Fluorinated Polybenzimidazopyrrolones with Excellent Alkaline- Hydrolysis Resistance | |
Department | 先进润滑与防护材料研究发展中心 |
Tao LM(陶立明)1,2; Yang HX(杨海霞)2; Liu JG(刘金刚)2; Fan L(范琳)2; Yang SY(杨士勇)2; Yang SY(杨士勇); Yang HX(杨海霞) | |
The second department | 固体润滑国家重点实验室 |
2014 | |
Source Publication | Journal of Applied Polymer Science |
ISSN | 0021-8995 |
Volume | 131Issue:6Pages:40041(1-11) |
Abstract | Two novel aromatic tetraamines containing bulky lateral phenyl unit and multiple trifluoromethyl groups, 1,1-bis[4-(3′,4′- diaminophenoxy)phenyl]-1-(3〞-trifluoromethylphenyl)-2,2,2-trifluoroethane (6FTA) and 1,1-bis[4-(3′,4′-diaminophenoxy)phenyl]-1-[3〞,5〞-bis(trifluoromethyl)phenyl]-2,2,2-trifluoroethane (9FTA) were synthesized and characterized. A series of fluorinated aromatic polybenzimidazopyrrolones (polypyrrolones, PPys) were synthesized via a two-step polycondensation procedure. The inherent viscosities of the precursors, poly(amide amino acid) (PAAA), ranged from 0.39 dL/g to 0.54 dL/g. All the FPPys were amorphous. The freestanding FPPy films could be prepared, which exhibited good thermal stability with the glass transition temperature of 315–389 ℃, the temperatures of 5% weight loss (T5%) of 497–535 ℃ in nitrogen and residual weight retention at 700 ℃ over 60%. All the FPPy films exhibited excellent alkaline-hydrolysis resistance which retained their original shapes and toughness after boiling 7 days in 10% sodium hydroxide solution. Also after boiling 8 h in 10% sodium hydroxide solution, the tensile strength could retain as high as 56% of the original values. The alkaline-hydrolysis resistance was much better than the polyimides which had similar chemical structures. |
Keyword | Polyimides Polycondensation Films |
Subject Area | 材料科学与物理化学 |
Funding Organization | National Natural Science Foundation of China (No. 51103168;51173188) |
Indexed By | SCI |
If | 1.768 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/4962 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Yang SY(杨士勇); Yang HX(杨海霞) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Tao LM,Yang HX,Liu JG,et al. Fluorinated Polybenzimidazopyrrolones with Excellent Alkaline- Hydrolysis Resistance[J]. Journal of Applied Polymer Science,2014,131(6):40041(1-11). |
APA | Tao LM.,Yang HX.,Liu JG.,Fan L.,Yang SY.,...&杨海霞.(2014).Fluorinated Polybenzimidazopyrrolones with Excellent Alkaline- Hydrolysis Resistance.Journal of Applied Polymer Science,131(6),40041(1-11). |
MLA | Tao LM,et al."Fluorinated Polybenzimidazopyrrolones with Excellent Alkaline- Hydrolysis Resistance".Journal of Applied Polymer Science 131.6(2014):40041(1-11). |
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Fluorinated polybenz(695KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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