Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices
cyclic olefinic copolymers (COC) include an important class of polyolefins with special properties as soft or hard materials, depending on the content of norbornene monomer in the final copolymer composition. In common commercial copolymers, the amount of norbornene is more than 20% (by mol) which i...
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Iran Polymer and Petrochemical Institute
2024-04-01
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| Series: | علوم و تکنولوژی پلیمر |
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| Online Access: | http://jips.ippi.ac.ir/article_2041_0f6a1d399b777b6fd1c81da366314da4.pdf |
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| author | Maryam Babaei Mohammad Imani saeid Ahmadjo |
| author_facet | Maryam Babaei Mohammad Imani saeid Ahmadjo |
| author_sort | Maryam Babaei |
| collection | DOAJ |
| description | cyclic olefinic copolymers (COC) include an important class of polyolefins with special properties as soft or hard materials, depending on the content of norbornene monomer in the final copolymer composition. In common commercial copolymers, the amount of norbornene is more than 20% (by mol) which is randomly distributed in the microstructure of the copolymer and gives the final polymers an amorphous and optically transparent structure. An increase in norbornene content in the copolymer structure leads to a corresponding increase in the glass transition temperature (Tg) of the final copolymer. The remarkable optical properties of this type of COC strongly depend on their amorphous structure, which is not limited to the visible light wavelength range, so COCs can be used as transparent polymers in ultraviolet and vislible wavelengths to achieve suitable optically clear products. Due to their higher resistance to chemicals especially polar solvents COCs are used for producing laboratory equipment in a competitive manner with other polymers. On the other hand, COCs are inert biological materials, making them suitable candidates for packaging applications for medicines, including pre-filled syringes. Water is the main solvent used to produce the injectable products, so low water absorption by these copolymers ensures dimensional stability of the final product under ambient conditions. In a highly humid environment, water absorption capacity for COCs is limited to 4 and 10 times less than that of polycarbonate and polymethyl methacrylate polymers, respectively. In this study, after a brief introduction to COCs the polymerization methods by different catalysts are discussed, and the optical mechanical and thermal characteristics of these copolymers are discussed. Finally, the details of COC processing and its applications are mentioned |
| format | Article |
| id | doaj-art-bf231ad174d14eff8a4e63a963e806fe |
| institution | DOAJ |
| issn | 1016-3255 2008-0883 |
| language | fas |
| publishDate | 2024-04-01 |
| publisher | Iran Polymer and Petrochemical Institute |
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| series | علوم و تکنولوژی پلیمر |
| spelling | doaj-art-bf231ad174d14eff8a4e63a963e806fe2025-08-20T02:46:24ZfasIran Polymer and Petrochemical Instituteعلوم و تکنولوژی پلیمر1016-32552008-08832024-04-0137132610.22063/jipst.2024.3318.22072041Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical DevicesMaryam Babaei0Mohammad Imani1saeid Ahmadjo2Iran Polymer and Petrochemical Institute, P.O. Box: 14975-112, Tehran, IranIran Polymer and Petrochemical Institute, P.O. Box: 14975-112, Tehran, IranIran Polymer and Petrochemical Institute, P.O. Box: 14975-112, Tehran, Irancyclic olefinic copolymers (COC) include an important class of polyolefins with special properties as soft or hard materials, depending on the content of norbornene monomer in the final copolymer composition. In common commercial copolymers, the amount of norbornene is more than 20% (by mol) which is randomly distributed in the microstructure of the copolymer and gives the final polymers an amorphous and optically transparent structure. An increase in norbornene content in the copolymer structure leads to a corresponding increase in the glass transition temperature (Tg) of the final copolymer. The remarkable optical properties of this type of COC strongly depend on their amorphous structure, which is not limited to the visible light wavelength range, so COCs can be used as transparent polymers in ultraviolet and vislible wavelengths to achieve suitable optically clear products. Due to their higher resistance to chemicals especially polar solvents COCs are used for producing laboratory equipment in a competitive manner with other polymers. On the other hand, COCs are inert biological materials, making them suitable candidates for packaging applications for medicines, including pre-filled syringes. Water is the main solvent used to produce the injectable products, so low water absorption by these copolymers ensures dimensional stability of the final product under ambient conditions. In a highly humid environment, water absorption capacity for COCs is limited to 4 and 10 times less than that of polycarbonate and polymethyl methacrylate polymers, respectively. In this study, after a brief introduction to COCs the polymerization methods by different catalysts are discussed, and the optical mechanical and thermal characteristics of these copolymers are discussed. Finally, the details of COC processing and its applications are mentionedhttp://jips.ippi.ac.ir/article_2041_0f6a1d399b777b6fd1c81da366314da4.pdfcyclic olefin copolymer (coc)norborneneoptical polymersethylene–norbornene copolymers (enc)prefilled syringe |
| spellingShingle | Maryam Babaei Mohammad Imani saeid Ahmadjo Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices علوم و تکنولوژی پلیمر cyclic olefin copolymer (coc) norbornene optical polymers ethylene–norbornene copolymers (enc) prefilled syringe |
| title | Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices |
| title_full | Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices |
| title_fullStr | Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices |
| title_full_unstemmed | Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices |
| title_short | Cyclic Olefin Copolymers: Superseding Glass Optical Characteristics with Plastics in Medical Devices |
| title_sort | cyclic olefin copolymers superseding glass optical characteristics with plastics in medical devices |
| topic | cyclic olefin copolymer (coc) norbornene optical polymers ethylene–norbornene copolymers (enc) prefilled syringe |
| url | http://jips.ippi.ac.ir/article_2041_0f6a1d399b777b6fd1c81da366314da4.pdf |
| work_keys_str_mv | AT maryambabaei cyclicolefincopolymerssupersedingglassopticalcharacteristicswithplasticsinmedicaldevices AT mohammadimani cyclicolefincopolymerssupersedingglassopticalcharacteristicswithplasticsinmedicaldevices AT saeidahmadjo cyclicolefincopolymerssupersedingglassopticalcharacteristicswithplasticsinmedicaldevices |