Structural and morphological characterization of the crystallites from semicrystalline regions of poly (9,9′-dihexylfluorene)

被引：1

作者：

Ferreira, Andre ^{[1
]}

Turchetti, Denis ^{[2
]}

Santana, Alisson ^{[2
]}

Akcelrud, Leni ^{[2
]}

Mascarenhas, Yvonne ^{[3
]}

机构：

[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Mat Engn, 1100 Joao Dagnone Ave, BR-13563120 Sao Carlos, SP, Brazil

[2] Univ Fed Parana, Dept Chem, Paulo Scarpa Lab Polymer LaPPS, Curitiba, Parana, Brazil

[3] Univ Sao Paulo, Sao Carlos Inst Phys, Sao Carlos, Brazil

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2021年 / 26卷 / 08期

关键词：

Poly(9; 9'-dihexylfluorene); crystallite; unit cell; morphology; nanoparticles; OPTICAL-PROPERTIES; POLYFLUORENE; EMISSION; POLYANILINE; DIFFRACTION; SOLVENT; NANOPARTICLES; CONFORMATION; REFINEMENT; DEPENDENCE;

D O I：

10.1080/1023666X.2021.1968121

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The aim of this research was to analyze the crystallites of poly(9,9'-dihexylfluorene) (PHF). The pristine polymer was synthesized through the Suzuki cross-coupling polycondensation and the reprecipitation method. Through XRD measurements it was possible to determine the semicrystalline diffraction pattern of the polymer which after the structural adjustment by Le Bail method showed orthorhombic unit cells and crystallites with average sizes of 43.86 angstrom. Scanning electron microscopy (SEM), revealed spherical nanoparticles morphology with average diameters equal to 69.20 nm. The possible relationship between the fluorescent properties and the parallel alignment of the chains in the crystallites was determined through the absorption spectra in UV-Vis and photoluminescence.

引用

页码：682 / 691

页数：10

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