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Aimed at the application requirements of polyimide (PI) film materials in the field of high frequency, polyimides containing semi-alicyclic structure were synthesized by the semi-alicyclic diamine 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindan (DAPI) with different aromatic dianhydrides. And their corresponding films were prepared, the correlation between their structure and properties was explored. The results show that polyimides containing semi-alicyclic structure have good solubility and processability, they are soluble in conventional organic solvents such as NMP, DMF, CHC13, etc. The corresponding films had good mechanical and thermal properties, their tensile strength ranges from 64.8 MPa to 82.6 MPa, and their glass transition temperature can exceed 487℃. The dielectric constant (Dk) of the PI films is 2.63-4.62 at 1 kHz-1 MHz and 2.46-2.75 at 10 GHz, respectively. The dissipation factor (Df) is 0.003 1-0.020 5 at 1 kHz-1 MHz and 0.006 6-0.017 4 at 10 GHz, respectively. In particular, the Dk and Df of the B-PI(BPADA-DAPI) film at 10 GHz is 2.75 and 0.006 6, respectively. It is indicated that the polyimide films with low dielectric constant and low dielectric loss at high frequency can be obtained by the introduction of semi-alicyclic moieties and bisphenol A groups into the main chains.
, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Jian LU, Guoxiang ZOU, Yongbing ZHUANG), CN=ArticleExt(id=1198665002702962955, articleId=1198664997489442978, tenantId=1146029695717560320, journalId=1149653034449285133, language=CN, title=高频低介电半脂环聚酰亚胺薄膜的制备与性能, columnId=1198664997682376829, journalTitle=绝缘材料, columnName=聚酰亚胺薄膜专题, runingTitle=null, highlight=null, articleAbstract=
针对高频通讯领域对聚酰亚胺(PI)薄膜材料的应用需求,以半脂环二胺5(6)-氨基-1-(4-氨基苯基)-1,3,3-三甲基茚满(DAPI)与不同的芳香二酐反应,合成了含半脂环结构的PI并制备了对应薄膜,探究了其结构与性能的相关性。结果表明:含半脂环结构的PI具有良好的可溶解加工性,能溶于NMP、DMF、CHC13等常规有机溶剂。制备的薄膜具有良好的力学性能和耐热性,拉伸强度为64.8~82.6 MPa,玻璃化转变温度最高可超过487℃。薄膜的介电常数(Dk)为2.63~4.62(1 kHz~1 MHz)、2.46~2.75(10 GHz),介质损耗因数(Df)为0.003 1~0.020 5(1 kHz~1 MHz)、0.006 6~0.017 4(10 GHz)。其中,薄膜B-PI(BPADA-DAPI)在10 GHz下的介电常数为2.75,介质损耗因数为0.006 6,表明在PI分子主链上同时引入半脂环和双酚A结构能制备兼具高频低介电常数、低介质损耗的PI薄膜。
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陆健(1995-),男(汉族),安徽蚌埠人,硕士生,主要从事聚酰亚胺电子材料的研究
邹国享(1979-),男(汉族),湖北荆州人,教授,研究方向为高分子材料改性
庄永兵(1976-),男(汉族),湖北荆州人,研究员,研究方向为功能性聚酰亚胺的设计、制备及应用。
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1常州大学 材料科学与工程学院,江苏 常州 213164)]), AuthorCompany(id=1210935050317722111, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, xref=2, ext=[AuthorCompanyExt(id=1210935050326110720, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, companyId=1210935050317722111, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3中国科学院大学 化学工程学院,北京 100049)])], figs=[ArticleFig(id=1210935052666532451, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.1, caption=
Synthesis route of PI, figureFileSmall=Yxm7ilcJC28vk0pc2lxgFg==, figureFileBig=WKk6Jr7MEtiz9kbYOGFjuA==, tableContent=null), ArticleFig(id=1210935052754612834, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图1, caption=
PI的合成路线, figureFileSmall=Yxm7ilcJC28vk0pc2lxgFg==, figureFileBig=WKk6Jr7MEtiz9kbYOGFjuA==, tableContent=null), ArticleFig(id=1210935052876247654, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.2, caption=
1H-NMR spectra of N-PI, figureFileSmall=BGzLp5UPBalpOBE11BjHHA==, figureFileBig=VyD7i84w2eMHCVhs8tVzgA==, tableContent=null), ArticleFig(id=1210935052951745127, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图2, caption=
N-PI的1H-NMR谱图, figureFileSmall=BGzLp5UPBalpOBE11BjHHA==, figureFileBig=VyD7i84w2eMHCVhs8tVzgA==, tableContent=null), ArticleFig(id=1210935053023048298, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.3, caption=
FTTR spectra of N-PI film, figureFileSmall=P6Oc/1LeUZpCOg5DeW7/Ww==, figureFileBig=Gi2p61FqdEQWz/JvR4DZ2w==, tableContent=null), ArticleFig(id=1210935053144683117, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图3, caption=
N-PI薄膜的红外光谱, figureFileSmall=P6Oc/1LeUZpCOg5DeW7/Ww==, figureFileBig=Gi2p61FqdEQWz/JvR4DZ2w==, tableContent=null), ArticleFig(id=1210935053270512240, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.4, caption=
N2 adsorption and desorption isotherms of PI powders, figureFileSmall=aYzRyWoVR3vlZ4/pIqx6GA==, figureFileBig=QmDNI7HqMkTWaMKVvM3qKw==, tableContent=null), ArticleFig(id=1210935053366981236, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图4, caption=
PI粉末的N2吸附和脱附等温线, figureFileSmall=aYzRyWoVR3vlZ4/pIqx6GA==, figureFileBig=QmDNI7HqMkTWaMKVvM3qKw==, tableContent=null), ArticleFig(id=1210935053450867317, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig. 5, caption=
XRD curves of PI films, figureFileSmall=gfjKf2dsixVFiN7lb0llyg==, figureFileBig=CJQAfrPSDiAOxj8MhC9CsQ==, tableContent=null), ArticleFig(id=1210935053513781880, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图5, caption=
PI薄膜的XRD曲线, figureFileSmall=gfjKf2dsixVFiN7lb0llyg==, figureFileBig=CJQAfrPSDiAOxj8MhC9CsQ==, tableContent=null), ArticleFig(id=1210935053580890747, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.6, caption=
Stress-strain curves of PI films, figureFileSmall=qd+EbMn6rs7evze0K6dQ0A==, figureFileBig=mVBnZU6ICf2KOP+a/0Fybw==, tableContent=null), ArticleFig(id=1210935053673165438, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图6, caption=
PI薄膜的应力-应变曲线, figureFileSmall=qd+EbMn6rs7evze0K6dQ0A==, figureFileBig=mVBnZU6ICf2KOP+a/0Fybw==, tableContent=null), ArticleFig(id=1210935053761245825, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.7, caption=
TGA curves of PI films, figureFileSmall=xQn1KbK3K//aYNNNkMAefQ==, figureFileBig=QQaKPqeFgNKkWM483/mqow==, tableContent=null), ArticleFig(id=1210935053828354693, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图7, caption=
PI薄膜的TGA曲线, figureFileSmall=xQn1KbK3K//aYNNNkMAefQ==, figureFileBig=QQaKPqeFgNKkWM483/mqow==, tableContent=null), ArticleFig(id=1210935053916435081, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.8, caption=
DMA curves of PI films, figureFileSmall=rjJcHNUyF+xHPT9miIkpLQ==, figureFileBig=CJzIu7PhKl8cvw21SJ3f9Q==, tableContent=null), ArticleFig(id=1210935053987738250, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图8, caption=
PI薄膜的DMA曲线, figureFileSmall=rjJcHNUyF+xHPT9miIkpLQ==, figureFileBig=CJzIu7PhKl8cvw21SJ3f9Q==, tableContent=null), ArticleFig(id=1210935054092595855, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Fig.9, caption=
Dielectric constant and dielectric loss factor as a function of frequency for PI films, figureFileSmall=0tFG5ILpPMgfoB22rta+7w==, figureFileBig=ae+H/qDNElhVR57Plq/f8g==, tableContent=null), ArticleFig(id=1210935054189064849, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=图9, caption=
PI薄膜的介电常数和介质损耗因数对频率依赖性, figureFileSmall=0tFG5ILpPMgfoB22rta+7w==, figureFileBig=ae+H/qDNElhVR57Plq/f8g==, tableContent=null), ArticleFig(id=1210935054285533845, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Tab.1, caption=
Solubility of PIs in organic solvents, figureFileSmall=null, figureFileBig=null, tableContent=
| 溶剂 | N-PI | 6F-PI | B-PI | P-PI |
|---|
| 丙酮 | - | + | - | - |
| 四氢呋喃(THF) | - | + | + | + |
| 二甲基亚砜(DMSO) | - | + | - | + |
| N,N-二甲基吡咯烷酮(NMP) | + | + | + | + |
| N,N-二甲基甲酰胺(DMF) | + | + | + | + |
| 甲醇 | - | - | - | - |
| 乙醇 | - | - | - | - |
| 三氯甲烷 | + | + | + | + |
), ArticleFig(id=1210935054369419928, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=表1, caption=
PI在有机溶剂中的溶解性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 溶剂 | N-PI | 6F-PI | B-PI | P-PI |
|---|
| 丙酮 | - | + | - | - |
| 四氢呋喃(THF) | - | + | + | + |
| 二甲基亚砜(DMSO) | - | + | - | + |
| N,N-二甲基吡咯烷酮(NMP) | + | + | + | + |
| N,N-二甲基甲酰胺(DMF) | + | + | + | + |
| 甲醇 | - | - | - | - |
| 乙醇 | - | - | - | - |
| 三氯甲烷 | + | + | + | + |
), ArticleFig(id=1210935054457500315, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Tab.2, caption=
Aggregate structure parameters and surface areas of PIs, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 层间距(Å) | 比表面积/(m2/g) | 自由体积分数 |
|---|
| N-PI | 5.92 | 25 | 0.165 |
| 6F-PI | 5.69 | 220 | 0.194 |
| B-PI | 5.67 | 16 | 0.164 |
| P-PI | 5.70 | 86 | 0.195 |
), ArticleFig(id=1210935054528803486, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=表2, caption=
PI的聚集态结构参数及比表面积
, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 层间距(Å) | 比表面积/(m2/g) | 自由体积分数 |
|---|
| N-PI | 5.92 | 25 | 0.165 |
| 6F-PI | 5.69 | 220 | 0.194 |
| B-PI | 5.67 | 16 | 0.164 |
| P-PI | 5.70 | 86 | 0.195 |
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Mechanical and thermal properties of the PI films, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 力学性能 | 热性能 |
|---|
| σm/MPa | Et/GPa | εb/% | Tg/℃ | T5%/℃ | T10%/℃ |
|---|
| N-PI | 64.81.6 | 2.930.07 | 7.10.9 | > 487 | 506 | 514 |
| 6F-PI | 82.61.7 | 2.460.04 | 5.80.8 | 338 | 501 | 514 |
| B-PI | 74.44.3 | 2.300.12 | 39.117 | 232 | 503 | 510 |
| P-PI | 68.13.1 | 1.320.20 | 73.86.1 | 455 | 504 | 512 |
), ArticleFig(id=1210935054683992741, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=表3, caption=
PI薄膜的力学性能和热性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 力学性能 | 热性能 |
|---|
| σm/MPa | Et/GPa | εb/% | Tg/℃ | T5%/℃ | T10%/℃ |
|---|
| N-PI | 64.81.6 | 2.930.07 | 7.10.9 | > 487 | 506 | 514 |
| 6F-PI | 82.61.7 | 2.460.04 | 5.80.8 | 338 | 501 | 514 |
| B-PI | 74.44.3 | 2.300.12 | 39.117 | 232 | 503 | 510 |
| P-PI | 68.13.1 | 1.320.20 | 73.86.1 | 455 | 504 | 512 |
), ArticleFig(id=1210935054776267431, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=EN, label=Tab.4, caption=
Dielectric properties of PI films at low frequency and high frequency, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 介电常数 | 介质损耗因数 |
|---|
| 1 kHz | 10 kHz | 1 MHz | 10 GHz | 1 kHz | 10 kHz | 1 MHz | 10 GHz |
|---|
| N-PI | 4.62 | 4.60 | 4.53 | 2.66 | 0.009 3 | 0.008 1 | 0.020 5 | 0.014 5 |
| 6F-PI | 2.68 | 2.65 | 2.63 | 2.59 | 0.003 5 | 0.003 1 | 0.010 1 | 0.011 1 |
| B-PI | 3.55 | 3.53 | 3.48 | 2.75 | 0.005 6 | 0.004 4 | 0.011 3 | 0.006 6 |
| P-PI | 4.03 | 4.00 | 3.89 | 2.46 | 0.008 4 | 0.007 2 | 0.015 8 | 0.017 4 |
), ArticleFig(id=1210935054847570602, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198664997489442978, language=CN, label=表4, caption=
PI薄膜在低频和高频下的介电性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| PI | 介电常数 | 介质损耗因数 |
|---|
| 1 kHz | 10 kHz | 1 MHz | 10 GHz | 1 kHz | 10 kHz | 1 MHz | 10 GHz |
|---|
| N-PI | 4.62 | 4.60 | 4.53 | 2.66 | 0.009 3 | 0.008 1 | 0.020 5 | 0.014 5 |
| 6F-PI | 2.68 | 2.65 | 2.63 | 2.59 | 0.003 5 | 0.003 1 | 0.010 1 | 0.011 1 |
| B-PI | 3.55 | 3.53 | 3.48 | 2.75 | 0.005 6 | 0.004 4 | 0.011 3 | 0.006 6 |
| P-PI | 4.03 | 4.00 | 3.89 | 2.46 | 0.008 4 | 0.007 2 | 0.015 8 | 0.017 4 |
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