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1 The optimum operating condition and reaction medium of isoprene trimerization were established.
2 The epoxidation of styrene - isoprene block copolymer ( SIS ) in different organic solvents was studied.
3 The conversion of relevant standard emission factors of isoprene and monoterpene were made using G93 arithmetic technique,(www.Sentencedict.com) and the grade of these factors was classified.
4 Isoprene could be deeply hydrogenated to isopentane on nickel catalyst.
5 In order to utilize the primary components isoprene, cyclopentadiene and piperylene efficiently, the appropriate method for separation should be selected to gain pure monomer.
6 From the application of cyclopentadiene, dicyclopentadiene, isoprene and piperylene and the application of C5 petroleum resin, the paper analyzes the comprehensive application of cracking C5.
7 Development proposals of isoprene rubber in China were put forward.
8 A polyisoprene in which the isoprene units are joined in the 1,4 –manner and in which they occur in the cis isomeric form.
9 The application of liquid isoprene rubber(LIR) partly replacing NR by equal weight in bead filler of PC tire was investigated.
10 The effect of liquid isoprene rubber(LIR) on properties of NR/BR compound, physical properties and thermal air aging property of its vulcanizate was investigated and compared to that of aromatic oil.
11 Chlorination occurs adjacent to the isoprene units to form allylic chlorines.
12 The emission flux of isoprene in the rubber trees in wet season showed an obvious diurnal variation, and the clouds and precipitation could evidently decrease the emission flux of isoprene.
13 Using WAXD method, the crystalline behaviours of poly ( butadiene - co - isoprene ) ( Ln -- PBI ) at low temperature were studied.
14 Isoprenoid ( terpene ): Class of organic compounds made up of two or more structural units derived from isoprene.
15 A synthetic rubber produced by copolymerization of a butylene with isoprene, nearly impermeable to air and used in tires, inner tubes, and insulation.
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