巯基改性聚丙烯腈纤维的制备与表征
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摘要
以L-半胱氨酸盐酸盐(L-CMHC)为改性试剂,对聚丙烯腈(PAN)纤维进行接枝改性,合成了一种新型含巯基纤维(cys-PAN)。探讨了反应温度、反应时间、L-CMHC的质量浓度、PAN纤维与L-CMHC的质量比等因素对纤维合成的影响,得出cys-PAN纤维的优化合成条件为:反应温度125～130℃、反应时间4.5h、L-CMHC的质量浓度0.04g/mL、PAN纤维与L-CMHC的质量比1∶0.5～1∶1。红外光谱、拉曼光谱等结构表征结果证明,巯基被成功接枝在PAN纤维骨架上;热失重分析结果表明,合成的纤维具有良好的热稳定性;间接碘量法测得优化条件下合成的cys-PAN纤维的巯基含量为1.56mmol/g。
A novel fiber material(cys-PAN) with L-Cysteine monohydrochloride(L-CMHC) as modification reagent and polyacrylonitrile(PAN) fiber as starting material had been prepared successfully.The effects of temperature,time,mass concentration of L-CMHC,mass ratio between PAN fiber and L-CMHC were investigated through single-factor experiments.The results showed that the optimum reaction conditions were the reaction temperature 125-130℃,reaction time 4.5h,mass concentration of L-CMHC 0.04g/mL and mass ratio between PAN fiber and L-CMHC 1∶0.5-1∶1.FT-IR and Raman spectra indicated that the as-prepared fiber was a thiol-containing fiber,and TGA revealed it possess good thermal stability.The measured thiol content in cys-PAN by indirect iodimetry was 1.56mmol/g.
A novel fiber material(cys-PAN) with L-Cysteine monohydrochloride(L-CMHC) as modification reagent and polyacrylonitrile(PAN) fiber as starting material had been prepared successfully.The effects of temperature,time,mass concentration of L-CMHC,mass ratio between PAN fiber and L-CMHC were investigated through single-factor experiments.The results showed that the optimum reaction conditions were the reaction temperature 125-130℃,reaction time 4.5h,mass concentration of L-CMHC 0.04g/mL and mass ratio between PAN fiber and L-CMHC 1∶0.5-1∶1.FT-IR and Raman spectra indicated that the as-prepared fiber was a thiol-containing fiber,and TGA revealed it possess good thermal stability.The measured thiol content in cys-PAN by indirect iodimetry was 1.56mmol/g.
引文
[1]F M Peng.Encyclopedia of Polymer Science and Engineering.Wiley,New York,1985,426.
[2]田振邦,黄伟庆,黄做华等.合成纤维,2007,11:22～25.
[3]何钦雅,朱赛,赵亮等.河南科学,2010,28(7):783～785.
[4]X P Zhu,S D Alexandratos.Ind.Eng.Chem.Res.,2005,44:8605～8610.
[5]黄伟庆,赵亮,田振邦等.高科技纤维与应用,2010,35(3):31～35
[6]J Aguado,J M Arsuaga,A Arencibia.Ind.Eng.Chem.Res.,2005,44(10):3665～3671.
[7]魏庆珣,郭雅先,王胜天等.离子交换与吸附,1989,5(4):246～250.
[8]M Q Yu,W Tian,D W Sun et al.Anal.Chim.Acta,2001,428:209～218.
[9]张华,逯阳.天津工业大学学报,2005,24(6):1～4.
[10]罗永才,木成义.环境科学,1986,7(1):37～40.
[11]俞穆清,刘桂琴.环境科学,1986,7(3):71～76.
[12]张新艳,王起超,张少庆等.环境科学学报,2009,29(10):2134～2140.
[13]N F Ma,Y Yang,S X Chen et al.J.Hazard.Mater.,2009,171:288～293.
[14]孙小莉,曾庆轩,冯长根.高分子学报,2009,(2):245～249.
[15]朱自莹,顾仁敖,陆天虹.拉曼光谱在化学中的应用.沈阳:东北大学出版社,1998:295～307.
[16]X Y Zhang,Q C Wang.J.Hazard.Mater.,2009,168:1575～1580.
[17]T Gebremedhin-Haile,M T Olguín,M Solache-Ríos et al.Water,Air,&Soil Pollution,2003,148:179～200
[2]田振邦,黄伟庆,黄做华等.合成纤维,2007,11:22～25.
[3]何钦雅,朱赛,赵亮等.河南科学,2010,28(7):783～785.
[4]X P Zhu,S D Alexandratos.Ind.Eng.Chem.Res.,2005,44:8605～8610.
[5]黄伟庆,赵亮,田振邦等.高科技纤维与应用,2010,35(3):31～35
[6]J Aguado,J M Arsuaga,A Arencibia.Ind.Eng.Chem.Res.,2005,44(10):3665～3671.
[7]魏庆珣,郭雅先,王胜天等.离子交换与吸附,1989,5(4):246～250.
[8]M Q Yu,W Tian,D W Sun et al.Anal.Chim.Acta,2001,428:209～218.
[9]张华,逯阳.天津工业大学学报,2005,24(6):1～4.
[10]罗永才,木成义.环境科学,1986,7(1):37～40.
[11]俞穆清,刘桂琴.环境科学,1986,7(3):71～76.
[12]张新艳,王起超,张少庆等.环境科学学报,2009,29(10):2134～2140.
[13]N F Ma,Y Yang,S X Chen et al.J.Hazard.Mater.,2009,171:288～293.
[14]孙小莉,曾庆轩,冯长根.高分子学报,2009,(2):245～249.
[15]朱自莹,顾仁敖,陆天虹.拉曼光谱在化学中的应用.沈阳:东北大学出版社,1998:295～307.
[16]X Y Zhang,Q C Wang.J.Hazard.Mater.,2009,168:1575～1580.
[17]T Gebremedhin-Haile,M T Olguín,M Solache-Ríos et al.Water,Air,&Soil Pollution,2003,148:179～200