Some aspects of the thermal stability of linear polydicyclopentadiene (L-PDCPD)

Dimonie, Doina; Dimonie, M.; Stoica, Stela; Munteanu, V.; Abadie, M. J. M.

doi:10.1016/s0141-3910(99)00108-1

Cited by 14 publications

(15 citation statements)

References 4 publications

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“…It was postulated that based on the inherent unsaturation in linear DCPD, the polymer would cross‐link in a thermally triggered annulation process and hence, improve the thermal stability. This cross‐linking process takes place between 180 °C and 200 °C . We speculated that the inhibited Ru‐alkylidene end groups, which should be still present in the linear PDCPD 4 , may cause cross‐linking at significantly lower temperatures than 200 °C based on the ROCM mechanism as presented in Scheme .…”

Section: Methodsmentioning

confidence: 99%

“…Much less investigated are materials from linear PDCPD, the polymer formed by exclusively ring‐opening the reactive CC double bond of DCPD. Only a handful reports have described the synthesis of linear PDCPD via ROMP using either ill‐defined tungsten and molybdenum initiators, well‐defined, but low reactive titanium catalysts or, as described very recently, using a metal‐free olefin metathesis catalytic system . In these cases, the ROMP reactions were slow and the synthesized linear PDCPD did not exhibit a high degree of molecular weight control.…”

Section: Methodsmentioning

confidence: 99%

“…We compared the thermal stability of the isolated polymers 3 and 4 using thermogravimetric analysis (TGA) and differential thermogravimetry (DTG) under nitrogen (Table ). Linear PDCPD has been reported to exhibit a remarkable thermal stability, similar to cross‐linked PDCPD . It was postulated that based on the inherent unsaturation in linear DCPD, the polymer would cross‐link in a thermally triggered annulation process and hence, improve the thermal stability.…”

Section: Methodsmentioning

confidence: 99%

“…Linear PDCPD has been reported to exhibit a remarkable thermal stability, similar to cross-linked PDCPD. 13,14 It was postulated that based on the inherent unsaturation in linear DCPD, the polymer would cross-link in a thermally triggered annulation process and hence, improve the thermal stability. This cross-linking process takes place between 180 8C and 200 8C.…”

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confidence: 99%

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Synthesis and thermal properties of linear polydicyclopentadiene via ring‐opening metathesis polymerization with a third generation grubbs‐type ruthenium‐alkylidene complex

Steese

Barvaliya

Poole

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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Linear polydicyclopentadiene was produced with a third generation Grubbs‐type Ru–alkylidene complex. At high catalyst loadings, the polymer shows a portion of the polymer with a low degree of branching owing to secondary ROCM as seen in the SEC analysis. Distinct signals are observed via low angle scattering analysis for polymers with twice or another multiple of the average molecular weight of the linear polymer hence strongly affecting the controlled‐living nature of the polymerization.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Synthesis and thermal properties of linear polydicyclopentadiene via ring‐opening metathesis polymerization with a third generation grubbs‐type ruthenium‐alkylidene complex

Steese

Barvaliya

Poole

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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“…[1][2][3] One of the possible methods to minimize effective end product costs is to reduce the quantities of polymeric material required by incorporating lignocellulosic filler into PLA. [4] In wood industries, large amounts of sawdust are always found as waste. Using sawdust as reinforcing fillers for polymer composites is an alternative way to add value to sawdust.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, Thermal, and Morphological Properties of Sawdust/Poly(lactic acid) Composites: Effects of Alkali Treatment and Poly(butylene adipate‐co‐terephthalate) Content

Nomai

Jarapanyacheep

Jarukumjorn

2015

Macromolecular Symposia

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Summary: Sawdust/poly(lactic acid) (PLA) composites were prepared using a melt blending process. Sawdust content was 30 wt%. The effects of alkali treatment and poly(butylene adipate-co-terephthalate) (PBAT) content on mechanical, thermal, and morphological properties of the composites were investigated. With the addition of sawdust into PLA, tensile modulus increased whereas tensile strength, elongation at break, impact strength, and thermal stability decreased. Alkali treatment improved the interfacial adhesion between sawdust and PLA matrix leading to the enhancement in mechanical properties and thermal stability of the composites. PBAT was used to improve toughness of the composites. PBAT content was varied as 10, 20, and 30 wt%. With increasing PBAT content, elongation at break and impact strength of the composites increased whereas tensile strength and tensile modulus decreased due to the presence of soft elastomeric phase that exhibited high flexibility and toughness. Additionally, thermal stability of the composites improved with increasing PBAT content. SEM micrographs revealed enhanced filler-matrix interfacial adhesion and some features of ductile fracture in the composites toughened with PBAT.

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Recycling of Polydicyclopentadiene Enabled with N‐Coordinated Boronic Ester Bonds

Hu,

Gao,

Teng

et al. 2024

Macromol. Rapid Commun.

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In this contribution, we reported the transformation of polydicyclopentadiene (PDCPD) from thermoset into vitrimer. First, two N‐coordinated diboronic diols were successfully synthesized via the reaction of N,N,N‐tri(2‐hydroxyethyl)amine and/or N,N,N“,N”‐tetrakis(2‐hydroxyethyl)ethylene diamine with 4‐(hydroxymethyl) phenylboronic acid and then they were transformed into two N‐coordinated cyclic boronic diacrylates. The latter two dienes carrying electron‐withdrawing substituents were used for the ring opening insertion metathesis copolymerization (ROIMP) of dicyclopentadiene to afford the crosslinked PDCPD. In the crosslinked PDCPD networks, N‐coordinated cyclic boronic bonds were integrated. It was found that the as‐obtained PDCPD networks displayed the excellent reprocessing properties. In the meantime, the fracture toughness was significantly improved. Owing to the inclusion of N‐coordinated cyclic boronic ester bonds, the modified PDCPDs had the thermal stability much superior to plain PDCPD. The results reported in this work demonstrated that PDCPD can successfully be transformed into the vitrimers via the introduction of N‐coordinated cyclic boronic ester bonds.This article is protected by copyright. All rights reserved

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Some aspects of the thermal stability of linear polydicyclopentadiene (L-PDCPD)

Cited by 14 publications

References 4 publications

Synthesis and thermal properties of linear polydicyclopentadiene via ring‐opening metathesis polymerization with a third generation grubbs‐type ruthenium‐alkylidene complex

Synthesis and thermal properties of linear polydicyclopentadiene via ring‐opening metathesis polymerization with a third generation grubbs‐type ruthenium‐alkylidene complex

Mechanical, Thermal, and Morphological Properties of Sawdust/Poly(lactic acid) Composites: Effects of Alkali Treatment and Poly(butylene adipate‐co‐terephthalate) Content

Recycling of Polydicyclopentadiene Enabled with N‐Coordinated Boronic Ester Bonds

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