应用化学2017，Vol.34Issue(3)：269-275,7.DOI:10.11944/j.issn.1000-0518.2017.03.160214
新型两亲性聚酰胺的合成及性质
Synthesis and Properties of Novel Amphiphilic Polyamides
摘要
Abstract
To provide a theoretical basis for designing natural gas hydrate inhibitors and understanding the inhibition mechanism,and to analyze the nature and characteristics of the interactions between amphiphilic polyamides and water,water soluble poly (1,3-propylene citramide) was synthesized and based upon which,a new amphiphilic polymer was prepared by the modification with cyclohexyl isocyanate.The structure and properties of the product were characterized by proton nuclear magntic resonance spectroscopy,gel permeation chromatography and differential scanning calorimetry.The results show that the modified polymer forms nonfreezable bound water(NFBW) and the amount of the NFBW is twice the level in traditional kinetic gas hydrate inhibitors such as poly(N-vinylcaprolactam) or poly (N-vinylpyrrolidone).The specific heat capacities of water in the modified polymer increases remarkably by 36％.The hydrophobic interaction force between the polymer and water is enhanced,resulting in significant hydrophobic hydration restricted in the polymer.The modified polymers show strong hydrophobicity,leading to high levels of tightly bound water molecules and providing a necessary environment for increasing amount of NFBW.关键词
水溶性高分子/疏水作用/不可冰冻束缚水/比热容Key words
water soluble polymer/hydrophobic force/non-freezable bound water/specific heat capacity分类
化学化工引用本文复制引用
迟咏梅,徐松杰,曹玉廷,董坚..新型两亲性聚酰胺的合成及性质[J].应用化学,2017,34(3):269-275,7.基金项目
国家自然科学基金资助项目(21674063) （21674063）
浙江省自然科学基金资助项目(LY12E03001) （LY12E03001）
国家级大学生创新训练项目(201310349004)Supported by the National Natural Science Foundation of China(No.21674063),the Natural Science Foundation of Zhejiang Province(No.LY12E3001),the National Undergraduate Innovative Training Project(No.201310349004) （201310349004）
