Influence of Amorphous Polymer Nanoparticles on the Crystallization Behavior of Poly(vinyl alcohol) Nanocomposites

被引：15

作者：

Lee, Kyung Jin ^{[1
]}

Lee, Jihye ^{[1
]}

Hong, Jin-Yong ^{[1
]}

Jang, Jyongsik ^{[1
]}

机构：

[1] Seoul Natl Univ, Coll Engn, Sch Chem & Biol Engn, Seoul 151742, South Korea

来源：

MACROMOLECULAR RESEARCH | 2009年 / 17卷 / 07期

关键词：

semicrystalline polymer; nanocomposite; fourier transform infrared spectroscopy; polypyrrole nanoparticle; poly(vinyl alcohol); NONISOTHERMAL CRYSTALLIZATION; ISOTHERMAL CRYSTALLIZATION; MELTING BEHAVIOR; ORIENTED CRYSTALLIZATION; KINETICS; POLYPYRROLE; MORPHOLOGY; BLENDS; DISPERSIONS; NANOFILLERS;

D O I：

10.1007/BF03218895

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 crystallization behavior of poly(vinyl alcohol) (PVA) in the presence and absence of polypyrrole nanoparticles (PPy NPs) was investigated in terms of the heterogeneous nucleation effect of PPy NPs using FTIR, X-ray diffraction, differential scanning calorimeter and polarized optical microscope analysis. PPy NPs were prepared by dispersion polymerization method stabilized by PVA in aqueous solution. A polymer nanocomposite with uniform dispersity could be readily obtained due to the enhanced compatibility between the filler and matrix. Compared with the PPy NP-absent PVA, the PPy NP/PVA nanocomposite exhibited an enhanced degree of crystallinity. The degree of crystallinity increased up to 17% at the PPy NP concentration of 1 wt%, compared to the pristine PVA. The PPy NP acted as an effective nucleating agent during the crystallization process, thereby enhancing the degree and rate of crystallization. The kinetics study of the crystallization also revealed the decreased value of the Avrami coefficient in the case of the PPy NP/PVA nanocomposite.

引用

页码：476 / 482

页数：7

共 49 条

[1]

ARMES SP, 1987, J CHEM SOC CHEM COMM, P288

[2] AQUEOUS DISPERSIONS OF ELECTRICALLY CONDUCTING MONODISPERSE POLYPYRROLE PARTICLES [J].

ARMES, SP ;

MILLER, JF ;

VINCENT, B .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1987, 118 (02) :410-416

[3] Kinetics of phase change I - General theory [J].

Avrami, M .

JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (12) :1103-1112

[4]

Avrami M., 1940, J. Chem. Phys, V8, P212, DOI [DOI 10.1063/1.1750631, 10.1063/1.1750631]

[5] Crystallization-induced sequential reordering in poly(trimethylene terephthalate)/polycarbonate blends [J].

Bae, WJ ;

Jo, WH ;

Park, YH .

MACROMOLECULAR RESEARCH, 2002, 10 (03) :145-149

[6] Swelling behavior and drug release of poly(vinyl alcohol) hydrogel cross-linked with poly(acrylic acid) [J].

Byun, Hongsik ;

Hong, Byungpyo ;

Nam, Sang Yong ;

Jung, Sun Young ;

Rhim, Ji Won ;

Lee, Sang Bong ;

Moon, Go Young .

MACROMOLECULAR RESEARCH, 2008, 16 (03) :189-193

[7] Thermal stability, crystallization, structure and morphology of syndiotactic 1,2-polybutadiene/organoclay nanocomposite [J].

Cai, Jiali ;

Yu, Qing ;

Han, Ying ;

Zhang, Xuequan ;

Jiang, Liansheng .

EUROPEAN POLYMER JOURNAL, 2007, 43 (07) :2866-2881

[8] Transcrystalline regions in the vicinity of nanofillers in polyamide-6 [J].

Dasari, Aravind ;

Yu, Zhong-Zhen ;

Mai, Yiu-Wing .

MACROMOLECULES, 2007, 40 (01) :123-130

[9]

Hong PD, 2001, J APPL POLYM SCI, V79, P1113, DOI 10.1002/1097-4628(20010207)79:6<1113::AID-APP150>3.0.CO

[10]

2-N

← 1 2 3 4 5 →