Bulk ring-opening metathesis copolymerization of dicyclopentadiene and 5-ethylidene-2-norbornene: mixing rules, polymerization behaviors and properties

Huangfu, Fei; Li, Wanrong; Yang, Ziyi; You, Jane; Yang, Po

doi:10.1007/s10965-022-03268-z

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Increasing the crosslink density can improve the properties, so crosslinking agents or comonomers were used to enhance the performance. [35][36][37][38] Since acyclic olefins can undergo radical reactions, [39][40][41] the generated acyclic olefins of ROMP-derived PDCPD may also undergo radical reactions. That is, if we initiate ROMP and then the radical reactions, further radical reactions will occur in ROMP-derived PDCPD to generate enhanced PDCPD with higher crosslink density.…”

Section: Introductionmentioning

confidence: 99%

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Achieving performance‐advantaged polydicyclopentadiene via sequential ring‐opening metathesis polymerization and radical reaction

Zhan,

Huangfu,

Yang

2024

Polymer International

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Herein, we develop an approach to achieve performance‐advantaged polydicyclopentadiene (PDCPD) via sequential ring‐opening metathesis polymerization (ROMP) and radical reactions. Mixing dicyclopentadiene (DCPD), Grubbs' catalyst and radical initiator in one pot, then polymerizing firstly at low temperature by ROMP and initiating radical reactions at elevated temperature. Due to our strategy, the crosslink density of PDCPD increases, leading to outstanding performance. For instance, the glass transition temperature of ROMP prepared PDCPD is ca. 155–175 °C; whereas, the Tgs of PDCPD prepared by this strategy can be increased to 191 °C, and can be further enhanced to 216 °C after polymerization at 250 °C. We believe this can help researchers design and synthesize high performance ROMP‐derived polymers and apply PDCPD in harsh conditions.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

“…These produce low crosslink density resulting in decreasing the properties. Increasing the crosslink density can improve the properties, so crosslinking agents or comonomers were used to enhance the performance 35–38 …”

Section: Introductionmentioning

confidence: 99%

Achieving performance‐advantaged polydicyclopentadiene via sequential ring‐opening metathesis polymerization and radical reaction

Zhan,

Huangfu,

Yang

2024

Polymer International

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“…We also focus on generating ESO in polymeric materials. Ring-opening metathesis polymerization (ROMP) can rapidly convert monomers into polymers, which reduces the energy, making it a remarkable method for preparation of polymeric materials. − This contribution thereupon attempts to synthesize ESO-based thermosets via ROMP. Norbornene-functionalized ESO was synthesized from ESO first; then, it was converted into a thermoset.…”

Section: Introductionmentioning

confidence: 99%

Facile Approach for the Synthesis of Performance-Advantaged Degradable Bio-Based Thermoset via Ring-Opening Metathesis Polymerization from Epoxidized Soybean Oil

Zhan

Yang

2023

ACS Sustainable Chem. Eng.

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Design and synthesis of polymeric materials from sustainable feedstocks can partly mitigate environmental polymer pollution, and hence, it has received constant attention. This work aims to synthesize a degradable bio-based thermoset via ring-opening metathesis polymerization (ROMP) from epoxidized soybean oil (ESO). ESO was converted to norbornene-functionalized ESO first, and then, this functionalized ESO was rapidly generated to a thermoset via ROMP. The ESO-based thermoset exhibits promising thermal properties and mechanical performance, is available for fabrication of composites, and can be fully degraded into small molecules and oligomeric species under aqueous NaOH or KOH. Moreover, the functionalized ESO can copolymerize with norbornene to form partially degradable copolymers. This approach can be used to synthesize degradable vegetable oil-based thermosets for various applications and for environmental sustainability.

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Upgrading of thermosets and composites via sequential frontal ring-opening metathesis polymerization and radical reactions

Zhan,

Yang

2024

J Mater Sci

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Bulk ring-opening metathesis copolymerization of dicyclopentadiene and 5-ethylidene-2-norbornene: mixing rules, polymerization behaviors and properties

Cited by 5 publications

References 39 publications

Achieving performance‐advantaged polydicyclopentadiene via sequential ring‐opening metathesis polymerization and radical reaction

Achieving performance‐advantaged polydicyclopentadiene via sequential ring‐opening metathesis polymerization and radical reaction

Facile Approach for the Synthesis of Performance-Advantaged Degradable Bio-Based Thermoset via Ring-Opening Metathesis Polymerization from Epoxidized Soybean Oil

Upgrading of thermosets and composites via sequential frontal ring-opening metathesis polymerization and radical reactions

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