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Issue 100, 2015
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Ladder- and bridge-like polynorbornenes with phosphate linkers: facile one-pot synthesis and excellent properties

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Abstract

A facile one-pot synthesis of a novel bridge-like polymer was accomplished by a sequential ring-opening metathesis polymerization (ROMP) and acyclic diene metathesis (ADMET) polymerization. A telechelic double-stranded poly(norbornene dicarboximide) (PNBI) with two terminal alkenyl groups was first prepared through the third generation Grubbs catalyst-mediated ROMP of a bis(NBI) derivative bearing a phosphate linker, in the presence of a symmetrical multifunctional terminating agent, and was then utilized as a macromonomer in the subsequent ADMET polymerization to yield a bridge-like polymer consisting of a non-conjugated polyolefin backbone and separated double-stranded PNBI. According to the TGA test, the amount of residual carbonaceous mass also increased with the molecular weight of the resultant polymers, indicating excellent thermal stability. The micro-scale combustion calorimetry and limiting oxygen index tests also displayed a superior flame retardant performance.

Graphical abstract: Ladder- and bridge-like polynorbornenes with phosphate linkers: facile one-pot synthesis and excellent properties

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Publication details

The article was received on 14 Aug 2015, accepted on 15 Sep 2015 and first published on 15 Sep 2015


Article type: Paper
DOI: 10.1039/C5RA16415J
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RSC Adv., 2015,5, 81986-81993

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    Ladder- and bridge-like polynorbornenes with phosphate linkers: facile one-pot synthesis and excellent properties

    L. Ding, J. Zhang, L. Wang and C. Wang, RSC Adv., 2015, 5, 81986
    DOI: 10.1039/C5RA16415J

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