γ-Form Transcrystals of Poly(propylene) Induced by Individual Carbon Nanotubes

被引：14

作者：

Zhang, Shanju ^{[1
]}

Lin, Wei ^{[2
]}

Zhu, Lingbo ^{[2
]}

Wong, Ching-Ping ^{[2
]}

Bucknall, David G. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Polymer Text & Fiber Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2010年 / 211卷 / 12期

基金：

美国国家科学基金会;

关键词：

carbon nanotubes; crystallization; nanocomposites; polymorphism; transcrystals; ISOTACTIC POLYPROPYLENE; MACROSCOPIC FIBERS; CRYSTALLIZATION; NANOCOMPOSITES; BEHAVIOR; COMPOSITES; PHASE; ORIENTATION; MORPHOLOGY; POLYMERS;

D O I：

10.1002/macp.201000045

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

CNT-induced formation of transcrystals of gamma-PP are reported. Formation of these transcrystals occurred when PP was infiltrated into nanotube aerogel fibers to form polymer nanocomposites. The PP morphology and microstructure with particular focus on the interfacial region of the CNTs were investigated by means of SEM, DSC and WAXD. The transcrystalline supramolecular microstructures were observed around the individual nanotubes during quiescent melting crystallization. Microstructural analysis showed that gamma-form transcrystals of PP dominate the overall interfacial structure. The content of gamma-form transcrystals increased with increase in nanotube loading. The mechanical properties and electrical conductivities of the nanocomposites have been evaluated.

引用

页码：1348 / 1354

页数：7

共 43 条

[31] Electrical behavior of polypropylene/multiwalled carbon nanotube nanocomposites with low percolation threshold [J].

Tjong, S. C. ;

Liang, G. D. ;

Bao, S. P. .

SCRIPTA MATERIALIA, 2007, 57 (06) :461-464

[32] DEVELOPMENT OF GAMMA-CRYSTAL FORM IN RANDOM COPOLYMERS OF PROPYLENE AND THEIR ANALYSIS BY DSC AND X-RAY METHODS [J].

TURNERJONES, A .

POLYMER, 1971, 12 (08) :487-+

[33] Macroscopic fibers and ribbons of oriented carbon nanotubes [J].

Vigolo, B ;

Pénicaud, A ;

Coulon, C ;

Sauder, C ;

Pailler, R ;

Journet, C ;

Bernier, P ;

Poulin, P .

SCIENCE, 2000, 290 (5495) :1331-1334

[34] Carbon nanocapsules-reinforced syndiotactic polystyrene nanocomposites: Crystallization and morphological features [J].

Wang, Chi ;

Huang, Chien-Lin ;

Chen, Yu-Chen ;

Hwang, Gan-Lin ;

Tsai, Shih-Jung .

POLYMER, 2008, 49 (25) :5564-5574

[35] Structural phase transition of alkane molecules in nanotube composites [J].

Wei, Chenyu .

PHYSICAL REVIEW B, 2007, 76 (13)

[36] Structural ordering in nanotube polymer composites [J].

Wei, CY ;

Srivastava, D ;

Cho, K .

NANO LETTERS, 2004, 4 (10) :1949-1952

[37]

ZHANG S, 2009, MACROMOL CH IN PRESS, DOI DOI 10.1002/MACP.200900686

[38] Carbon nanotubes as liquid crystals [J].

Zhang, Shanju ;

Kumar, Satish .

SMALL, 2008, 4 (09) :1270-1283

[39] Macroscopic fibers of well-aligned carbon nanotubes by wet spinning [J].

Zhang, Shanju ;

Koziol, Krzysztof K. K. ;

Kinloch, Ian A. ;

Windle, Alan H. .

SMALL, 2008, 4 (08) :1217-1222

[40] Solid-state spun fibers and yarns from 1-mm long carbon nanotube forests synthesized by water-assisted chemical vapor deposition [J].

Zhang, Shanju ;

Zhu, Lingbo ;

Minus, Marilyn L. ;

Chae, Han Gi ;

Jagannathan, Sudhakar ;

Wong, Ching-Ping ;

Kowalik, Janusz ;

Roberson, Luke B. ;

Kumar, Satish .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (13) :4356-4362

← 1 2 3 4 5 →