Chlorinated polybutene

Chemical resistance is generally good up to 60°C but, as with the other polyolefins, polybutenes are attacked by oxidizing acids, chlorinated solvents, certain oxidants and aromatic hydrocarbons. 

Pure PVC is the linear homopolymer of vinyl chloride, as we can see in Figure 4.32. The industrial polymers are amorphous with a backbone identical to those of polyethylene, polypropylene and polybutene but the pendant chlorine atoms result in a polar polymer. The theoretical chlorine content is roughly 57%. 

Polyethylene (chlorinated PE see group 3) Polypropylene Polybutene-1 Polylsobutylene... 

ABS and PP are used as pipes and accessories. Polybutene and cross-linked PE are utilized for hot water applications. Chlorinated PVC is also used for this purpose, however, it is sensitive to impact. 

Hydrogenated rosin Methyl rosinate Methylstyrene/vinyltoluene copolymer Paraffin, chlorinated Pentaerythrityl hydrogenated rosinate Pentaerythrityl rosinate Polybutene Polydipentene Polyvinyl methyl ether Rosin Sorbeth-20 Terpene resin tackifier, adhesives EVA-based Dipentene-styrene resin tackifier, adhesives rubber-based Dipentene-styrene resin tackifier, amorphous polyolefins C5 hydrocarbon resin, aliphatic tackifier, antifouling paints Methyl hydrogenated rosinate tackifier, butyl rubbers C5 hydrocarbon resin, aliphatic tackifier, caulks C5 hydrocarbon resin, aliphatic tackifier, cement... 

Because of their relatively lower cost, plastic pipes have for the most part replaced metal pipes in residential construction. Rigid PVC, chlorinated PVC (CPVC), PE, ABS, and polybutene (PB) plastic pipes are commonly used. GRP thermoset pipes are also used in civil engineering. They are lighter compared to available alternatives and much simpler to install, have relatively lower EE, and save energy by reducing... 

Cohen obtained an alkenylation product in a stagewise addition of anhydride and CI2 catalyst, with polybutene as starting olefin. Since this effort was product related, no conclusions can be derived on the role of radicals in the process, since chlorine can give rise to a chain process.Use of Br2 and HBr have also been reported. 

Polybutene behaves similarly to polyethylene or polypropylene under the effect of chemicals. Its non-polar character renders polybutene resistant to acids (except oxidizing acids), bases, detergents, oils, fats, alcohols, ketones. Polybutene is not resistant to oxidizing acids and other oxidants, aromatic and chlorinated hydrocarbons as well as halogens. 

Abbreviations EDPM, ethyfene-diene-propylene monomer rubber HOPE, high density polyethylene LDPE, low density polyethylene LLDPE, linear low density polyethylene MDPE, medium density polyethylene PB-1, polybutene-1, PE, polyethylene PIB, polyisobutylene PP, polypropylene PS, polystyrene PTFE, polytetrafluoroethylene PVC, polyvinyl chloride RIM, reaction injection molding CPE-chlorinated PE CPP, chlorinated PP P4MP, poly-4-methylpentene- 1. 

A variety of plasticizers can be used in adhesives and sealants as to their primary resin type. Paraffinic oils, phthalate esters, and polybutenes are typical plasticizers (Dostal 1990). Plasticizers for natural rubber adhesives, such as mineral oil or lanolin, are used to reduce the cost of the adhesive mass, and have a depressing effect on the peel adhesion (Satas 1999). Phthalates, chlorinated hydrocarbons, and aliphatic hydrocarbons are commonly used as plasticizers in urethane sealants (Dostal 1990). Most of sealants, except for silicones, contain plasticizers in their formulations. Silicone sealants can be plasticized only by low molecular weight silicone oils (Petrie 2000). 

Tacticity studies have been conducted on poly(3-methyl-l-butene) [120], poly(p-isopropyl-a-methyl styrene) [121], a-methyl styrene [122], polytetrafluoroethylene [123], polyacrylic acid [124], polymethylvinyl ethers [125], polyacrylonitrile [126, 127], polyvinyltrifluoro acetate [128], polyvinyl alcohol and its ethers [129, 130], isobutene-maleic anhydride [111], isobutene dimethyl fumerate [131], isobutene dimethyl maleate [131], polyacrylonitrile [127], ethylene - vinyl acetate [132-135], polyalkyl vinyl ethers [136, 137], ethyl-2-chloroacetate [133], poly-trans-1,3-pentadiene [138], isotactic-l-butene - propylene [139], butadiene - propylene [140], polybutene [141], polychloroprene [142], ethylene - vinyl chloride [143], chlorinated polyethylene [144, 145], poly-a-methyl styrene [146], styrene acrylic acid [147], a-methyl styrene - methacylonitrile [148], styrene acrylonitrile [149], styrene isobutene [150], poly(p-fluoro-a-methyl styrene) [151], polyarylamide-6 [152], PP - polyamide-6 [152], polystyrene oxide [153], polybutene [154], atraconic anhydride - p-chlorostyrene [155], styrene - maleic anhydride [156, 157], ethylene - vinyl acetate [158], polymethyl vinyl ether [159], propene - carbon monoxide [160], methyl(3,3,3-trifluoropropyl)siloxane [161], poly(diallyldimethyl ammonium chloride) [162], polypropene [163, 164], polyepichlorohydrin [165], maleic anhydride-p-chlorostyrene [166], polymethacrylonitrile [167] and polyvinyl acetate [168]. 

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