4.7 Article

Fabrication of Highly Fluorescent Temperature-Sensitive Composites Based on a Synergistic Molecular Mechanism between Hydrogen-Bonded/AIEgen-Modified Conjugated Polymers and Polymer Substrates

Journal

ACS APPLIED POLYMER MATERIALS
Volume 4, Issue 12, Pages 9025-9039

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsapm.2c01386

Keywords

fluorescent temperature-sensitive composites; AIEgen; hydrogen bonding; conjugated polymers; synergistic molecular mechanism

Funding

  1. National Natural Science Foundation of China [21805133]
  2. Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX21_0456]
  3. SICAM Fellowship from the Jiangsu National Synergetic Innovation Center for Advanced Materials
  4. Jiangsu National Synergetic Innovation Center for Advanced Materials
  5. Jiangsu innovative and entrepreneurial talent plan

Ask authors/readers for more resources

The mechanism of intermolecular interaction between conjugated polymers and a polymer matrix is crucial for the development of highly sensitive fluorescent temperature-sensing materials. By combining aggregation-induced emission luminogens and hydrogen bonding, a synergistic molecular mechanism has been proposed and applied to the development of such materials. A series of highly sensitive composites, suitable for different temperature ranges and scenarios, has been prepared through molecular structure engineering.
The mechanism of intermolecular interaction between conjugated polymers (CPs) and a polymer matrix plays a decisive role in understanding and developing highly sensitive fluorescent temperature-sensing (FTS) materials. Therefore, a molecular mechanism based on a synergistic molecular mechanism, which is assisted by the interaction of an aggregation-induced emission luminogen (AIEgen) and hydrogen bonding between CPs and the matrix, is proposed and applied to the development of FTS composite materials. A series of highly sensitive FTS composites, which can be applied to different temperature ranges and scenarios, have been prepared from the perspective of molecular structure engineering based on an AIEgen-and uracil-group-modified CPs/polymer matrix composite system. In addition, the effectiveness and universality of the synergistic molecular mechanism can be proved by changing the molecular structure of optical CPs and the types of polymer substrates. Therefore, the synergistic molecular mechanism as a guide for molecular structure design can be proved to become a promising method for the preparation of highly sensitive FTS composite materials.

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