含铬革屑制备N-月桂酰基多肽表面活性剂
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- 英文论文题名：Preparation of N-laurel acyl group polypeptide surfactant by chrome leather scraps
- 论文作者：刁屾 ; 栾俊 ; 张旖 ; 赵丹丹 ; 赵玖永 ; 薄其涛 ; 王全杰
- 英文论文作者：DIAOShen ; LUAN Jun ; ZHANG Yi ; ZHAO Dandan ; ZHAO Jiuyong ; BO Qitao ; WANG Quanjie ; College of Chemistry and Chemical Engineering ; Yantai University ; State Leather Technology Research Development Center
- 年：2016
- 作者机构：烟台大学化学化工学院;国家制革技术研究推广中心;
- 论文关键词：含铬革屑 ; 月桂酰氯 ; 多肽表面活性剂 ; 反应条件 ; 转化率
- 英文论文关键词：chrome leather ; lauroyl chloride ; polypeptide surfactant ; reaction condition ; conversion rate
- 会议召开时间：2016-07-27
- 会议录名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会摘要集
- 英文会议录名称：Abstracts of 2016 the 11th National Conference on Leather Chemicals & 21st Annual Convention of China Leather Science and Technology Commission
- 语种：中文
- 分类号：TQ423;TS59
- 学会代码：ZGHG
- 会议名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会
- 会议地点：中国山东济南
- 主办单位：中国皮革协会技术委员会、中国皮革协会皮革化工专业委员会、中国化工学会精细化工专业委员会
- 学会名称：中国化工学会
- 页数：1
- 文件大小：60k
- 原文格式：O
- 会议级别：全国
摘要
本文通过含铬废革屑的水解得到多肽水解液,将多肽水解液浓缩至波美度15 Be,与月桂酰氯通过肖顿鲍曼缩合反应制备N-月桂酰基复合多肽表面活性剂。通过设计单因素实验,以游离氨基转化率为实验指标,探索了缩合反应pH、反应温度、反应时间、月桂酰氯与复合多肽水解液的投料比、溶剂正己烷的用量等因素对反应体系游离氨基转化率的影响。当反应体系pH=9左右,反应温度30℃,反应时间3.5 h,月桂酰氯与游离氨基的摩尔比为1:1,正己烷与月桂酰氯体积比为2:1时,反应转化率可达到73.13%。
In this paper,the polypeptide hydrolysate was obtained by the hydrolyzation of chrome leather scraps.The concentration of the polypeptide hydrolysate was concentrated to 15 Be,which was used to reacted with lauroyl chloride by Schotten-Baumann condensation to synthesize the Nlaurel acyl group polypeptide surfactant.The influence factors on the reaction such as the pH of the condensation reaction,the condensation reaction temperature,the reaction time,the mole ratio of the lauroyl chloride and the polypeptide hydrolysate and the dosage of the solvent n-hexane were explored by using the free amino conversion rate as experimental indexes through the single factor experiment.And the optimum conditions were the pH 9,allowed to react for 3.5 h at 30 ℃,the lauroyl chloride/the polypeptide hydrolysate ratio 1:1 mol/mol,and hexane/lauroyl chloride ratio 2:1 vol/vol.under this conditions,the conversion rate could reached 73.13%.
In this paper,the polypeptide hydrolysate was obtained by the hydrolyzation of chrome leather scraps.The concentration of the polypeptide hydrolysate was concentrated to 15 Be,which was used to reacted with lauroyl chloride by Schotten-Baumann condensation to synthesize the Nlaurel acyl group polypeptide surfactant.The influence factors on the reaction such as the pH of the condensation reaction,the condensation reaction temperature,the reaction time,the mole ratio of the lauroyl chloride and the polypeptide hydrolysate and the dosage of the solvent n-hexane were explored by using the free amino conversion rate as experimental indexes through the single factor experiment.And the optimum conditions were the pH 9,allowed to react for 3.5 h at 30 ℃,the lauroyl chloride/the polypeptide hydrolysate ratio 1:1 mol/mol,and hexane/lauroyl chloride ratio 2:1 vol/vol.under this conditions,the conversion rate could reached 73.13%.
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