Thermal analysis of single-site polymers in binary blends of low-molecular-weight linear polyethylene and high-molecular-weight branched polyethylene

被引：13
|
作者：
Tanem, BS [1 ]
Stori, A
机构：
[1] Norwegian Univ Sci & Technol, Dept Machine Design & Mat Technol, Trondheim, Norway
[2] SINTEF Mat Technol, Dept Polymer & Composites, Oslo, Norway
来源：
THERMOCHIMICA ACTA | 2000年 / 345卷 / 01期
关键词：
polyethylene blends; single-site materials; DSC; ethylene-hexene copolymers; cocrystallization;
D O I：
10.1016/S0040-6031(99)00348-2
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The cocrystallization phenomenon has been studied by blending a low-molecular-weight linear polyethylene (LPE) with a high-molecular-weight lightly branched ethylene-hexene copolymer, as a function of blend composition and cooling rate. The materials are based on single-site catalysts. Differential scanning calorimetry indicates that the upper limit on the degree of branches for cocrystallization with LPE is lower than observed in blends with Ziegler-Natta based materials, in accordance with results obtained by other authors on different single-site blend systems. The effect of the cooling rate on blends with low LPE content is probed, and the observed behaviour is discussed in light of earlier observations on similar blends. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：73 / 80
页数：8
相关论文
共 50 条
  • [1] Rheological, thermal, and morphological properties of low-density polyethylene/ultra-high-molecular-weight polyethylene and linear low-density polyethylene/ultra-high-molecular-weight polyethylene blends
    Chen, Yang
    Zou, Huawei
    Liang, Mei
    Liu, Pengbo
    JOURNAL OF APPLIED POLYMER SCIENCE, 2013, 129 (03) : 945 - 953
  • [2] Polymer–Polymer Blends of Ultrahigh-Molecular-Weight Polyethylene and Low-Molecular-Weight High-Density Polyethylene: Synthesis, Morphology, and Properties
    T. M. Ushakova
    E. E. Starchak
    S. S. Gostev
    V. G. Grinev
    V. G. Krasheninnikov
    A. Ya. Gorenberg
    L. A. Novokshenova
    Russian Journal of Physical Chemistry B, 2020, 14 : 504 - 509
  • [3] THE MOLECULAR WEIGHT OF POLYETHYLENE AND OF OTHER HIGH-MOLECULAR-WEIGHT ORGANIC COMPOUNDS
    TREMBLAY, R
    SIRIANNI, AF
    PUDDINGTON, IE
    CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1958, 36 (05): : 725 - 730
  • [4] Drawn gel films of blends of ultrahigh-molecular-weight polyethylenes and low-molecular-weight short-chain branched polyethylene
    Yeh, J
    Lin, YL
    FanChiang, CC
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 1996, 197 (11) : 3531 - 3540
  • [5] ZIRCONIUM BETA-DIKETONATE METHYLALUMINOXANE SYSTEMS AS SINGLE-SITE CATALYSTS FOR THE PREPARATION OF HIGH-MOLECULAR-WEIGHT POLYETHYLENE
    JANIAK, C
    SCHARMANN, TG
    LANGE, KCH
    MACROMOLECULAR RAPID COMMUNICATIONS, 1994, 15 (08) : 655 - 658
  • [6] Whale high-molecular-weight and low-molecular-weight kininogens
    Semba, U
    Shibuya, Y
    Okabe, H
    Hayashi, I
    Yamamoto, T
    THROMBOSIS RESEARCH, 2000, 97 (06) : 481 - 490
  • [7] INACTIVATION OF HUMAN HIGH-MOLECULAR-WEIGHT AND LOW-MOLECULAR-WEIGHT UROKINASES - ANALYSIS OF THEIR ACTIVE-SITE
    REBOUDRAVAUX, M
    DESVAGES, G
    BIOCHIMICA ET BIOPHYSICA ACTA, 1984, 791 (03) : 333 - 341
  • [8] Polymer-Polymer Blends of Ultrahigh-Molecular-Weight Polyethylene and Low-Molecular-Weight High-Density Polyethylene: Synthesis, Morphology, and Properties
    Ushakova, T. M.
    Starchak, E. E.
    Gostev, S. S.
    Grinev, V. G.
    Krasheninnikov, V. G.
    Gorenberg, A. Ya.
    Novokshenova, L. A.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B, 2020, 14 (03) : 504 - 509
  • [9] Blends of single-site linear and branched polyethylene. I. Thermal characterisation
    Tanem, BS
    Stori, A
    POLYMER, 2001, 42 (12) : 5389 - 5399
  • [10] HIGH-MOLECULAR-WEIGHT LOW-DENSITY-POLYETHYLENE FILMS
    OPACICH, ML
    DOWD, LE
    PLASTICS ENGINEERING, 1983, 39 (03) : 51 - 51
12345