Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparative Temperature Rising Elution Fractionation and Cross-fractionation
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Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparative Temperature Rising Elution Fractionation and Cross-fractionation
Chinese Journal of Polymer ScienceVol. 33, Issue 11, Pages: 1586-1597(2015)
Affiliations:
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Yan-hu Xue, Shu-qin Bo, Xiang-ling Ji. Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparative Temperature Rising Elution Fractionation and Cross-fractionation[J]. Chinese Journal of Polymer Science, 2015, 33(11): 1586-1597.
DOI:
Yan-hu Xue, Shu-qin Bo, Xiang-ling Ji. Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparative Temperature Rising Elution Fractionation and Cross-fractionation[J]. Chinese Journal of Polymer Science, 2015, 33(11): 1586-1597.DOI: 10.1007/s10118-015-1709-9.
Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparative Temperature Rising Elution Fractionation and Cross-fractionation
Two polyethylene (PE) resins (samples A and B) are synthesized as high-speed extrusion coatings with similar minimum coating thickness and neck-in performance but different maximum coating speeds. Both samples are separated into seven fractions using preparative temperature rising elution fractionation. The microstructures of the original samples and their fractions are studied by high-temperature gel permeation chromatography
Fourier transform infrared spectroscopy
13
C nuclear magnetic resonance spectroscopy
differential scanning calorimetry
and successive self-nucleation/annealing thermal fractionation. Compared with sample B
sample A has a broader MWD
more LCB contents
and less SCB contents. Moreover
sample A contains slightly more 30 ℃and 50 ℃fractions with lower molecular weights
and more fractions at 75 ℃and 85 ℃with higher molecular weight. The chain structure and its distribution in the two PE resins are studied in detail
and the relationship between the chain structure and resin properties is also discussed.
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Related Author
Yan-hu Xue
Yan-di Fan
Hui Tian
Chun-Ji Wu
Bao-Li Wang
Feng-Bin Liu
Chun-Yu Zhang
Xue-Quan Zhang
Related Institution
University of Chinese Academy of Sciences
School of Applied Chemistry and Engineering, University of Science and Technology of China
State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science & Technology
State Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China