Statistical Physics of Polymer and Related Systems

聚合物及相关系统的统计物理

• 批准号: 9015791
• 负责人: Nigel Goldenfeld
• 金额: $ 33.6万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9015791&HistoricalAwards=false
• 关键词: Statistical; Physics; Polymer; Related; Systems

Research will be conducted on mesoscopic descriptions of non- equilibrium phenomena associated with materials science. Models of non-equilibrium systems will be studied in terms of discrete space- time maps, which permit efficient computational tools to be developed. Using this approach dynamical scaling properties will be studied using both numerical and analytical techniques, including renormalization group techniques. Specific systems to be studied within the scope of the grant include: spinodal decomposition of polymeric systems, including hydrodynamics; dynamics of crystal surface reorganization; the effect of coexisting phase ordering on spinodal decomposition; polymer crystal growth; dynamical scaling at the onset of gelation; and, vulcanization.

将研究与材料科学相关的非平衡现象的介观描述。 非平衡系统模型将根据离散时空图进行研究，这使得开发有效的计算工具成为可能。 使用这种方法，将使用数值和分析技术（包括重正化群技术）来研究动态标度特性。 资助范围内要研究的具体系统包括： 聚合物系统的旋节线分解，包括流体动力学； 晶体表面重组动力学；共存相序对旋节线分解的影响；聚合物晶体生长；凝胶化开始时的动态缩放；以及，硫化。