Mesophase-Mediated Crystallization of Poly(butylene-2,6-naphthalate): An Example of Ostwald's Rule of Stages

被引：50

作者：

Cavallo, Dario ^{[1
]}

Mileva, Daniela ^{[2
]}

Portale, Giuseppe ^{[3
]}

Zhang, Li ^{[4
]}

Balzano, Luigi ^{[5
]}

Alfonso, Giovanni C. ^{[4
]}

Androsch, Rene ^{[2
]}

机构：

[1] Eindhoven Univ Technol, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands

[2] Univ Halle Wittenberg, Ctr Engn Sci, D-06099 Halle, Germany

[3] Netherlands Org Sci Res NWO, DUBBLE CRG, European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] Univ Genoa, Dept Chem & Ind Chem, I-16146 Genoa, Italy

[5] DSM Ahead, Ctr Mat Sci, NL-6160 MD Geleen, Netherlands

来源：

ACS MACRO LETTERS | 2012年 / 1卷 / 08期

关键词：

THERMOTROPIC LIQUID-CRYSTALS; PHASE-BEHAVIOR; X-RAY; POLYESTERS; TRANSITION; KINETICS; ACID; UNIT; METASTABILITY; COPOLYESTERS;

D O I：

10.1021/mz300349z

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 investigation of poly(butylene-2,6-naphthalate) crystallization by means of chip-calorimetry and ultrafast wide-angle X-ray diffraction (WAXD) revealed the existence of two possible mechanisms. The formation Of the stable triclinic-alpha-phase occurs directly from the undercooled melt at law cooling rates/high crystallization temperature. At higher cooling rates a two-stage route is observed: crystallization is preceded by the formation of a mesomorphic phase from the isotropic melt The monotiopic behavior of poly(butylene-2,6-naphthalate), becoming apparent only under severe cooling conditions, obeys the well-known Ostwald's rule of stages.

引用

页码：1051 / 1055

页数：5

共 41 条

[1] Evaluation of the isoconversional approach to estimating the Hoffman-Lauritzen parameters from the overall rates of non-isothermal crystallization of polymers [J].

Achilias, DS ;

Papageorgiou, GZ ;

Karayannidis, GR .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 2005, 206 (15) :1511-1519

[2] THERMOTROPIC LIQUID-CRYSTAL POLYESTERS DERIVED FROM 4,4'-BIPHENYLDICARBOXYLIC ACID AND OXYALKYLENE SPACERS [J].

BELLO, A ;

PERENA, JM ;

PEREZ, E ;

BENAVENTE, R .

MACROMOLECULAR SYMPOSIA, 1994, 84 :297-306

[3] Recent experiments on a combined small-angle/wide-angle X-ray scattering beam line at the ESRF [J].

Bras, W ;

Dolbnya, IP ;

Detollenaere, D ;

van Tol, R ;

Malfois, M ;

Greaves, GN ;

Ryan, AJ ;

Heeley, E .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2003, 36 (01) :791-794

[4] Effect of cooling rate on the crystal/mesophase polymorphism of polyamide 6 [J].

Cavallo, Dario ;

Gardella, Lorenza ;

Alfonso, Giovanni C. ;

Portale, Giuseppe ;

Balzano, Luigi ;

Androsch, Rene .

COLLOID AND POLYMER SCIENCE, 2011, 289 (09) :1073-1079

[5] Real-Time WAXD Detection of Mesophase Development during Quenching of Propene/Ethylene Copolymers [J].

Cavallo, Dario ;

Portale, Giuseppe ;

Balzano, Luigi ;

Azzurri, Fiorenza ;

Bras, Wim ;

Peters, Gerrit W. ;

Alfonso, Giovanni C. .

MACROMOLECULES, 2010, 43 (24) :10208-10212

[6] Continuous Cooling Curves Diagrams of Propene/Ethylene Random Copolymers. The Role of Ethylene Counits in Mesophase Development [J].

Cavallo, Dario ;

Azzurri, Fiorenza ;

Floris, Roberto ;

Alfonso, Giovanni C. ;

Balzano, Luigi ;

Peters, Gerrit W. .

MACROMOLECULES, 2010, 43 (06) :2890-2896

[7] GLASS-TRANSITION TEMPERATURE OF COPOLYESTERS OF PET, PEN AND PHB AS DETERMINED BY DYNAMIC MECHANICAL ANALYSIS [J].

CHEN, D ;

ZACHMANN, HG .

POLYMER, 1991, 32 (09) :1612-1621

[8]

Cheng SZD, 2008, PHASE TRANSITIONS IN POLYMERS: THE ROLE OF METASTABLE STATES, P1

[9] Size effect of metastable states on semicrystalline polymer structures and morphologies [J].

Cheng, SZD ;

Zhu, L ;

Li, CY ;

Honigfort, PS ;

Keller, A .

THERMOCHIMICA ACTA, 1999, 332 (02) :105-113

[10]

Chiba T, 1999, J POLYM SCI POL PHYS, V37, P561, DOI 10.1002/(SICI)1099-0488(19990315)37:6<561::AID-POLB8>3.0.CO

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