Article(id=1304921974795432799, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2026.05.004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1748966400000, receivedDateStr=2025-06-04, revisedDate=1757606400000, revisedDateStr=2025-09-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1789047243068, onlineDateStr=2026-09-10, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789047243068, onlineIssueDateStr=2026-09-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789047243068, creator=13701087609, updateTime=1789047243068, updator=13701087609, issue=Issue{id=1304921832184897890, tenantId=1146029695717560320, journalId=1149653034449285133, year='2026', volume='59', issue='5', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789047209067, creator='13701087609', updateTime=1789118050557, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305218963043021063, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305218963043021064, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=30, endPage=38, ext={EN=ArticleExt(id=1304921975118394208, articleId=1304921974795432799, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Preparation and dielectric properties of block copolymerized polyimide, columnId=1190369066675179686, journalTitle=Insulating Materials, columnName=Material Research, runingTitle=null, highlight=null, articleAbstract=
In this paper, binary copolymerized polyimide precursors polyamic acid PAA-A and PAA-B were first synthesized using pyromellitic dianhydride (PMDA) with 4,4′-diaminodiphenyl ether (ODA) and p-phenylenediamine (PPDA), respectively. The corresponding polyimides PI-A and PI-B were then obtained via thermal amide cyclization. Subsequently, block copolymerized polyamide acid PAA-AB was obtained through the reaction of PAA-A and PAA-B, and block copolymerized polyimide PI-AB was also obtained through thermal amide cyclization. Finally, the chemical structure, aggregation structure, and cross-sectional morphology of the three PI were characterized, and their mechanical properties, dielectric properties, electric strength, and electronic structure were tested and analyzed. The results show that the introduction of the third monomer PPDA and ODA does not induce the formation of defects in PI-AB. Furthermore, due to the alteration in chemical structure, the molecular chain spacing of PI-AB slightly increases compared to that of PI-A, which results in a decrease in its glass transition temperature. The electric strength of PI-AB is 6.18% higher than that of PI-A. The dielectric loss factor of PI-AB remains below 0.07 in the frequency range. Moreover, the band gap of PI-AB is wider than that of PI-A, making electron excitation more difficult, which demonstrates that PI-AB has superior insulating properties.
, authors=Shikun HAI
1, Ruiyang LI
2, 3, authorsList=Shikun HAI, Ruiyang LI, authorCompany=null, 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, fund=null), CN=ArticleExt(id=1304921977991492473, articleId=1304921974795432799, tenantId=1146029695717560320, journalId=1149653034449285133, language=CN, title=嵌段共聚聚酰亚胺的制备及其介电性能研究, columnId=1190369066813591720, journalTitle=绝缘材料, columnName=材料研究, runingTitle=null, highlight=null, articleAbstract=
本文首先以均苯四甲酸酐(PMDA)分别与4,4′-二氨基二苯醚(ODA)和对苯二胺(PPDA)合成二元共聚聚酰亚胺前体聚酰胺酸PAA-A和PAA-B,再通过热酰亚胺环化分别得到聚酰亚胺PI-A和PI-B。随后通过PAA-A与PAA-B反应得到嵌段共聚聚酰胺酸PAA-AB,再同样通过热酰亚胺环化得到嵌段共聚聚酰亚胺PI-AB。最后表征3种PI的化学结构、聚集态结构和断面形貌,测试并分析3种PI的力学性能、介电性能、电气强度和电子结构。结果表明:第三单体PPDA、ODA的引入并没有引起PI-AB缺陷的形成,且由于化学结构的改变,PI-AB的分子链间距较PI-A略有增加,进而使其玻璃化转变温度较PI-A有所下降。PI-AB电气强度相较于PI-A提高了6.18%,PI-AB的介质损耗因数在频率范围内均低于0.07,PI-AB的禁带宽度较PI-A更大,电子不易跃迁,表明PI-AB具有更优异的绝缘性能。
, authors=海士坤
1, 李瑞阳
2, 3, authorsList=海士坤, 李瑞阳, authorCompany=null, correspAuthors=null, authorNote=
海士坤(1983-),男(回族),河南商丘人,副教授,主要从事高性能化学化工新材料的研究。
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19(42):2304310., articleTitle=Carboxylated poly(p-phenylene terephthalamide) reinforced polyetherimide for high-temperature dielectric energy storage, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1304922129712042357, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, xref=1, ext=[AuthorCompanyExt(id=1304922129720430966, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, companyId=1304922129712042357, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1商丘医学高等专科学校 公共学科教学部,河南 商丘 476000)]), AuthorCompany(id=1304922129946923384, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, xref=2, ext=[AuthorCompanyExt(id=1304922129980477817, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, companyId=1304922129946923384, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2河南工程学院 材料工程学院,河南 郑州 450007)]), AuthorCompany(id=1304922130085335419, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, xref=3, ext=[AuthorCompanyExt(id=1304922130093724028, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, companyId=1304922130085335419, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3College of Materials Science and Engineering, Donghua University, Shanghai 201620, China), AuthorCompanyExt(id=1304922130102112637, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, companyId=1304922130085335419, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3东华大学 材料科学与工程学院,上海 201620)])], figs=[ArticleFig(id=1304922131733696916, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.1, caption=
Preparation of binary homopolymers, figureFileSmall=qsre1qqPpTE6IXxvacKfEQ==, figureFileBig=fBY6dKIJkvxDhnjrrtMOnw==, tableContent=null), ArticleFig(id=1304922131792417173, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图1, caption=
二元均聚物的制备, figureFileSmall=qsre1qqPpTE6IXxvacKfEQ==, figureFileBig=fBY6dKIJkvxDhnjrrtMOnw==, tableContent=null), ArticleFig(id=1304922132023103895, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.2, caption=
Reaction flow chart of PI-AB, figureFileSmall=gIkH3fmnpBIQNOz/ACos6Q==, figureFileBig=NPyjjh1nhAUlsY6gYf1CAg==, tableContent=null), ArticleFig(id=1304922132086018456, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图2, caption=
PI-AB反应流程图, figureFileSmall=gIkH3fmnpBIQNOz/ACos6Q==, figureFileBig=NPyjjh1nhAUlsY6gYf1CAg==, tableContent=null), ArticleFig(id=1304922132153127321, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.3, caption=
Infrared spectra of PI-A and PI-AB, figureFileSmall=ZoMQK+UXTApJ+XRnVB1BUQ==, figureFileBig=1yA7AEwjzS//YGJ/MLguUQ==, tableContent=null), ArticleFig(id=1304922132429951386, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图3, caption=
PI-A和PI-AB的红外光谱图, figureFileSmall=ZoMQK+UXTApJ+XRnVB1BUQ==, figureFileBig=1yA7AEwjzS//YGJ/MLguUQ==, tableContent=null), ArticleFig(id=1304922132488671643, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.4, caption=
XRD spectra and interchain distance of PI-A, PI-B, and PI-AB, figureFileSmall=D5TPyRj3mL028+41g6IGQA==, figureFileBig=5/3F5IWxxps1sp5F718BCQ==, tableContent=null), ArticleFig(id=1304922132547391900, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图4, caption=
PI-A、PI-B与PI-AB的XRD谱图和分子链间距, figureFileSmall=D5TPyRj3mL028+41g6IGQA==, figureFileBig=5/3F5IWxxps1sp5F718BCQ==, tableContent=null), ArticleFig(id=1304922132618695069, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.5, caption=
DSC curves of PI-A and PI-AB, figureFileSmall=wzc3OMZLud0nOnysE89KtQ==, figureFileBig=/CF3+6sP7Ak+91OsbfDkIA==, tableContent=null), ArticleFig(id=1304922132832604574, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图5, caption=
PI-A与PI-AB的DSC曲线, figureFileSmall=wzc3OMZLud0nOnysE89KtQ==, figureFileBig=/CF3+6sP7Ak+91OsbfDkIA==, tableContent=null), ArticleFig(id=1304922132899713439, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.6, caption=
SEM images of PI-A, PI-B, and PI-AB, figureFileSmall=5JPrOd+A+d+nASGQQXlMXA==, figureFileBig=2Xck2Bl4mFJasTq+7SiCdQ==, tableContent=null), ArticleFig(id=1304922132966822304, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图6, caption=
PI-A、PI-B与PI-AB的SEM图, figureFileSmall=5JPrOd+A+d+nASGQQXlMXA==, figureFileBig=2Xck2Bl4mFJasTq+7SiCdQ==, tableContent=null), ArticleFig(id=1304922133264617889, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.7, caption=
AFM images of PI-A, PI-B, and PI-AB, figureFileSmall=S8QQYE2RGbrclekzEDi+8w==, figureFileBig=2NXhe7N/H34ZwjONslaouw==, tableContent=null), ArticleFig(id=1304922133335921058, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图7, caption=
PI-A、PI-B与PI-AB的AFM图, figureFileSmall=S8QQYE2RGbrclekzEDi+8w==, figureFileBig=2NXhe7N/H34ZwjONslaouw==, tableContent=null), ArticleFig(id=1304922133411418531, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.8, caption=
Stress-strain curves of PI-A and PI-AB, figureFileSmall=4xzh0nMhjQ/0fTXm5eV2hQ==, figureFileBig=bLcP2qapbd6SNnUpgzUKVA==, tableContent=null), ArticleFig(id=1304922133470138788, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图8, caption=
PI-A与PI-AB的应力-应变曲线图, figureFileSmall=4xzh0nMhjQ/0fTXm5eV2hQ==, figureFileBig=bLcP2qapbd6SNnUpgzUKVA==, tableContent=null), ArticleFig(id=1304922133671465381, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.9, caption=
Electric strength of PI-A and PI-AB, figureFileSmall=MUvtaXwKucZ1uP39ItvjYg==, figureFileBig=HFXnFOXJw/XEsJWIyGWneA==, tableContent=null), ArticleFig(id=1304922133734379942, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图9, caption=
PI-A与PI-AB的电气强度, figureFileSmall=MUvtaXwKucZ1uP39ItvjYg==, figureFileBig=HFXnFOXJw/XEsJWIyGWneA==, tableContent=null), ArticleFig(id=1304922133801488807, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.10, caption=
Dielectric constant, dielectric loss factor, and AC conductivity of PI-A and PI-AB, figureFileSmall=4AaebU2CimVKO2IL7NjEYA==, figureFileBig=L71TPQ0woFSCNvTF73RhdQ==, tableContent=null), ArticleFig(id=1304922134111867304, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图10, caption=
PI-A与PI-AB的介电常数、介质损耗因数和交流电导率, figureFileSmall=4AaebU2CimVKO2IL7NjEYA==, figureFileBig=L71TPQ0woFSCNvTF73RhdQ==, tableContent=null), ArticleFig(id=1304922134191559081, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.11, caption=
Schematic diagrams of molecular orbital energy levels and electrostatic potential distribution of PI-A, PI-B and PI-AB, figureFileSmall=W4WFESX5Ij/rX73ZUy0fHw==, figureFileBig=b+VC9nCwz5cMJosH/3BziQ==, tableContent=null), ArticleFig(id=1304922134262862250, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图11, caption=
PI-A、PI-B与PI-AB的分子轨道能级示意图及静电势分布, figureFileSmall=W4WFESX5Ij/rX73ZUy0fHw==, figureFileBig=b+VC9nCwz5cMJosH/3BziQ==, tableContent=null), ArticleFig(id=1304922134510326187, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Fig.12, caption=
Percentage of area in the electrostatic potential range of PI-A, PI-B, and PI-AB, figureFileSmall=oH3YQ6ujiXlX4JCR9Bs9gw==, figureFileBig=r6p4rWm68j45HPBctC1x4Q==, tableContent=null), ArticleFig(id=1304922134585823660, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=图12, caption=
PI-A、PI-B与PI-AB的静电势范围内的面积百分比, figureFileSmall=oH3YQ6ujiXlX4JCR9Bs9gw==, figureFileBig=r6p4rWm68j45HPBctC1x4Q==, tableContent=null), ArticleFig(id=1304922134648738221, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Table 1, caption=
Synthetic raw material dosage of PI-A
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 | NMP/mL | PMDA/g | ODA/g | nPMDA∶nODA |
|---|
| 用量 | 35 | 4.362 4 | 4.205 0 | 1∶1.05 |
), ArticleFig(id=1304922134707458478, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=表1, caption=
PI-A合成原料用量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 | NMP/mL | PMDA/g | ODA/g | nPMDA∶nODA |
|---|
| 用量 | 35 | 4.362 4 | 4.205 0 | 1∶1.05 |
), ArticleFig(id=1304922134791344560, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Table 2, caption=
Synthetic raw material dosage of PI-B
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 | NMP/mL | PMDA/g | PPDA/g | nPMDA∶nPPDA |
|---|
| 用量 | 35 | 4.580 5 | 2.162 8 | 1.05∶1 |
), ArticleFig(id=1304922134996865457, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=表2, caption=
PI-B合成原料用量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 | NMP/mL | PMDA/g | PPDA/g | nPMDA∶nPPDA |
|---|
| 用量 | 35 | 4.580 5 | 2.162 8 | 1.05∶1 |
), ArticleFig(id=1304922135068168626, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=EN, label=Table 3, caption=
Comparison of dielectric properties of PI with other relevant literatures
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | 介电常数 | 介质损耗因数 |
|---|
| PI-A | 3.22 | 0.008 0 |
| PI-AB | 3.27 | 0.010 0 |
| FPI-1[35] | 3.30 | 0.015 0 |
| FPI-2[35] | 3.20 | 0.014 0 |
| FPI-3[35] | 3.04 | 0.013 0 |
| FPI-4[35] | 3.03 | 0.010 0 |
| FPI-5 | 2.60 | 0.008 0 |
| co-FPI-10[36] | 2.70 | 0.005 0 |
| co-FPI-20[36] | 2.51 | 0.006 0 |
| co-FPI-30[36] | 2.41 | 0.006 0 |
| TPPI25[37] | 2.67 | 0.008 2 |
| TPPI50[37] | 2.70 | 0.007 8 |
| TPPI75[37] | 2.60 | 0.008 0 |
), ArticleFig(id=1304922135340798387, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921974795432799, language=CN, label=表3, caption=
与其他相关文献PI的介电性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | 介电常数 | 介质损耗因数 |
|---|
| PI-A | 3.22 | 0.008 0 |
| PI-AB | 3.27 | 0.010 0 |
| FPI-1[35] | 3.30 | 0.015 0 |
| FPI-2[35] | 3.20 | 0.014 0 |
| FPI-3[35] | 3.04 | 0.013 0 |
| FPI-4[35] | 3.03 | 0.010 0 |
| FPI-5 | 2.60 | 0.008 0 |
| co-FPI-10[36] | 2.70 | 0.005 0 |
| co-FPI-20[36] | 2.51 | 0.006 0 |
| co-FPI-30[36] | 2.41 | 0.006 0 |
| TPPI25[37] | 2.67 | 0.008 2 |
| TPPI50[37] | 2.70 | 0.007 8 |
| TPPI75[37] | 2.60 | 0.008 0 |
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