SYNTHESIS AND CHARACTERIZATION OF A FLAME RETARDANT HYPERBRANCHED POLYETHER

Jyotishmoy Borah; Chuan-sheng Wang

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SYNTHESIS AND CHARACTERIZATION OF A FLAME RETARDANT HYPERBRANCHED POLYETHER

Papers | Updated：2021-06-21

- SYNTHESIS AND CHARACTERIZATION OF A FLAME RETARDANT HYPERBRANCHED POLYETHER
- Vol. 28, Issue 1, Pages: 107-118(2010)
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- Published：20 January 2010
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Jyotishmoy Borah, Chuan-sheng Wang. SYNTHESIS AND CHARACTERIZATION OF A FLAME RETARDANT HYPERBRANCHED POLYETHER[J]. 2010, 28(1): 107-118.
DOI：

Jyotishmoy Borah, Chuan-sheng Wang. SYNTHESIS AND CHARACTERIZATION OF A FLAME RETARDANT HYPERBRANCHED POLYETHER[J]. 2010, 28(1): 107-118. DOI：

摘要

A brominated hyperbranched polyether has been synthesized from cyanuric chloride and sodium salt of tetrabromobisphenol-A by an A2 + B3 approach. The synthesized polyether was characterized by 1H-NMR

13C-NMR

FTIR spectroscopy and X-ray diffraction studies

measurements of solution viscosity

molecular weight and solubility and elemental and thermogravimetric analyses. The flame retardancy of the synthesized polyether and its blends with commercially available plasticized poly(vinyl chloride) (PVC) and low density polyethylene (LDPE) was investigated by measurements of limiting oxygen index (LOI) value and thermogravimetric analysis. The properties are compared with a non-halogenated similar type of bisphenol-A based aromatic polyether after blending at different dose levels with the same base polymers. The LOI values of these blends indicated that these hyperbranched polyethers acted as flame retardant additives

and antimony trioxide had prominent synergistic effect with the bromo hyperbranched polyether for the above base polymers

and an increment of 4 to 6 units in LOI values was observed.

Abstract

A brominated hyperbranched polyether has been synthesized from cyanuric chloride and sodium salt of tetrabromobisphenol-A by an A2 + B3 approach. The synthesized polyether was characterized by 1H-NMR

13C-NMR

FTIR spectroscopy and X-ray diffraction studies

measurements of solution viscosity

and antimony trioxide had prominent synergistic effect with the bromo hyperbranched polyether for the above base polymers

and an increment of 4 to 6 units in LOI values was observed.

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