Industrial Applications of ROMP

Nickel, Andrew; Edgecombe, B.D.

doi:10.1016/b978-0-444-53349-4.00106-0

Cited by 11 publications

(13 citation statements)

References 7 publications

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“…Taking into account that some commercially available cycloolefin polymers synthesized by ROMP bear saturated backbones, it is highly desired to afford hydrogenated polynorbornene derivatives that exhibit improved thermal and chemical stability for practical applications . Hence, the transformation of the rigid double bonds into single bonds would increase the conformational mobility of polymer chains and new polynorbornene dicarboximides with enhanced gas permselectivity can be obtained.…”

Section: Introductionmentioning

confidence: 99%

Gas Transport Properties of Hydrogenated and Fluorinated Polynorbornene Dicarboximides

Vargas

Santiago

Cruz-Morales

et al. 2013

Macro Chemistry & Physics

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The synthesis and further hydrogenation of fl uorinated polynorbornene dicarboximides is reported, using p -toluenesulfonyl hydrazide and Wilkinson's catalysts, respectively. Despite improving the resistance to thermo-oxidative degradation, it is observed that the hydrogenation of the backbone double bonds in the polymer also decreases the thermomechanical properties. Afterward, a comparative study of gas transport in membranes based on these hydrogenated polynorbornenes, as well as in their unsaturated analogues, is carried out. The gases studied are hydrogen, oxygen, nitrogen, carbon dioxide, methane, ethane, ethylene, and propylene. After hydrogenation, the gas permselectivity of the membranes is enhanced as a consequence of the decrease of both the gas solubility and the gas diffusion.

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Section: Introductionmentioning

confidence: 99%

Gas Transport Properties of Hydrogenated and Fluorinated Polynorbornene Dicarboximides

Vargas

Santiago

Cruz-Morales

et al. 2013

Macro Chemistry & Physics

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“…However, an interpretation of these markers, as has been suggested, as PN for sample 194 is problematic. First, further known markers for PN could not be found (e.g., indene); second and most importantly, the first PN appeared at least two decades later in the market [ 67 ]. However, further markers for EPDM, particularly the alkene series typical of EPDM, could also not be found.…”

Section: Resultsmentioning

confidence: 99%

Material Analysis and a Visual Guide of Degradation Phenomena in Historical Synthetic Polymers as Tools to Follow Ageing Processes in Industrial Heritage Collections

2021

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Identifying the most vulnerable plastics and monitoring their deterioration is one of the main problems within heritage collections with historical synthetic polymers. Gathering and interpreting data about material and degradation phenomena in a collection reveals its conservation needs. A systematic survey of the collection can help towards this purpose. Surveys aiming at inspecting and documenting damages rely on several tools in order to fulfill their purpose. Firstly, objective descriptions of the damages that may appear, and secondly, the means of acquiring and interpreting material information. To address these needs, this article presents (a) a visual damage catalogue of degradation phenomena in plastic and rubber materials, and (b) the implementation of Fourier-transform infrared spectroscopy (FTIR) and pyrolysis–gas chromatography–mass spectrometry (py-GCMS) for the identification of analytically challenging rubber materials and of blooming phenomena. The damage catalogue is based solely on visual and olfactory signs, so that the assessment is independent of possible causes of damages and underlying processes, with the purpose of allowing objectivity to prime over interpretation. The limitations of the use of FTIR in the identification of heavily compounded rubbers in museum surveys is highlighted, and examples are presented. The use of py-GCMS on these cases conveniently allowed the identification of the constituting monomers of several rubber materials where FTIR could not provide a univocal classification of the material present. The study of several cases of blooming allowed the identification of diverse compositions and origins, showing that the description of a degradation phenomenon is only the first step towards its understanding. Unveiling the nature of a particular case of blooming is particularly critical when conservation treatments, such as the removal of a (potentially protecting) layer, are planned. For this purpose, attenuated total reflection-FTIR (ATR-FTIR) as a surface technique was particularly useful.

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“…ROMP is industrially used in the production of poly dicyclopentadiene, polynorbornene, cyclic olefin copolymers, polyoctenamer, and some endfunctionalized polymers. 23 Using OM, block copolymers are obtained with high levels of control over branching density and polar group placement. However, the need for specific monomers (cyclic alkenes or α−ω-dienes) and the multistep nature of the process are the major drawbacks of OM, which limit the scope of polar monomer enchainment into the polyolefin chain.…”

Section: Introductionmentioning

confidence: 99%

“…The other approach to the controlled incorporation of the functional groups on the polyolefin chains is olefin metathesis (OM), including ROMP and acyclic diene metathesis polycondensation (ADMET). ROMP is industrially used in the production of poly dicyclopentadiene, polynorbornene, cyclic olefin copolymers, polyoctenamer, and some end-functionalized polymers . Using OM, block copolymers are obtained with high levels of control over branching density and polar group placement.…”

Section: Introductionmentioning

confidence: 99%

Tailor-Made Functional Polyolefins of Complex Architectures: Recent Advances, Applications, and Prospects

2022

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Polyolefins play a crucial role in the polymer industry because of their low-cost monomers and well-established production processes. Recent years have witnessed tremendous progress in direct and tandem copolymerization strategies that provide an opportunity of developing polyolefins bearing polar groups with distinctive architectures and properties. In this perspective, we first highlight new routes for the proficient synthesis of tailor-made functional polyolefins and briefly discuss their designing tactics. Then, we attempt to categorize these, recently appeared in the literature, innovative functional polyolefins on the basis of their applications. The prospected future applications of polar olefin copolymers include biomedical materials, catalysts, energy storage devices, and conductive polymers, which open up new arenas and paradigms for academic research and industrial products development. Critical issues concerning intelligent functional polyolefins and green chemistry are discussed, too.

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Industrial Applications of ROMP

Cited by 11 publications

References 7 publications

Gas Transport Properties of Hydrogenated and Fluorinated Polynorbornene Dicarboximides

Gas Transport Properties of Hydrogenated and Fluorinated Polynorbornene Dicarboximides

Material Analysis and a Visual Guide of Degradation Phenomena in Historical Synthetic Polymers as Tools to Follow Ageing Processes in Industrial Heritage Collections

Tailor-Made Functional Polyolefins of Complex Architectures: Recent Advances, Applications, and Prospects

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