Synthesis of NR based Polyurethanes containing phosphorylated polymers as chain extenders
作者： Krishna V. Baratha , Arnaud Nourry , Jean-François Pilard
DOI: 10.1016/J.EURPOLYMJ.2015.07.030
关键词: Dispersity 、 Natural rubber 、 Reversible addition−fragmentation chain-transfer polymerization 、 Raft 、 Polymer 、 Fourier transform infrared spectroscopy 、 Raman spectroscopy 、 Materials science 、 Polymer chemistry 、 Homogeneous distribution
摘要: Abstract Natural Rubber (NR) based Polyurethanes (PU) with phosphorylated polymers as chain extenders were studied. Two types of investigated: poly-phosphonate and poly-phosphate synthesized using a RAFT methodology. molecular weights (5000 3000 g mol −1 ) targeted dispersity close to 1.1. The PU films prepared from liquid Hydroxyl Telechelic (HTNR) which was obtained through controlled degradation. mass percentage the added in film varied 1 8%. analysed FTIR Raman spectroscopy. A mapping particular used observe phosphorus distribution film. In case extender, results highlighted that only shorter lengths ( n = 13), homogeneous observed.
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