3- Methyl-l-pentene

Newer developments involve poly(4-methyl-l-pentene) (TPX), PS or PPE blends, and block copolymers. 

The synthesis of isotactic polymers of higher a-olefins was discovered in 1955, simultaneously with the synthesis of isotactic PP (1,2) syndiotactic polymers of higher a-olefins were first prepared in 1990 (3,4). The first commercial production of isotactic poly(l-butene) [9003-29-6] (PB) and poly(4-methyl-l-pentene) [9016-80-2] (PMP) started in 1965 (5). 

Table 1. Physical Properties of 1-Butene and 4-Methyl-l-Pentene...

Kennedy, J. P. and Johnston, J. E. The Cationic Isomerization Polymerization of 3-Methyl-1-butene and 4-Methyl-l-pentene. Vol. 19, pp. 57—95. 

Figure 2.10 Maps of conformational energy of various isotactic polymers as function of backbone torsion angles 0i and 02 (a) Isotactic polystyrene, (b) polypropylene, (c) poly(l-butene), and (d) poly(4-methyl-l-pentene). Succession of torsion angles. .. 0i020i02 [s(M/N) symmetry] has been assumed. Isoenergetic curves are reported every 10 (a,c,d) or 5 (b) kJ/mol of monomeric units with respect to absolute minimum of each map assumed as zero.

Recently, a similar analysis of the conformational energy has been performed also for various new syndiotactic polymers.27,47 The conformational energy maps of syndiotactic polypropylene (sPP),48 polystyrene (sPS),49 poly butene (sPB),25 and poly(4-methyl-l-pentene) (sP4MP)26 are reported in Figure 2.12. A line repetition group s(M/N)2 for the polymer chain, and, hence, a succession of the torsion angles. .. 0i, 0i, 02, 02,..., has been... 

In the crystal structures of many other isotactic polymers, with chains in threefold or fourfold helical conformations, disorder in the up/down positioning of the chains is present. Typical examples are isotactic polystyrene,34,179 isotactic poly(l-butene),35 and isotactic poly(4-methyl-l-pentene).39,40,153,247... 

Photolytic. Atkinson and Carter (1984) reported a rate constant of 1.06 x 10 cm /molecule-sec for the reaction of 4-methyl-l-pentene in the atmosphere. 

Source California Phase II reformulated gasoline contained 4-methyl-l-pentene at a concentration of 300 mg/kg (Schauer et al., 2002). 

Indenopyrene, see Indeno[l,2,3-crf pyrene l//-Indole, see Indole Indolene, see Indoline Inexit, see Lindane Inhibisol, see 1,1,1-Trichloroethane Insecticide 497, see Dieldrin Insecticide 4049, see Malathion Insectophene, see a-Endosulfan, p-Endosulfan Intox 8, see Chlordane Inverton 245, see 2,4,5-T lodomethane, see Methyl iodide IP, see Indeno[l,2,3-crf pyrene IP3, see Isoamyl alcohol Ipaner, see 2,4-D IPE, see Isopropyl ether IPH, see Phenol Ipersan, see Trifluralin Iphanon, see Camphor Isceon 11, see Trichlorofluoromethane Isceon 122, see Dichlorodifluoromethane Iscobrome, see Methyl bromide Iscobrome D, see Ethylene dibromide Isoacetophorone, see Isophorone a-Isoamylene, see 3-Methyl-l-butene Isoamyl ethanoate, see Isoamyl acetate Isoamylhydride, see 2-Methylbutane Isoamylol, see Isoamyl alcohol Isobac, see 2,4-Dichlorophenol Isobenzofuran-l,3-dione, see Phthalic anhydride 1,3-Isobenzofurandione, see Phthalic anhydride IsoBuAc, see Isobutyl acetate IsoBuBz, see Isobutylbenzene Isobutane, see 2-Methylpropane Isobutanol, see Isobutyl alcohol Isobutene, see 2-Methylpropene Isobutenyl methyl ketone, see Mesityl oxide Isobutyl carbinol, see Isoamyl alcohol Isobutylene, see 2-Methylpropene Isobutylethylene, see 4-Methyl-l-pentene Isobutyl ketone, see Diisobutyl ketone Isobutyl methyl ketone, see 4-Methyl-2-pentanone Isobutyltrimethylmethane, see 2,2,4-Trimethylpentane Isocumene, see Propylbenzene Isocyanatomethane, see Methyl isocyanate Isocyanic acid, methyl ester, see Methyl isocyanate Isocyanic acid, methylphenylene ester, see 2,4-Toluene-diisocyanate... 

Methyl-l-amylene, see 4-Methyl-l-pentene Methyl amyl ketone, see 2-Heptanone Methyl n-amyl ketone, see 2-Heptanone 2-Methylaniline, see o-Tolnidine AtMethylaniline, see Methylaniline o-Methylaniline, see o-Tolnidine Methylanon, see oMethylcyclohexanone p-Methylanthracene, see 2-Methylanthracene 2-Methylbenzenamine, see o-Tolnidine WMethylbenzenamine, see Methylaniline o-Methylbenzenamine, see o-Tolnidine Methylbenzene, see Tolnene Methylbenzol, see Tolnene p-Methylbivinyl, see 2-Methyl-l,3-bntadiene 2-Methylbntadiene, see 2-Methyl-l,3-bntadiene 2-Methyl-3-bntene, see 3-Methyl-l-bntene Methyl-3-bntan-l-ol, see Isoamyl alcohol 2-Methyl-4-bntanol, see Isoamyl alcohol... 

Methyl-2-pentene-2-one, see Mesityl oxide 4-Methyl-2-pentyl acetate, see sec-Hexyl acetate 4-Methyl-l-pentylene, see 4-Methyl-l-pentene Methyl pentyl ketone, see 2-Heptanone Methylpentylmethylene, see Methylcyclopentane a-Methylphenanthrene, see 1-Methylphenanthrene... 

UN 1897, see Tetrachloroethylene UN 1915, see Cyclohexanone UN 1916, see Bis(2-chloroethoxy)methane. Bis(2-chloroethyl) ether UN 1917, see Ethyl acrylate UN 1918, see Isopropylbenzene UN 1919, see Methyl acrylate UN 1920, see Nonane UN 1941, see Dibromodiflnoromethane UN 1969, see 2-Methylpropane UN 1978, see Propane UN 1991, see Chloroprene UN 1992, see 2-Chloroethyl vinyl ether UN 1993, see 2,3-Dimethylpentane, 3,3-Dimethylpentane, 4 Ethylmorpholine, 2-Ethylthiophene, Indan, Isobutylbenzene, 2-Methylhexane, 3-Methylhexane, 2-Methyl 1 pentene, 4-Methyl-l-pentene, 1,4-Pentadiene, cis 2 Pentene, frans-2-Pentene, 1,2,4-Trimethylbenzene UN 2018, see 4-Chloroaniline UN 2019, see 4-Chloroaniline... 

Liu and Zhong introduced a number of QSPR models based on molecular connectivity indices [151, 152], In a first iteration, the researchers developed polymer-dependent correlations descriptors were calculated for a set of solvents and models were developed per polymer type [151], Polymer classes under consideration were polystyrene, polyethylene, poly-1-butene, poly-l-pentene, poly(4-methyl-l-pentene), polydimethylsiloxane, and polyisobutylene. As the authors fail to provide any validation for their models, it is difficult to asses their predictive power. In a subsequent iteration and general expansion of this study, mixed and therefore more general models based on the calculated connectivity indices of both solvent and polymers were developed. While it is unclear from the paper which polymer representation was used for the calculation of the connectivity indices, the best regression model (eight parameter model) yields only acceptable predictive power (R = 0.77, = 0.77, s = 34.47 for the training set, R = 0.75... 

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