Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (11): 20230101.doi: 10.7503/cjcu20230101
• Polymer Chemistry • Previous Articles Next Articles
LI Mingfei1, LYU Jianing1, LI Xingjian1(), DING Xiaobin2
Received:
2023-03-09
Online:
2023-11-10
Published:
2023-08-29
Contact:
LI Xingjian
E-mail:lixingjian1314@163.com
Supported by:
CLC Number:
TrendMD:
LI Mingfei, LYU Jianing, LI Xingjian, DING Xiaobin. Preparation, Properties and Shape Memory Mechanism of Polyacrylate-based Polymer Crosslinked by Self-assembled Core-shell Nano-microdomain[J]. Chem. J. Chinese Universities, 2023, 44(11): 20230101.
Sample | 103c(PF127⁃DA)/(mol∙L‒1) | c(HEA+AA)/(mol∙L‒1) | m(HEA)/g | m(AA)/g | m(Irgacure 2959)/g |
---|---|---|---|---|---|
SMP⁃1 | 3.93 | 7.87 | 9.610 | 5.666 | 0.0632 |
SMP⁃2 | 3.93 | 3.93 | 4.803 | 2.832 | 0.0336 |
SMP⁃3 | 3.93 | 2.62 | 3.202 | 1.888 | 0.0237 |
SMP⁃4 | 3.93 | 1.97 | 2.402 | 1.416 | 0.0188 |
SMP⁃5 | 3.93 | 1.57 | 1.921 | 1.133 | 0.0158 |
Table 1 The formulations for preparing the target SMPs with different monomer concentrations
Sample | 103c(PF127⁃DA)/(mol∙L‒1) | c(HEA+AA)/(mol∙L‒1) | m(HEA)/g | m(AA)/g | m(Irgacure 2959)/g |
---|---|---|---|---|---|
SMP⁃1 | 3.93 | 7.87 | 9.610 | 5.666 | 0.0632 |
SMP⁃2 | 3.93 | 3.93 | 4.803 | 2.832 | 0.0336 |
SMP⁃3 | 3.93 | 2.62 | 3.202 | 1.888 | 0.0237 |
SMP⁃4 | 3.93 | 1.97 | 2.402 | 1.416 | 0.0188 |
SMP⁃5 | 3.93 | 1.57 | 1.921 | 1.133 | 0.0158 |
Sample | E30 ℃/MPa | Tg/℃ | Ep/MPa | ER | σ/MPa | ε(%) |
---|---|---|---|---|---|---|
SMP⁃1 | 4632 | 69 | 15.7 | 726 | 42.7 | 192.8 |
SMP⁃2 | 3025 | 61 | 14.7 | 838 | 16.1 | 133.1 |
SMP⁃3 | 2274 | 56 | 14.7 | 533 | 11.2 | 113.1 |
SMP⁃4 | 1429 | 49 | 14.9 | 535 | 4.7 | 61.0 |
SMP⁃5 | 648 | 43 | 26.0 | 158 | 2.5 | 32.0 |
Table 2 Summary of thermal-mechanical and mechanical properties of the polyacrylate-based SMPs crosslinked by self-assembled core-shell nano-microdomain
Sample | E30 ℃/MPa | Tg/℃ | Ep/MPa | ER | σ/MPa | ε(%) |
---|---|---|---|---|---|---|
SMP⁃1 | 4632 | 69 | 15.7 | 726 | 42.7 | 192.8 |
SMP⁃2 | 3025 | 61 | 14.7 | 838 | 16.1 | 133.1 |
SMP⁃3 | 2274 | 56 | 14.7 | 533 | 11.2 | 113.1 |
SMP⁃4 | 1429 | 49 | 14.9 | 535 | 4.7 | 61.0 |
SMP⁃5 | 648 | 43 | 26.0 | 158 | 2.5 | 32.0 |
Sample | εn(%) | εm(%) | εu(%) | εp(%) | Rf(%) | Rr(%) | εp 90%(%) | t90%/min | Vr 90%/(%·min‒1) |
---|---|---|---|---|---|---|---|---|---|
SMP⁃1 | 1.85 | 16.25 | 15.91 | 2.05 | 97.6 | 98.6 | 3.290 | 9.3 | 9.7 |
SMP⁃2 | 0.90 | 16.04 | 15.75 | 1.05 | 98.1 | 99.0 | 2.414 | 9.5 | 9.5 |
SMP⁃3 | 0.76 | 16.30 | 16.01 | 0.75 | 98.1 | 100.1 | 2.314 | 10.2 | 8.8 |
SMP⁃4 | -0.18 | 17.45 | 17.22 | 0.66 | 98.7 | 95.2 | 1.583 | 12.4 | 7.3 |
SMP⁃5 | 0.24 | 6.40 | 6.17 | 0.51 | 96.3 | 95.6 | 0.856 | 34.5 | 2.6 |
Table 3 Shape memory properties of the polyacrylate-based SMPs crosslinked by self-assembled core-shell nano-microdomain
Sample | εn(%) | εm(%) | εu(%) | εp(%) | Rf(%) | Rr(%) | εp 90%(%) | t90%/min | Vr 90%/(%·min‒1) |
---|---|---|---|---|---|---|---|---|---|
SMP⁃1 | 1.85 | 16.25 | 15.91 | 2.05 | 97.6 | 98.6 | 3.290 | 9.3 | 9.7 |
SMP⁃2 | 0.90 | 16.04 | 15.75 | 1.05 | 98.1 | 99.0 | 2.414 | 9.5 | 9.5 |
SMP⁃3 | 0.76 | 16.30 | 16.01 | 0.75 | 98.1 | 100.1 | 2.314 | 10.2 | 8.8 |
SMP⁃4 | -0.18 | 17.45 | 17.22 | 0.66 | 98.7 | 95.2 | 1.583 | 12.4 | 7.3 |
SMP⁃5 | 0.24 | 6.40 | 6.17 | 0.51 | 96.3 | 95.6 | 0.856 | 34.5 | 2.6 |
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