Academic Journal
Suspended Alicyclic Skeleton: Synthetic Approach to Zero-Birefringence Polycarbonate
| العنوان: | Suspended Alicyclic Skeleton: Synthetic Approach to Zero-Birefringence Polycarbonate |
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| المؤلفون: | Tatsuro Toda, Takuto Nakata, Hiroshi Fukuoka, Hisanari Yoneda |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Medicine, Physiology, Environmental Sciences not elsewhere classified, Astronomical and Space Sciences not elsewhere classified, Information Systems not elsewhere classified, “ suspension ”, “ suspending ”, “ fusion ”, “ fusing ”, computational studies suggested, cyclic skeleton rather, suspended pchc decreased, fused pchc film, suspended alicyclic skeleton, uniaxially stretched norbornane, copolymer synthesized via, birefringence polycarbonate poly, alicyclic polycarbonate, norbornane skeleton, photoelastic birefringence, obtain pchc, including birefringence, birefringence polycarbonates, well understood, synthetic approach, results obtained, result indicates, plane retardation, optical properties |
| الوصف: | Poly(cyclohexene carbonate) (PCHC) is a recyclable, sustainable, alicyclic polycarbonate that can be synthesized from CO 2 . However, the optical properties of PCHC, including birefringence, are not well understood. Herein, we designed novel carbonate units via two approaches: “fusion” and “suspension” of a norbornane skeleton to obtain PCHC-based zero-birefringence polycarbonates. Compared to PCHC, the in-plane retardation of the 100% uniaxially stretched norbornane-fused PCHC film was reduced, whereas the photoelastic coefficient unexpectedly increased. In contrast, the photoelastic birefringence of norbornane-suspended PCHC decreased. Furthermore, the copolymer synthesized via the copolymerization of cyclohexene carbonate with a tetracyclododecane-suspended monomer exhibited almost zero photoelastic birefringence. This result indicates that the photoelastic birefringence can be reduced by “suspending” the cyclic skeleton rather than “fusing” it. Computational studies suggested that the chair cyclohexane skeleton suppresses photoelastic birefringence. The results obtained in this study have the potential to guide the design of low-birefringence polycarbonates and other polymers. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Suspended_Alicyclic_Skeleton_Synthetic_Approach_to_Zero-Birefringence_Polycarbonate/25273700 |
| DOI: | 10.1021/acs.macromol.3c02349.s001 |
| الاتاحة: | https://doi.org/10.1021/acs.macromol.3c02349.s001 https://figshare.com/articles/journal_contribution/Suspended_Alicyclic_Skeleton_Synthetic_Approach_to_Zero-Birefringence_Polycarbonate/25273700 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.32EF4A30 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.macromol.3c02349.s001 |
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