Norbornene dicarboxylic anhydride. Influence of norbornene dicarboxylic anhydride on the copolymerization of carbon dioxide and propylene oxide 2022-10-10
Norbornene dicarboxylic anhydride, also known as norbornene-2,3-dicarboxylic anhydride or 7,7'-dicarboxy-2,3-norbornene, is an organic compound used as a monomer in the synthesis of polymers and copolymers. It is a highly reactive compound that can be polymerized to form a variety of polymers with unique physical and chemical properties.
Norbornene dicarboxylic anhydride is a white solid with a molecular formula of C10H8O4. It is prepared by the Diels-Alder reaction of cyclopentadiene with maleic anhydride. The resulting product is then dehydrated to form the anhydride.
One of the main uses of norbornene dicarboxylic anhydride is in the synthesis of polymers known as norbornene copolymers. These copolymers are formed by the polymerization of norbornene dicarboxylic anhydride with other monomers such as styrene or butadiene. Norbornene copolymers are known for their high thermal stability and good mechanical properties, making them useful in a variety of applications.
Norbornene copolymers have been used in the production of automotive parts, such as seals and gaskets, as well as in the electrical and electronics industries. They have also been used in the production of adhesives, coatings, and films.
In addition to its use in the synthesis of norbornene copolymers, norbornene dicarboxylic anhydride has also been used in the synthesis of other polymers such as polyimides and polyamides. These polymers have a wide range of applications, including use in the aerospace and automotive industries, as well as in the production of electrical insulation and high-temperature coatings.
Overall, norbornene dicarboxylic anhydride is a versatile compound with many potential uses in the synthesis of polymers with unique physical and chemical properties. Its versatility and effectiveness make it an important compound in the field of polymer chemistry.
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The crude reaction product was recrystallized from benzene three times to isolate exo-cis-5-norbornene-2, 3-dicarboxylic anhydride, m. This invention also pertains to a process for preparing such copolymers. Pictogram Signal Word Danger Hazard Statements H315 : Causes skin irritation. A yield this low was not expected, but was enough to measure the melting point to see if we had indeed produced cis-Norbornene-5, 6-endo-dicarboxylic anhydride. Photoresist monomer having hydroxy group and carboxy group, copolymer thereof and photoresist composition using the same US6569971B2 en 1998-08-27 2003-05-27 Hyundai Electronics Industries Co. Photoresist monomer having hydroxy group and carboxy group, copolymer thereof and photoresist composition using the same US6586619B2 en 1998-08-26 2003-07-01 Hyundai Electronics Industries Co.
This reaction can form new carbon-carbon bonds and new stereocenters. Applicable Law; International Use These terms will be governed by and construed in accordance with the laws of the State of Pennsylvania, without regard to any principles of conflicts of law. The exo and endo adducts as well as mixtures thereof are capable of undergoing polymerization to yield these novel copolymers by the process of the present invention. The various endo maleic anhydride-methylcyclopentadiene adducts, prepared from the 1-, 2- and 5-methylcyclopentadienes, similarly undergo isomerization to a mixture of the exo and endo adducts at elevated temperatures V. By way of example, any recommended or suggested use of products or services available from the Company that is posted through a Community Feature is not a sign of approval or recommendation by the Company.
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Influence of norbornene dicarboxylic anhydride on the copolymerization of carbon dioxide and propylene oxide
The absorption peak at 6. Please note that we cannot offer bulk quantities for some products. The yield of dioxane-soluble 1:1 copolymer was 1. Causes serious eye damage. NMR analysis confirms that the anhydrides are comonomers and are inserted to give ester entities. If you disagree with the Terms of Use as amended from time to time or are dissatisfied with the Web Site, your sole and exclusive remedy is to discontinue using the Web Site. In accordance with the present invention it has now been found that terpolymers of maleic anhydride and the exo and endo adducts can be obtained by subjecting maleic anhydride and either of the isomeric Diels-Alder adducts from maleic anhydride and cyclic conjugated dienes to temperatures at which isomerization occurs, in the presence of a free radical precursor.
EXAMPLE IX The copolymerization of 1. If you do not wish to agree to these Terms of Use, do not access or use any part of the Web Site. The free radical precursor is used in catalytic quantities, e. Site Use The information contained on this Web Site is provided for informational purposes only. Monomers for photoresist, polymers thereof, and photoresist compositions using the same US6410670B1 en 1998-08-26 2002-06-25 Hyundai Electronics Industries Co. Wird im Flammenschutz eingesetzt. Any inquiries concerning these Terms and Conditions of Use should be directed to solutions vwr.
The yield of 1:1 copolymer was 1. H334 : May cause allergy or asthma symptoms or breathing difficulties if inhaled. The support you need to optimize operations Avantor Services provides a wide range of specialized services and digital solutions to help you solve complex challenges. The infrared spectra of the maleic anhydride-5-norbornene-2, 3-dicarboxylic anhydride copolymers, prepared by copolymerization of maleic anhydride with either of the isomers of the cyclic adduct, recorded as films cast on sodium chloride plates from acetone solution, show absorption peaks at 1760 and 1835 cm -1, characteristic of copolymers containing maleic anhydride. The Company is not responsible for the content, products, services or practices of any third party websites, including without limitation sites linked to or from the Web Site, sites framed within the Web Site or third party advertisements, and does not make representations regarding their quality, content or accuracy. Polymers for photoresist and photoresist compositions using the same US6987155B2 en 1998-08-27 2006-01-17 Hyundai Electronics Industries Co.
You agree that any action at law or in equity that arises out of or relates to these Terms and Conditions of Use will be filed exclusively in the state or federal courts located in Pennsylvania and you hereby consent and submit to the personal jurisdiction of such courts for the purposes of litigating any such action. EXAMPLE IV The copolymerization of 2. It serves as an intermediate in polyesters, alkyd resins and plasticizers. Upload files that contain viruses, corrupted files, or any other similar software or programs that may damage the operation of another's computer. The anhydride groups may be reacted with monohydric alcohols to produce monoester acids or diesters, depending upon the relative amount of alcohol and the reaction conditions.
The carboxylic acid groups may be esterified with monohydric alcohols or diazoalkanes to yield monoester acids or diesters, respectively. Remove contact lenses, if present and easy to do. Purchase of Products and Services These Terms and Conditions apply only to the use of the Web Site. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. H317 : May cause an allergic skin reaction. Photoresist monomer having hydroxy group and carboxy group, copolymer thereof and photoresist composition using the same US6569971B2 en 1998-08-27 2003-05-27 Hyundai Electronics Industries Co. However, the absorption peak at 6.
This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio. Although the information is believed to correct at the time of publishing, you should make your own determination as to its suitability for your use. After an additional period of 40 min. We were only able to produce a yield of 20. TO GE CHEMICALS, INC. The yield of dioxane- soluble 1:1 copolymer was 0. The absence of absorption peaks at 1640 and 3050 cm -1 indicates the absence of double bonds.
P363 : Wash contaminated clothing before reuse. EXAMPLE VI The copolymerization of 2. Description This invention relates to novel copolymers of maleic anhydride and the cyclic adducts of maleic anhydride and certain conjugated dienes, and more particularly to novel copolymers of maleic anhydride and the cyclic adducts of maleic anhydride and cyclic conjugated dienes. Elemental analyses indicated that the product was a 1:1 exo-adduct - maleic anhydride copolymer. Didier Villemin; Bouchta Labiad; Andre Loupy. You may not copy, modify, create derivative works of, publicly display or perform, republish, store, transmit, distribute, remove, delete, augment, add to, participate in the transfer of, license or sell any of the material on the Web Site without the prior written consent of the Company, except to: a store copies of such materials temporarily in RAM, b store files that are automatically cached by your Web browser for display enhancement purposes, and c print a reasonable number of pages of a Web Site; provided in each case that you do not alter or remove any copyright or other proprietary notices included in such materials. Remove contact lenses, if present and easy to do.
