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范德华作用和静电作用下的二元粒子自组装
  • ISSN号：1674-0068
  • 期刊名称：《化学物理学报》
  • 分类：O[理学]
  • 作者机构：[1]天津大学理学院化学系与天津化学化工协同创新中心,天津300072, [2]天津大学化工学院高分子科学与工程系,天津300072
  • 相关基金：V. ACKNOWLEDGMENTS The computer simulation is performed on the High Performance Computing Center of Tianjin University,China. This work was supported by the National Natural Science Foundation of China （No.21274107 and No.91127046）. We thank Prof. Bin Zhang, Rui Xu, Bo Du, and Dr. Zi-lu Wang in Tianjin University for helpful discussions.
作者： 李燕[1], 李华平[2], 何学浩[1]
关键词： 排斥作用, 自组装, 二元粒子, 粒子动力学, 相图, Repulsive interaction, Self-assembly, Binary particles, Particle dynamics Phase diagrams
中文摘要：

采用简单粗粒化粒子模型，通过郎之万动力学模拟研究了具有范德华作用和静电作用的二元粒子自组装．研究发现，通过改变粒子尺寸和粒子间作用强度，二元粒子能够自发形成各种聚集结构，如球形、堆叠层状与管状结构．利用两亲性分子或两嵌段聚合物自组装理论，解释了二元粒子聚集结构的形成规律．当向溶液中加入反电荷离子时，模拟表明粒了聚集结构在相图中的分布出现了明显偏移．

英文摘要：

Nanoparticles with competitive interactions in solution can aggregate into complex structures. In this work, the synergistic self-assembles of binary particles with electrostatic and van der Waals interactions are studied with the particle Langevin dynamics simulation using a simple coarse-grained particle model. Various aggregations such as spherical, stacking-disk and tube structures are observed by varying the particles size and the interaction strength. The aggregation structures are explained with the packing theories of amphiphilic molecules in solution and dibolck copolymers in bulk. When the opposite ions are introduced into solution, the distribution of structures in the phase diagram appears an obvious offset. The simulation result is helpful to deeply understand the formation mechanism of complex nanostructures of multicomponent particles in solution.

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期刊信息
  • 《化学物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国物理学会
  • 主编：杨学明
  • 地址：合肥中国科学技术大学
  • 邮编：230026
  • 邮箱：cjcp@ustc.edu.cn
  • 电话：0551-3601122
  • 国际标准刊号：ISSN：1674-0068
  • 国内统一刊号：ISSN：34-1295/O6
  • 邮发代号:26-62
  • 获奖情况:
  • 1998年获安徽省优秀科技期刊一等奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:4282