Relationship between sequence distribution and transesterification of PEN/PET random/block copolyesters

被引：47

作者：

Jun, HW ^{[1
]}

Chae, SH ^{[1
]}

Park, SS ^{[1
]}

Myung, HS ^{[1
]}

Im, SS ^{[1
]}

机构：

[1] Hanyang Univ, Grad Sch Adv Mat & Chem Engn, Dept Text Engn, Seoul 133179, South Korea

来源：

POLYMER | 1999年 / 40卷 / 06期

关键词：

PEN/PET random/block copolyesters; sequence distribution; transesterification;

D O I：

10.1016/S0032-3861(98)00374-7

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 random and block copolyesters of poly(ethylene 2,6 naphthalate) (PEN) and poly(ethylene terephthalate) (PET) are synthesized and studied by H-1-n.m.r., DSC, X-ray. The block length decreases and the degree of transesterification increases at a similar composition ratio. The melting point depressions occur with increasing the content of the other component, and melting peaks disappear at a similar composition ratio. The results of X-ray diffractograms match well with those of dyads fraction, block length, and DSC. It can be seen that a critical block length is needed for components in order to crystallize. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1473 / 1480

页数：8

共 15 条

[1] STUDIES OF MISCIBILITY, TRANSESTERIFICATION AND CRYSTALLIZATION IN BLENDS OF POLY(ETHYLENE-TEREPHTHALATE) AND POLY(ETHYLENE-2,6-NAPHTHALENE DICARBOXYLATE) [J].

ANDRESEN, E ;

ZACHMANN, HG .

COLLOID AND POLYMER SCIENCE, 1994, 272 (11) :1352-1362

[2] INTERPRETATION OF NEUTRON-SCATTERING RESULTS DURING TRANS-ESTERIFICATION REACTIONS [J].

BENOIT, HC ;

FISCHER, EW ;

ZACHMANN, HG .

POLYMER, 1989, 30 (03) :379-385

[3] CRYSTALLIZATION BEHAVIOR OF RANDOM BLOCK COPOLYMERS OF POLY(BUTYLENE TEREPHTHALATE) AND POLY(TETRAMETHYLENE ETHER GLYCOL) [J].

BRIBER, RM ;

THOMAS, EL .

POLYMER, 1985, 26 (01) :8-16

[4] BASIS FOR MISCIBILITY IN POLYESTER-POLYCARBONATE BLENDS [J].

CRUZ, CA ;

BARLOW, JW ;

PAUL, DR .

MACROMOLECULES, 1979, 12 (04) :726-731

[5] THE TRANS-ESTERIFICATION OF BISPHENOL-A POLYCARBONATE (PC) AND POLYBUTYLENE TEREPHTHALATE (PBTP) - A NEW ROUTE TO BLOCK COPOLYCONDENSATES [J].

DEVAUX, J ;

GODARD, P ;

MERCIER, JP .

POLYMER ENGINEERING AND SCIENCE, 1982, 22 (04) :229-233

[6]

DEVAUX J, 1982, J POLYM SCI PP, P20

[7]

Flory P. J., 1981, J AM CHEM SOC, V22, P918

[8] THEORY OF CRYSTALLIZATION IN COPOLYMERS [J].

FLORY, PJ .

TRANSACTIONS OF THE FARADAY SOCIETY, 1955, 51 (06) :848-857

[9]

KAGLER J, 1987, MACROMOLECULES, V20, P1116

[10] PHASE-BEHAVIOR AND TRANSREACTION STUDIES OF MODEL POLYESTER BISPHENOL-A POLYCARBONATE BLENDS .1. SYNTHESIS, END-CAPPING, AND CHARACTERIZATION OF POLY(2-ETHYL-2-METHYLPROPYLENE TEREPHTHALATE) [J].

KOLLODGE, JS ;

PORTER, RS .

MACROMOLECULES, 1995, 28 (12) :4089-4096

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