用荧光斑点模型探测溶液中的聚合物链动力学。

Polymer chain dynamics in solution probed with a fluorescence blob model.

作者信息

Duhamel Jean

机构信息

Institute of Polymer Research, Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada.

出版信息

Acc Chem Res. 2006 Dec;39(12):953-60. doi: 10.1021/ar068096a.

DOI:10.1021/ar068096a

PMID:17176034

Abstract

This Account describes a new fluorescence tool that characterizes the chain dynamics of polymers in solution. This new tool, coined the fluorescence blob model (FBM), is employed to analyze the fluorescence decays of polymers randomly labeled with pyrene. The FBM yields the number of monomers making up a blob (Nblob) where a blob is the volume probed by an excited pyrene. By establishing a relationship between Nblob and the lifetime of pyrene used as an internal clock, the FBM provides previously unavailable information about polymer chain dynamics and opens new venues of research, which are described in this Account.

摘要

本综述介绍了一种用于表征溶液中聚合物链动力学的新型荧光工具。这种新工具被称为荧光团簇模型（FBM），用于分析随机标记芘的聚合物的荧光衰减。FBM得出构成一个团簇的单体数量（Nblob），其中一个团簇是被激发的芘所探测的体积。通过建立Nblob与用作内部时钟的芘的寿命之间的关系，FBM提供了有关聚合物链动力学的前所未有的信息，并开辟了新的研究途径，本综述对此进行了描述。