The effect of short chain branching on the rheological and thermal properties of olefin:: α-olefin copolymers

被引：7
|
作者：
Halász, L [1 ]
Vorster, O [1 ]
Belina, K [1 ]
机构：
[1] Tshwane Univ Technol, ZA-0001 Pretoria, South Africa
来源：
RHEOLOGICA ACTA | 2005年 / 44卷 / 04期
关键词：
olefin copolymers; short branching; rheological properties;
D O I：
10.1007/s00397-004-0427-y
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An important method of the modification of the properties of polyethylene and polypropylene is the copolymerisation with alpha-olefins. The alpha-olefin behaves as a short branch in the structure, and the rheological and thermal properties of copolymers change significantly. A new method is suggested to evaluate the rheological and thermal properties of copolymers on the basis of homopolymer properties, by introducing a short branch degree parameter. The zero shear viscosity, plateau modulus, fractional free volume, reptation tube diameter, glass transition temperature and thermodynamical melting point were calculated.
引用
收藏
页码：427 / 433
页数：7
相关论文
共 50 条
  • [31] Structure-property relationships for propylene α-olefin copolymers:: Effect of short branch length
    Cho, CJH
    Soares, JBP
    Tzoganakis, C
    ANTEC 2000: SOCIETY OF PLASTICS ENGINEERS TECHNICAL PAPERS, CONFERENCE PROCEEDINGS, VOLS I-III, 2000, : 1663 - 1666
  • [32] Analysis of Ethylene/1-Olefin Copolymers Made with Ziegler-Natta Catalysts by Deconvolution of Molecular Weight and Average Short Chain Branching Distributions
    Chen, Keran
    Mehdiabadi, Saeid
    Liu, Boping
    Soares, Joao B. P.
    MACROMOLECULAR REACTION ENGINEERING, 2016, 10 (03) : 206 - 214
  • [33] Effect of norbornene content on deformation properties and hot embossing of cyclic olefin copolymers
    Patrick W. Leech
    Xiaoqing Zhang
    Yonggang Zhu
    Journal of Materials Science, 2010, 45 : 5364 - 5369
  • [34] Mechanical properties of ethylene-alpha-olefin copolymers
    Fatou, JG
    Macia, IG
    Marco, C
    Gomez, MA
    Arribas, JM
    Fontecha, A
    Aroca, M
    Martinez, MC
    JOURNAL OF MATERIALS SCIENCE, 1996, 31 (12) : 3095 - 3107
  • [35] PHYSICAL PROPERTIES OF ETHYLENE-1-OLEFIN COPOLYMERS
    FOLT, VL
    SPE TRANSACTIONS, 1962, 2 (04): : 285 - 293
  • [36] CONFORMATIONAL PROPERTIES OF OLEFIN-SULFUR DIOXIDE COPOLYMERS
    STOCKMAYER, WH
    MATSUO, K
    HERLIHY, E
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 32 - 32
  • [37] Effect of norbornene content on deformation properties and hot embossing of cyclic olefin copolymers
    Leech, Patrick W.
    Zhang, Xiaoqing
    Zhu, Yonggang
    JOURNAL OF MATERIALS SCIENCE, 2010, 45 (19) : 5364 - 5369
  • [38] Propene/α-olefin and α,ω-diene copolymers: Comparison of structure and properties
    Knorr, J.
    Bornemann, S.
    Schimmel, T.
    Arnold, M.
    American Chemical Society, Polymer Preprints, Division of Polymer Chemistry, 2000, 41 (01): : 468 - 469
  • [39] Effect of chain transfer agent on microstructure and thermal properties of cyclic olefin copolymer with low comonomer content
    Seyed Mohammad Mahdi Mortazavi
    Griselda Barrera Galland
    Hosseinali Khonakdar
    Saeid Ahmadjo
    Sina Hayati
    Journal of Thermal Analysis and Calorimetry, 2022, 147 : 13341 - 13350
  • [40] Effect of chain transfer agent on microstructure and thermal properties of cyclic olefin copolymer with low comonomer content
    Mortazavi, Seyed Mohammad Mahdi
    Galland, Griselda Barrera
    Khonakdar, Hosseinali
    Ahmadjo, Saeid
    Hayati, Sina
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2022, 147 (23) : 13341 - 13350
12345