当前位置：
X-MOL 学术
›
Macromol. Chem. Phys.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Optically Transparent and Thermal‐Stable Polyimide Films Derived from a Semi‐Aliphatic Diamine: Synthesis and Properties
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-01-29 , DOI: 10.1002/macp.201900506 Xiuming Wu 1 , Chen Shu 1 , Xiaoqian He 1 , Shoubai Wang 2 , Xiang Fan 3 , Zhenhai Yu 1, 3 , Deyue Yan 1 , Wei Huang 1
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-01-29 , DOI: 10.1002/macp.201900506 Xiuming Wu 1 , Chen Shu 1 , Xiaoqian He 1 , Shoubai Wang 2 , Xiang Fan 3 , Zhenhai Yu 1, 3 , Deyue Yan 1 , Wei Huang 1
Affiliation
|
A novel semi‐aliphatic diamine with bulky cyclohexyl and ortho‐substituted tertiary butyl groups (4,4'‐(cyclohexylmethylene)bis(2‐(tert‐butyl)aniline), CHMBTBA) is synthesized via Mannich and rearrangement reactions of cyclohexanecarboxaldehyde and 2‐tert‐butylaniline. Afterward, several semi‐aliphatic polyimides are prepared by the high‐temperature one‐pot polymerization of CHMBTBA with various aromatic dianhydrides respectively. The resulting PIs exhibit outstanding solubility in common organic solvents (i.e., trichloromethane, etc.) and are easily processed into light color or colorless transparent films (thickness: 25 ± 1 µm) by the blade coating of polymer solution. The transmittance of all resulting films is above 86% in the visible light region (400–760 nm). Their glass transition temperatures exceed 310 °C and reach even to 374 °C (by differential scanning calorimetry). They also display low water absorption (0.29–0.87%) and good mechanical properties (tensile strength: 50.9–87.7 MPa, Young's modulus: 2.0‐2.5 GPa, elongation at break: 3.8–7.6%). Thus, they are promising potential candidates for flexible display substrates.
中文翻译：
半脂族二胺衍生的光学透明且热稳定的聚酰亚胺薄膜：合成与性能
与笨重环己基和一种新的半脂肪族二胺邻-取代的叔丁基（4,4' - （环己基亚甲基）双（2-（叔丁基）苯胺），CHMBTBA）经由曼尼希和环己烷甲醛的重排反应和2中合成的-叔-丁基苯胺。然后，通过CHMBTBA的高温单锅法分别与各种芳族二酐制备数种半脂族聚酰亚胺。所得的PI在普通有机溶剂（例如三氯甲烷等）中表现出出色的溶解性，并且通过聚合物溶液的刮涂可轻松加工成浅色或无色透明膜（厚度：25±1 µm）。在可见光区域（400–760 nm）内，所有所得薄膜的透射率均高于86％。它们的玻璃化转变温度超过310°C，甚至达到374°C（通过差示扫描量热法）。它们还显示出低吸水率（0.29–0.87％）和良好的机械性能（抗张强度：50.9–87.7 MPa，杨氏模量：2.0–2.5 GPa，断裂伸长率：3.8–7.6％）。从而，
更新日期：2020-01-29
中文翻译：
半脂族二胺衍生的光学透明且热稳定的聚酰亚胺薄膜：合成与性能
与笨重环己基和一种新的半脂肪族二胺邻-取代的叔丁基（4,4' - （环己基亚甲基）双（2-（叔丁基）苯胺），CHMBTBA）经由曼尼希和环己烷甲醛的重排反应和2中合成的-叔-丁基苯胺。然后，通过CHMBTBA的高温单锅法分别与各种芳族二酐制备数种半脂族聚酰亚胺。所得的PI在普通有机溶剂（例如三氯甲烷等）中表现出出色的溶解性，并且通过聚合物溶液的刮涂可轻松加工成浅色或无色透明膜（厚度：25±1 µm）。在可见光区域（400–760 nm）内，所有所得薄膜的透射率均高于86％。它们的玻璃化转变温度超过310°C，甚至达到374°C（通过差示扫描量热法）。它们还显示出低吸水率（0.29–0.87％）和良好的机械性能（抗张强度：50.9–87.7 MPa，杨氏模量：2.0–2.5 GPa，断裂伸长率：3.8–7.6％）。从而，
京公网安备 11010802027423号