Supernucleation and Orientation of Poly(butylene terephthalate) Crystals in Nanocomposites Containing Highly Reduced Graphene Oxide

被引：36

作者：

Colonna, Samuele ^{[1
]}

Perez-Camargo, Ricardo A. ^{[2
,3
]}

Chen, Haiming ^{[4
]}

Liu, Guoming ^{[4
]}

Wang, Dujin ^{[4
]}

Mueller, Alejandro J. ^{[2
,3
,5
]}

Saracco, Guido ^{[1
]}

Fina, Alberto ^{[1
]}

机构：

[1] Politecn Torino, Dipartimento Sci Applicata & Tecnol, I-15121 Alessandria, Italy

[2] Univ Basque Country, UPV EHU, POLYMAT, San Sebastian 20018, Spain

[3] Univ Basque Country, UPV EHU, Fac Chem, Polymer Sci & Technol Dept, San Sebastian 20018, Spain

[4] Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[5] IKERBASQUE, Basque Fdn Sci, Bilbao, Spain

来源：

MACROMOLECULES | 2017年 / 50卷 / 23期

基金：

欧洲研究理事会;

关键词：

CYCLIC BUTYLENE TEREPHTHALATE; IN-SITU POLYMERIZATION; RING-OPENING POLYMERIZATION; POLYPROPYLENE ALPHA-PHASE; SELF-NUCLEATION; THERMAL FRACTIONATION; CARBON NANOTUBES; X-RAY; CRYSTALLIZATION KINETICS; MECHANICAL DEFORMATION;

D O I：

10.1021/acs.macromol.7b01865

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 ring-opening polymerization of cyclic butylene terephthalate into poly(butylene terephthalate) (pCBT) in the presence of reduced graphene oxide (RGO) is an effective method for the preparation of polymer nano composites. The inclusion of RGO nanoflakes dramatically affects the crystallization of pCBT, shifting crystallization peak temperature to higher temperatures and, overall, increasing the crystallization rate. This was due to a supernucleating effect caused by RGO, which is maximized by highly reduced graphene oxide. Furthermore, combined analyses by differential scanning calorimetry (DSC) experiments and wide-angle X-ray diffraction (WAXS) showed the formation of a thick alpha-crystalline form pCBT lamellae with a melting point of similar to 250 degrees C, close to the equilibrium melting temperature of pCBT. WAXS also demonstrated the pair orientation of pCBT crystals with RGO nanoflakes, indicating a strong interfacial interaction between the aromatic rings of pCBT and RGO planes, especially with highly reduced graphene oxide.

引用

页码：9380 / 9393

页数：14

共 63 条

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