Mechanochromic and thermally re-processable thermosets for autonomic damage reporting and self-healing coatings
| 000 | 00000nam c2200205 c 4500 | |
| 001 | 000046120399 | |
| 005 | 20230712115627 | |
| 007 | ta | |
| 008 | 211226s2022 ulkad bmAC 000c eng | |
| 040 | ▼a 211009 ▼c 211009 ▼d 211009 | |
| 041 | 0 | ▼a eng ▼b kor |
| 085 | 0 | ▼a 0510 ▼2 KDCP |
| 090 | ▼a 0510 ▼b 6D5 ▼c 1218 | |
| 100 | 1 | ▼a 윤수빈, ▼g 尹秀彬 |
| 245 | 1 0 | ▼a Mechanochromic and thermally re-processable thermosets for autonomic damage reporting and self-healing coatings / ▼d Subin Yoon |
| 260 | ▼a Seoul : ▼b Graduate School, Korea University, ▼c 2022 | |
| 300 | ▼a vi, 64장 : ▼b 삽화(일부천연색), 도표 ; ▼c 26 cm | |
| 500 | ▼a 지도교수: 방준하 | |
| 502 | 0 | ▼a 학위논문(석사)-- ▼b 고려대학교 대학원, ▼c 화공생명공학과, ▼d 2022. 2 |
| 504 | ▼a 참고문헌: 장 55-62 | |
| 530 | ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf) | |
| 653 | ▼a spiropyran ▼a dynamic covalent bond ▼a Diels-Alder reaction ▼a self-reporting ▼a self-healing ▼a mechanophore | |
| 776 | 0 | ▼t Mechanochromic and thermally re-processable thermosets for autonomic damage reporting and self-healing coatings ▼w (DCOLL211009)000000257771 |
| 900 | 1 0 | ▼a Yoon, Subin, ▼e 저 |
| 900 | 1 0 | ▼a 방준하, ▼g 方畯昰, ▼d 1972-, ▼e 지도교수 ▼0 AUTH(211009)153272 |
| 900 | 1 0 | ▼a Bang, Joona, ▼e 지도교수 |
| 945 | ▼a ITMT |
Electronic Information
| No. | Title | Service |
|---|---|---|
| 1 | Mechanochromic and thermally re-processable thermosets for autonomic damage reporting and self-healing coatings (10회 열람) |
View PDF Abstract Table of Contents |
Holdings Information
| No. | Location | Call Number | Accession No. | Availability | Due Date | Make a Reservation | Service |
|---|---|---|---|---|---|---|---|
| No. 1 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1218 | Accession No. 123068584 | Availability Processing | Due Date | Make a Reservation Available for Reserve | Service |
| No. 2 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1218 | Accession No. 123068585 | Availability Processing | Due Date | Make a Reservation | Service |
Contents information
Abstract
Self-healing and re-processable thermosetting polymers that visualize damage in color are demonstrated. A well-known mechanochromic molecule, spiropyrans (SP) is covalently incorporated in thermo-reversible Diels-Alder (DA) cross-linking networks. Mechanical activation of SPs in DA networks is confirmed by mechanical testing. The damaged areas of the polymers are changing color, emitting fluorescence signals, and completely recovered after heat treatment. Owing to thermo-reversible covalent networks, these polymers can be recycled up to fifteen times without degrading their mechanical, damage-reporting, and self-healing properties. Our autonomic material systems provide a new way to enhance the life span and reliability of thermosetting coatings, which also expands the practical applications of force-induced chemical reactions in a polymer.
Table of Contents
1. Introduction 1 2. Experimental Procedures 6 2.1. Materials 6 2.2. Characterization 6 2.3. Synthesis of mechanically active spiropyran (SP) 7 2.4. Synthesis of control spiropyran (Ctrl) 10 2.5. Synthesis of tris(2-maleimidoethyl)amine cross-linkers 12 2.6. Polymerization of SP-linked poly(LMA-co-FMA) (P) and Ctrl-linked poly(LMA-co-FMA) (C) 14 2.7. Fabrication of cross-linked polymer using the Diels-Alder reaction (xP and xC) 14 2.8. Calculation of activation energy 15 3. Results and Discussion 16 3.1. SP-linked linear copolymers 16 3.2. Thermoreversible, SP-linked CANs 31 3.4. Autonomic damage reporting and self-healing coatings 35 3.4. Thermomechanical properties/Reprocessability 41 4. Conclusions 54 REFERENCES 55 국문초록 63 EDUCATION 64
