Diogo de Carvalho Menezes, Pedro Henrique de Oliveira Santiago, Paulo Nunes Souza, Marcelo Barbosa Andrade, Cristiano Luis Pinto Oliveira, Sérgio Michielon Souza, Edgar Aparecido Sanches, Yvonne Primerano Mascarenhas
{"title":"Poly(4-methoxyaniline) composites: Investigating structure–property relationship towards semiconducting applications","authors":"Diogo de Carvalho Menezes, Pedro Henrique de Oliveira Santiago, Paulo Nunes Souza, Marcelo Barbosa Andrade, Cristiano Luis Pinto Oliveira, Sérgio Michielon Souza, Edgar Aparecido Sanches, Yvonne Primerano Mascarenhas","doi":"10.1002/app.56313","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Conjugated polymers are essential materials for the organic optoelectronic industry, serving a pivotal role in cutting-edge technologies. In this study, we conducted an integrated characterization approach, including spectroscopic techniques coupled with X-ray diffraction analysis to explore the structure–property relationship of poly(4-methoxyaniline), commonly referred to as poly(p-anisidine) or PPA, along with two distinct ceramic composites: PPA/α-Al<sub>2</sub>O<sub>3</sub> and PPA/Eu<sub>2</sub>O<sub>3</sub>. From powder X-ray diffraction analysis, a triclinic unit cell in space group P1 is proposed, after the whole powder pattern decomposition (WPPD) refinement is employed for the semicrystalline regions of the polymeric phases. Fractal-like structures are observed, following analysis of small-angle X-ray scattering (SAXS) data and scanning electron microscopy (SEM) from which we could infer the approximate sizes of the fractal clusters. Pure PPA displays a glass transition temperature (<i>T</i><sub>g</sub>) of approximately 80°C and an electrical conductivity slightly above 10<sup>−5</sup> S/cm. In contrast, the composite materials do not exhibit a glass transition temperature but perform better in terms of crystallinity and thermal stability. PPA/Eu<sub>2</sub>O<sub>3</sub> present conductivity enhancement exceeding tenfold, surpassing 10<sup>−4</sup> S/cm. These findings provide the baseline for further explorations on the development of organic electronic devices and sensors.</p>\n </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 1","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/app.56313","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Conjugated polymers are essential materials for the organic optoelectronic industry, serving a pivotal role in cutting-edge technologies. In this study, we conducted an integrated characterization approach, including spectroscopic techniques coupled with X-ray diffraction analysis to explore the structure–property relationship of poly(4-methoxyaniline), commonly referred to as poly(p-anisidine) or PPA, along with two distinct ceramic composites: PPA/α-Al2O3 and PPA/Eu2O3. From powder X-ray diffraction analysis, a triclinic unit cell in space group P1 is proposed, after the whole powder pattern decomposition (WPPD) refinement is employed for the semicrystalline regions of the polymeric phases. Fractal-like structures are observed, following analysis of small-angle X-ray scattering (SAXS) data and scanning electron microscopy (SEM) from which we could infer the approximate sizes of the fractal clusters. Pure PPA displays a glass transition temperature (Tg) of approximately 80°C and an electrical conductivity slightly above 10−5 S/cm. In contrast, the composite materials do not exhibit a glass transition temperature but perform better in terms of crystallinity and thermal stability. PPA/Eu2O3 present conductivity enhancement exceeding tenfold, surpassing 10−4 S/cm. These findings provide the baseline for further explorations on the development of organic electronic devices and sensors.
期刊介绍:
The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.