1:1.3 mole ratio, and mole ratios higher than 1:1.5 were required in the preparation of BBIC and BTIC, BHICS, BBICS, and BTICS softners form BHIC, BBIC, and BTIC was treated to acrylic fiber. It was found that were good softners as the softening property was measured.

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Studies on the Durable Softners (II) -Applications of Alkyl Imidazoline Derivatives as the Durable Softners- (내구성유연제에 관한 연구 (II) -알킬이미다졸린 유도체의 내구성유연제로서의 응용-)

  • Kim, Young-Geun;Park, Hong-Soo;Song, Kab Jun
    • Applied Chemistry for Engineering
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    • v.1 no.2
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    • pp.168-175
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    • 1990
  • Softners-BHICS, BBICS, and BTICS were prepared from 1, 2-disubstituted imidazoline compounds, such as 1-behenoylaminoethyl-1-glycidyl-2-heneicosylimidazolinium chloride(BHIC), 1-behenoylbis(aminoethyl)-1-glycidyl-2-heneicosylimidazolinium chloride (BBIC), and 1-behenoyltris(aminoethyl)-1-glycidyl-2-heneicosylimidazolinium chloride(BTIC), and treated to acrylic fiber. The measurements of softness, lubricating and antistatic properties showed that they have not only good softness and lubricating property but also a little antistatic property. Furthermore, the initial bending resistance for BBICS and BTICS was 5 grade, and remained 3~4 grade after 5 times washing. As results of these tests, they showed good softner effects having durability. The prepared softners were proved to be durable softner through a series of experimental results for washable properties of feeling by varying treating temperature and pH change.

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Studies on the Preparation of Durable Softners using Alkyl Imidazoline and Fatty Carbamide (알킬이미다졸린과 지방산 카르바미드를 이용한 내구성 유연제의 제조에 관한 연구)

  • Jung, Choong-Ho;Park, Hong-Soo;Kim, Young-Keun
    • Applied Chemistry for Engineering
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    • v.4 no.1
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    • pp.54-63
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    • 1993
  • Some emulsified 1, 2-disubstituted imidazolinium salts were synthesized by quaternization of 1, 2-disubstituted imidazoline which had been prepared by the reaction of dodecanoic acid with tetraethylenepentamine. 2-Docosamido-2'-docosanoyloxydiethylamine was prepared by the reaction of docosanoic acid with hydroxylethylethylenediamine. Then, some emulsified fatty carbamide salts were also synthesized by quaternization of fatty carbamide which had been prepared by the reaction of urea with the 2-docosamido-2'-docosanoyloxydiethylamine. Some softners were prepared by blending of these salts mentioned above. These softners were treated on acrylic fiber, then several properties were measured. As the results, softening and lubricating properties are good and a little antistatic property was observed. The synthesized softners were also proved as a durable softner by means of the several experiments : bending resistance test and measurements of feeling change with washing according to the pH changes. The surface structure of acrylic fibers treated with the softner were characterized by SEM.

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Preparation and Characterization of Durable Softeners for Acrylic Fiber (아크릴 섬유용 내구성 유연제의 제조 및 유연특성)

  • Hahm, Hyun-Sik;Kim, Young-Kook;Chung, Dong-Jin;Park, Hong-Soo
    • Journal of the Korean Applied Science and Technology
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    • v.20 no.1
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    • pp.1-7
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    • 2003
  • In order to prepare a softener, alkyl imidazoline salt, fatty carbamide salt, and fatty polyamide salt were synthesized first, and then the synthesized salts were blended. The prepared softeners were applied to acrylic fibers, and then several properties were tested. As a result, the prepared softeners show good softening and lubricating properties, and they also show a little antistatic property. Through bending resistance tests and measurements of feeling change of acrylic fibers treated with the softeners, it was proved that the prepared softeners are durable softeners.