Ring-opened metathesis polymers from cyclohexenylnorbornene and related Diels-Alder adducts of cyclopentadiene with vinyl and divinyl cyclohydrocarbons

Kelsey, Donald R.; Chuah, Hoe H.; Ellison, Robert H.; Handlin, D. L.; Scardino, Betty M.

doi:10.1002/(sici)1099-0518(199710)35:14<3049::aid-pola25>3.0.co;2-h

Cited by 17 publications

(10 citation statements)

References 3 publications

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“…Furthermore, the nanoporous structure was preserved after heating to 130 °C according to SEM. However, substantial pore collapse was evident after annealing the nanoporous monoliths at 150 °C for 1 h, presumably due to the softening of the polyDCPD-containing matrix . The solvent resistibility of these monoliths was examined by immersion in THF, where the THF-swollen monoliths were soaked in methanol, allowing for plasticization of the polyDCPD-containing matrix before drying, and SEM analysis confirms preservation of the nanoporous structure (Figure S13c in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Mechanically and Thermally Robust Ordered Nanoporous Monoliths Using Norbornene-Functional Block Polymers

Liang

2009

Macromolecules

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A norbornene-functional styrene was synthesized and copolymerized with styrene, and monomer reactivity ratios were calculated in a controlled radical copolymerization. Polylactide-b-poly (norbornenylethylstyrene-s-styrene) (PLA-b-P(N-S)) block polymers were produced by a reversible addition-fragmentation chain transfer polymerization technique using a PLA-based macro chain transfer agent and fully characterized using conventional techniques. Blends composed of this block copolymer, dicyclopentadiene (DCPD), and a metathesis catalyst were waxy materials that formed ordered structures containing cylindrical PLA nanodomains in a composite DCPD/P(N-S) matrix. These composite materials were pressed in a channel die to align the cylindrical domains and were cured by a ring-opening metathesis mechanism at elevated temperatures. Removal of the PLA from the resulting monoliths by mild basic etching resulted in nanoporous monoliths with cylindrical channels. The nanoporous materials were characterized by small-angle X-ray scattering, scanning electron microscopy, and N 2 adsorption experiments. The nanoporous monoliths were thermally stable up to about 130 °C and exhibited remarkable mechanical strength that was comparable to pure polyDCPD.

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Section: Resultsmentioning

confidence: 99%

Mechanically and Thermally Robust Ordered Nanoporous Monoliths Using Norbornene-Functional Block Polymers

Liang

2009

Macromolecules

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“…After the polymerization, the resultant materials were cured at 120°C for 2 h and then at 150°C for 2 h to obtain the final polyDCPD composite. All samples were subjected to characterization within 24 h to minimize the effect of surface oxidation . The preparation of a ‐MWCNT/polyDCPD and MOGO/polyDCPD is followed by the procedure mentioned above.…”

Section: Methodsmentioning

confidence: 99%

Morphological effect of fillers on graphite reinforced polydicyclopentadiene based composites

Zheng

2014

Polymer Composites

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Graphite reinforced polydicyclopentadiene (polyDCPD) composites were synthesized via the in situ ring‐opening metathesis polymerization (ROMP) of DCPD with vapor‐grown carbon fiber (VGCF), acidified multiwall carbon nanotube (a‐MWCNT), and mildly oxidized graphene oxide (MOGO) as distinctive reinforcing fillers, respectively. We studied the morphological effect of the fillers on the mechanical and thermal properties of graphite/polyDCPD composites. Mechanical property tests showed that the addition of VGCF greatly strengthened the tensile strength, the introduction of a‐MWCNT dramatically extended the elongation at break, whereas the incorporation of MOGO enhanced both performances of the resulting composites. Impact tests showed that the maximum mechanical performances of a‐MWCNT/polyDCPD and MOGO/polyDCPD composites both were got with 0.4 wt% of fillers (a‐MWCNT and MOGO) loading. Meanwhile, all of the reinforced composites exhibited increased thermal stabilities compared with the unfilled polyDCPD, confirmed by increased Tgs and thermal decomposition temperatures at 5 wt% weight loss. POLYM. COMPOS., 35:1918–1925, 2014. © 2014 Society of Plastics Engineers

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“…The mixtures were poured into a mould and the pre‐cured PPBMI/polyDCPD blend was formed via ROMP. After ROMP, the resulting materials were further cured at 120°C for 2 h, 150°C for 2 h, 180°C for 2 h, and 200°C for 2 h. All samples were subjected to characterization within 24 h to minimize the effect of surface oxidation …”

Section: Methodsmentioning

confidence: 99%

Preparation and properties of high performance phthalide‐containing bismaleimide reinforced polydicyclopentadiene

Tao

et al. 2014

J of Applied Polymer Sci

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A series of phenolphthalein-containing bismaleimide (PPBMI) reinforced polydicyclopentadiene blends (PPBMI/polyDCPD) were prepared via the ring-opening metathesis polymerization of DCPD in the presence of PPBMI. The crosslinked networks between PPBMI and polyDCPD backbones resulted in the reinforced structures. The curing behavior, thermal, and mechanical properties were investigated. Differential scanning calorimetry investigations showed the samples exhibit similar singular exothermic peak, and the exothermic peak of the PPBMI/polyDCPD blends slightly shifted to a lower temperature direction compared with the unfilled polyDCPD, meanwhile, the exothermic peak of the PPBMI/polyDCPD blends slightly shifts back to a higher temperature direction with the PPBMI content increased. Both dynamic mechanical analysis and thermo gravimetric analysis measurements revealed the optimal thermal performance of PPBMI/poly DCPD was obtained with 20 wt % loading of PPBMI. In addition, while PPBMI content increased, the weight loss peak at 100-200 C disappeared and the temperature of maximum rate of decomposition (T d,max ) increased. Moreover, bending tests showed the best mechanical performance was achieved at 5 wt % loading of PPBMI in blends.

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Ring-opened metathesis polymers from cyclohexenylnorbornene and related Diels-Alder adducts of cyclopentadiene with vinyl and divinyl cyclohydrocarbons

Cited by 17 publications

References 3 publications

Mechanically and Thermally Robust Ordered Nanoporous Monoliths Using Norbornene-Functional Block Polymers

Mechanically and Thermally Robust Ordered Nanoporous Monoliths Using Norbornene-Functional Block Polymers

Morphological effect of fillers on graphite reinforced polydicyclopentadiene based composites

Preparation and properties of high performance phthalide‐containing bismaleimide reinforced polydicyclopentadiene

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