journal article·2023-11-10

Self-Curing Phthalonitrile Resin with Disulfide Bond as the Curing Group

Jianghuai Hu, Yu Pu, Rongtao Zhou, Xian He, Ke Zeng, Gang Yang

ACS Applied Polymer Materials· Volume 5· Issue 11
Publisher page

Abstract

To further investigate the presence of a radical mechanism in the curing process of phthalonitrile resins, a conventional radical initiation unit (disulfide segment) was introduced into phthalonitrile resins for the first time. A disulfide-bond-containing phthalonitrile monomer (DPBPN) was successfully synthesized. Its self-curing reaction could be promoted by disulfide segments in the precursor. Rheological measurements and differential scanning calorimetry showed that DPBPN exhibited a low melting point (124.5 °C) and a wide processing window (120 °C). Infrared spectroscopy confirmed the formation of isoindoline, triazine, and phthalocyanine structures in the product. Thermal gravimetric analysis and dynamic mechanical analysis suggested the outstanding thermal stability and high glass transition temperature ( T g ) of the cured resin with a moderate curing process.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Epoxy Resin Curing Processes · Synthesis and properties of polymers · Advanced Polymer Synthesis and Characterization

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, PR China

Funding

Natural Science Foundation of Sichuan Province · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China

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