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Title of Journal: Fibers Polym

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Abbravation: Fibers and Polymers

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The Korean Fiber Society

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DOI

10.1007/s11565-014-0215-2

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ISSN

1875-0052

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Synthesis of high performance phosphorine antioxid

Authors: SyangPeng Rwei Meng Long Liu
Publish Date: 2008/03/15
Volume: 9, Issue: 1, Pages: 1-6
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Abstract

Cyclic olefin copolymers mCOC produced using a metallocene catalyst have been developed since 1990 Besides their high cost and difficulty of processing oxidation and degradation are one of the critical problems in commercializing highTg mCOC products In this work a series of mCOCs whose Tg values were 132 °C 194 °C and 260 °C were synthesized successfully Additionally highperformance phosphorine antioxidants 14di6oxodibenzce12 oxaphosphorine benzene HPB and 25ditertbutyl14di6oxodibenzce12 oxaphosphorinebenzeneHTPB were synthesized The oxidation induction time OIT the carbonyl index CI and the yellowness index YI were determined by DSC FTIR and spectrophotometry respectively The results indicate that blending phosphorine antioxidants with hindered phenolic antioxidant increases the OIT from 318 to 441 mins and causes the synergy to exceed 180 The CI variation showed that the embrittlement time could be increased from 100 hrs to over 450 hrs by thermal aging at 140 °C Finally the YI dropped from 293 to 92 Briefly HTPB and HPB successfully synthesized herein exhibit a synergy with hindered phenolic agents in antioxidant performance for mCOC polymer

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  10. Manufacturing and physical properties of fire-retardant fibrous laminate thermal insulation
  11. Investigation of the effect of cupric chloride on thermal stabilization of polyamide 6 as carbon fiber precursor
  12. Synthesis and properties of Nylon 4/5 copolymers for hydrophilic fibers
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  14. Enzyme-aided wool dyeing: Influence of internal lipids
  15. Comparative study on the characteristics of knitted fabrics made of vortex-spun viscose yarns
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