Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Synthesis and Properties of Poly[4,4-bis(acetoxymethyl)-1,6-heptadiyne]

  • Kim, Yun-Hi (Gyeongsang National University, Research Institute of Industrial Technology)
  • Published : 1997.01.20
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Abstract

The polymerization of 4, 4-bis(acetoxymethyl)-1, 6-heptadiyne (BAH) was carried out by MoCl5 and WCl6 with various organometallic cocatalysts. MoCl5-based catalysts were more effective than WCl6-based ones for the cyclopolymerization of BAH. Poly(BAH) was characterized to have polymer backbone with conjugated double bond and cyclic structure by IR, UV-visible, and 1H-and 13C NMR spectroscopies. The polymer was stable up to 310 ℃ and 5 % weight loss show up at 350 ℃. The resulting dark violet polymer exhibited good solubility in common organic solvents and could be cast on a glass plate to give film with good mechanical properties. It was found that oxygen permeability (PO2) and permselectivity (PO2/PN2) of the resulting polymer were 15.2 barrer and 2.84, respectively.

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References

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  1. SYNTHESIS AND PROPERTIES OF POLY(1,6-HEPTADIYNE) HAVING A BULKY AND RIGID t-BUTYLBENZOYL GROUP vol.37, pp.10, 1997, https://doi.org/10.1081/ma-100101148