CRYSTAL-STRUCTURE OF FORM-III AND THE POLYMORPHISM OF ISOTACTIC POLY(4-METHYLPENTENE-1)

被引：33

作者：

DEROSA, C

BORRIELLO, A

VENDITTO, V

CORRADINI, P

机构：

[1] Dipartimento di Chimica, Universitá di Napoli “Federico II”, 80134 Napoli

来源：

MACROMOLECULES | 1994年 / 27卷 / 14期

关键词：

D O I：

10.1021/ma00092a028

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A preliminary model for the crystal structure of form III of isotactic poly(4-methylpentene-1) is suggested on the basis of structure factor calculations. Chains in 4(1) helical conformations are packed in a tetragonal unit cell with axes a = 19.38 angstrom and c = 6.98 angstrom; the space group is I4(1). The polymorphic behavior of poly(4-methylpentene-1) is discussed on the basis of conformational energy calculations on the isolated chain. The presence of different modifications is in accordance with energy minima present in the conformational energy map.

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页码：3864 / 3868

页数：5

相关论文

共 27 条

[1] INVESTIGATION OF SOLUTIONS AND GELS OF POLY(4-METHYL-1-PENTENE) IN CYCLOHEXANE AND DECALIN BY VISCOSIMETRY, CALORIMETRY, AND X-RAY-DIFFRACTION - A NEW CRYSTALLINE FORM OF POLY(4-METHYL-1-PENTENE) FROM GELS [J].

AHARONI, SM ;

CHARLET, G ;

DELMAS, G .

MACROMOLECULES, 1981, 14 (05) :1390-1394

[2] STRUCTURE AND OPTICAL ACTIVITY OF A CRYSTALLINE MODIFICATION OF ISOTACTIC POLY-(S)-4-METHYL)1-HEXENE [J].

BASSI, IW ;

BONSIGNORI, O ;

LORENZI, GP ;

PINO, P ;

CORRADINI, P ;

TEMUSSI, PA .

JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1971, 9 (02) :193-+

[3] EFFECT OF SOLVENT ON THE POLYMORPHISM OF POLY(4-METHYLPENTENE-1) .1. SOLUTION-GROWN SINGLE-CRYSTALS [J].

CHARLET, G ;

DELMAS, G ;

REVOL, JF ;

MANLEY, RS .

POLYMER, 1984, 25 (11) :1613-1618

[4] MODIFICATION-V OF POLY 4-METHYLPENTENE-1 FROM CYCLOPENTANE SOLUTIONS AND GELS [J].

CHARLET, G ;

DELMAS, G .

POLYMER BULLETIN, 1982, 6 (07) :367-373

[5] EFFECT OF SOLVENT ON THE POLYMORPHISM OF POLY(4-METHYLPENTENE-1) .2. CRYSTALLIZATION IN SEMI-DILUTE SOLUTIONS [J].

CHARLET, G ;

DELMAS, G .

POLYMER, 1984, 25 (11) :1619-1625

[6]

CORRADINI P, 1992, ADV POLYM SCI, V100, P183

[7] ENERGETIC CALCULATIONS OF CHAIN CONFORMATION OF ISOTACTIC POLYMERS OF OLEFINS IN CRYSTALLINE STATE [J].

CORRADINI, P ;

PETRACCONE, V ;

PIROZZI, B .

EUROPEAN POLYMER JOURNAL, 1976, 12 (12) :831-836

[8] CONFORMATIONAL AND PACKING ENERGY CALCULATIONS ON CRYSTALLINE ISOTACTIC 1,2-POLY(1,3-BUTADIENE), POLYSTYRENE AND POLY(METHYLVINYL ETHER) - COMPARISON WITH MODIFICATION-1 OF POLY(1-BUTENE) [J].

CORRADINI, P ;

DEROSA, C ;

ZHI, G ;

NAPOLITANO, R ;

PIROZZI, B .

EUROPEAN POLYMER JOURNAL, 1985, 21 (07) :635-639

[9] THE ROLE OF INTRAMOLECULAR AND INTERMOLECULAR INTERACTIONS IN DETERMINING THE CONFORMATION AND MODE OF PACKING OF CRYSTALLINE POLYMERS .1. POLY(CIS-1,4-BUTADIENE) [J].

CORRADINI, P ;

NAPOLITANO, R ;

PETRACCONE, V ;

PIROZZI, B ;

TUZI, A .

EUROPEAN POLYMER JOURNAL, 1981, 17 (12) :1217-1224

[10]

CORRADINI P, 1968, STEREOCHEMISTRY MACR, V3