原子与分子物理学报2018，Vol.35Issue(2)：307-313,7.DOI:10.3969/j.issn.1000-0364.2018.02.023
水蒸气诱导两性离子聚合物刷的构象转变
Switching of polyzwitterion brushes by water vapor
摘要
Abstract
We presented a theory to study switching of polyzwitterion brushes by water vapor.Our theory model takes account of polyzwitterion-water(P-W)hydrogen bonds and zwitterions complex.We found that P-W hydrogen bonds become a key element in inducing swelling of polyzwitterion brushes.Our results indicate, be-cause of zwitterionic complexes,the polyzwitterionic brushes take up less water molecules, which lead to a de-cline in water volume fraction in polyzwitterion brushes.We also investigated the phase diagram of polyzwitterion brushes.It is clearly indicated that the P-W hydrogen bonds are key elements in inducing swelling of polyzwit-terion brushes,and water vapor inducing polyzwitterion brushes swell monotonically.On basis of our theory ap-proach,we can predict that,because of P-W of hydrogen bonds, polyzwitterion brushes can adsorb water va-por;When the grafting density is too large,zwitterionic hybridization will lead to a zwitterionic complexe network formation of 3D polyzwitterion brushes.关键词
水蒸气/两性离子聚合物刷/氢键/构象转变Key words
Water vapor/Polyzwitterion brushes/Hydrogen bonding/Switching分类
数理科学引用本文复制引用
赵新军,李祯..水蒸气诱导两性离子聚合物刷的构象转变[J].原子与分子物理学报,2018,35(2):307-313,7.基金项目
新疆自然科学基金联合基金(2015211C298) （2015211C298）
