Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (3): 919.doi: 10.7503/cjcu20200482
• Polymer Chemistry • Previous Articles Next Articles
XU Xiaozhou1,2, LIU Yi1, HE Minhui1, MO Song1, LAN Bangwei1,2, ZHAI Lei1, FAN Lin1,2()
Received:
2020-07-21
Online:
2021-03-10
Published:
2021-03-08
Contact:
FAN Lin
E-mail:fanlin@iccas.ac.cn
CLC Number:
TrendMD:
XU Xiaozhou, LIU Yi, HE Minhui, MO Song, LAN Bangwei, ZHAI Lei, FAN Lin. Effect of Copolymerization Structure and Molecular Weight on Melt Fluidity and Thermal Properties of Thermoplastic Polyimide Resins[J]. Chem. J. Chinese Universities, 2021, 42(3): 919.
TPIs | Diamine composition | Theoretical data | GPC data | |||
---|---|---|---|---|---|---|
Mn | n | Mn | Mw | Mw/Mn | ||
TPI?A?25k | p?PDA | 25800 | 49 | 26000 | 59000 | 2.21 |
TPI?B?25k | p?PDA/m?PDA | 25800 | 49 | 26400 | 69700 | 2.64 |
TPI?C?15k | p?PDA/TFDB | 15200 | 26 | 16500 | 48700 | 2.95 |
TPI?C?20k | p?PDA/TFDB | 19900 | 37 | 21300 | 55400 | 2.60 |
TPI?C?25k | p?PDA/TFDB | 25400 | 49 | 28600 | 79200 | 2.77 |
TPI?D?25k | p?PDA/BAFL | 24600 | 43 | 23000 | 53400 | 2.32 |
TPIs | Diamine composition | Theoretical data | GPC data | |||
---|---|---|---|---|---|---|
Mn | n | Mn | Mw | Mw/Mn | ||
TPI?A?25k | p?PDA | 25800 | 49 | 26000 | 59000 | 2.21 |
TPI?B?25k | p?PDA/m?PDA | 25800 | 49 | 26400 | 69700 | 2.64 |
TPI?C?15k | p?PDA/TFDB | 15200 | 26 | 16500 | 48700 | 2.95 |
TPI?C?20k | p?PDA/TFDB | 19900 | 37 | 21300 | 55400 | 2.60 |
TPI?C?25k | p?PDA/TFDB | 25400 | 49 | 28600 | 79200 | 2.77 |
TPI?D?25k | p?PDA/BAFL | 24600 | 43 | 23000 | 53400 | 2.32 |
TPI | Minimum melt viscosity/(Pa.s@℃) | Complex viscosity/(Pa·s) | ||
---|---|---|---|---|
360 ℃ | 380 ℃ | 400 ℃ | ||
TPI?A?25k | 33400@430 | 97954 | 65022 | 40861 |
TPI?B?25k | 28340@430 | 55631 | 31093 | 33213 |
TPI?C?15k | 18405@417 | 82971 | 24819 | 23393 |
TPI?C?20k | 23072@419 | 183570 | 28055 | 18962 |
TPI?C?25k | 31450@430 | 379700 | 65000 | 40860 |
TPI?D?25k | 26580@413 | 532011 | 109102 | 26867 |
TPI | Minimum melt viscosity/(Pa.s@℃) | Complex viscosity/(Pa·s) | ||
---|---|---|---|---|
360 ℃ | 380 ℃ | 400 ℃ | ||
TPI?A?25k | 33400@430 | 97954 | 65022 | 40861 |
TPI?B?25k | 28340@430 | 55631 | 31093 | 33213 |
TPI?C?15k | 18405@417 | 82971 | 24819 | 23393 |
TPI?C?20k | 23072@419 | 183570 | 28055 | 18962 |
TPI?C?25k | 31450@430 | 379700 | 65000 | 40860 |
TPI?D?25k | 26580@413 | 532011 | 109102 | 26867 |
TPI | Vo/nm3 | Vf/nm3 | FFV(%) |
---|---|---|---|
TPI?A?25k | 27.9284 | 9.1585 | 24.7 |
TPI?B?25k | 27.7029 | 9.9835 | 26.5 |
TPI?C?25k | 29.7515 | 10.6268 | 26.3 |
TPI?D?25k | 30.9471 | 13.0343 | 29.6 |
TPI | Vo/nm3 | Vf/nm3 | FFV(%) |
---|---|---|---|
TPI?A?25k | 27.9284 | 9.1585 | 24.7 |
TPI?B?25k | 27.7029 | 9.9835 | 26.5 |
TPI?C?25k | 29.7515 | 10.6268 | 26.3 |
TPI?D?25k | 30.9471 | 13.0343 | 29.6 |
TPI | T aonset/℃ | T bpeak/℃ | T c5/℃ | T d10/℃ | R e700(%) |
---|---|---|---|---|---|
TPI?A?25k | 329 | 355 | 555 | 573 | 12.1 |
TPI?B?25k | 308 | 333 | 544 | 563 | 3.6 |
TPI?C?15k | 319 | 337 | 543 | 562 | 3.6 |
TPI?C?20k | 321 | 342 | 545 | 564 | 8.1 |
TPI?C?25k | 325 | 347 | 546 | 564 | 5.1 |
TPI?D?25k | 338 | 358 | 552 | 568 | 6.1 |
TPI | T aonset/℃ | T bpeak/℃ | T c5/℃ | T d10/℃ | R e700(%) |
---|---|---|---|---|---|
TPI?A?25k | 329 | 355 | 555 | 573 | 12.1 |
TPI?B?25k | 308 | 333 | 544 | 563 | 3.6 |
TPI?C?15k | 319 | 337 | 543 | 562 | 3.6 |
TPI?C?20k | 321 | 342 | 545 | 564 | 8.1 |
TPI?C?25k | 325 | 347 | 546 | 564 | 5.1 |
TPI?D?25k | 338 | 358 | 552 | 568 | 6.1 |
TPI | Tensile strength/MPa | Tensile modulus/GPa | Elongation at break(%) | Flexural strength/MPa | Flexural modulus/GPa |
---|---|---|---|---|---|
TPI?A?25k | 100.5±4.7 | 2.62±0.17 | 5.41±0.24 | 193.2±3.6 | 4.62±0.22 |
TPI?B?25k | 125.3±3.8 | 2.53±0.12 | 7.40±0.32 | 187.2±2.7 | 4.26±0.36 |
TPI?C?15k | 105.6±6.1 | 2.51±0.10 | 5.10±0.41 | 186.2±3.5 | 4.41±0.32 |
TPI?C?20k | 118.0±4.5 | 2.54±0.16 | 8.08±0.46 | 192.0±3.7 | 4.45±0.27 |
TPI?C?25k | 127.3±5.3 | 2.56±0.13 | 8.22±0.35 | 191.0±5.2 | 4.52±0.43 |
TPI?D?25k | 126.1±6.4 | 2.58±0.12 | 8.20±0.42 | 204.7±4.1 | 4.55±0.34 |
TPI | Tensile strength/MPa | Tensile modulus/GPa | Elongation at break(%) | Flexural strength/MPa | Flexural modulus/GPa |
---|---|---|---|---|---|
TPI?A?25k | 100.5±4.7 | 2.62±0.17 | 5.41±0.24 | 193.2±3.6 | 4.62±0.22 |
TPI?B?25k | 125.3±3.8 | 2.53±0.12 | 7.40±0.32 | 187.2±2.7 | 4.26±0.36 |
TPI?C?15k | 105.6±6.1 | 2.51±0.10 | 5.10±0.41 | 186.2±3.5 | 4.41±0.32 |
TPI?C?20k | 118.0±4.5 | 2.54±0.16 | 8.08±0.46 | 192.0±3.7 | 4.45±0.27 |
TPI?C?25k | 127.3±5.3 | 2.56±0.13 | 8.22±0.35 | 191.0±5.2 | 4.52±0.43 |
TPI?D?25k | 126.1±6.4 | 2.58±0.12 | 8.20±0.42 | 204.7±4.1 | 4.55±0.34 |
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