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Polymers homopolymers

Acetylene Polymers Homopolymers of optically active acetylenes, including (/ )-153 synthesized by [RhCl(norbomadiene)]2 catalyst, show intense CD bands in the UV-visible region, probably based on a predominant helical sense of the main chain [204]. Excess single-handed helicity of the main chain can be induced for polymers of achiral acetylenes (154 and 155) by adding chiral molecules. The chiral induction is based on acid-base interaction or complex formation between the polymer and the additives [205-2081. [Pg.784]

Modified acrylamidopropylsulfonic acid polymers homopolymer of monomer... [Pg.664]

Chlorinated, sulfonated, chlorosulfonated or epoxidized polymers, homopolymers and copolymers of functionalized monomers, e.g. poly(methacryl aldehyde), poly(2,3-epoxypropyl acrylate), poly(4-vinylphenol), poly(propylene-co-10-unde-cene-l-ol), poly(butadiene-co-methacryl aldehyde), poly(butadiene-co-acrylic acid), poly(ethylene-co-alkyl acrylate), poly(alkyl acrylate-co-2,3-epoxypropyl acrylate), poly(alkyl acrylate-co-maleic anhydride), poly(styrene-co-4-vinylbenzyl chloride)... [Pg.131]

The polyanhydrides synthesized by melt condensation have fiber-forming properties in the molten state. They hydrolyze when exposed to air and this degradation is mainly controlled by the composition of the polymer. Homopolymers of aromatic monomers, such as CPH, degrade at a rate that is several orders of magnitude lower than that of homopolymers of aliphatic monomers. [Pg.2249]

Polymerization prepolymerization polymerization in the MZCR (homopolymer grades, medium-wide-very wide MWD, random copolymers and terpolymers, two composition polymers, homopolymer/random copolymer - twin random copolymers - random/heterophasic copolymers) (Figure 17.3). [Pg.568]

Bhowmik PK, Xu WH, Han HS (1994) Thermotropic liquid-crystalline main-chain viologen polymers—homopolymer of 4,4 -bipyridyl with ditosylate of trans-l,4-cyclohexanedimetha-nol and its copolymers with ditosylate of 1,8-octanediol. J Polym Sci A Polym Chem 32 ... [Pg.117]

Define the following terms monomer, polymer, homopolymer, copolymer. [Pg.991]

In the case of block polymer-homopolymer blends, we feel that applications of this type will continue to grow. We suggest that this growth will generate new block polymers with lower melt viscosities and other properties that will optimize both the blending processes and the properties of the blended product. [Pg.213]

The advantages to be expected from such a method are important. In fact, we shall see that this approach is very flexible. It enables us to treat, without special difficulties, monodis perse systems as well as systems with a given polydispersion, linear polymers and branched polymers, homopolymers and copolymers. Thus, a large investigation domain is covered by this method. [Pg.503]

Radusch, H.-J. (2002) Handbook of Thermoplastic Polymers Homopolymers, Copolymers, Blends, and Composites, Wiley-VCH Verlag GmbH, Weinheim, pp. 389-418,... [Pg.170]

Polypropylene is not one or even 100 products. Rather it is a multidimensional range of products with properties and characteristics interdependent on the type of polymer (homopolymers, random, or block copolymer), molecular weight and molecular weight distribution, morphology and crystalline structure, additives, fillers and reinforcing fillers, and fabrication techniques. [Pg.393]

TRADE NAMES PVK (Polysciences, Inc.), Luvican (BASF Corp.) CLASS Vinyl polymers homopolymers STRUaURE... [Pg.925]

Synonyms Acrylic acid homopolymer Acrylic acid polymer Acrylic acid, polymers Acrylic acid resin Acrylic polymer Acrylic polymer resins Acrylic resin Atactic poly(acrylic acid) PAA Polyacrylate Poly (acrylic acid) 2-Propenoic acid, homopolymer Propenoic acid polymer Propenoic acid, polymers, homopolymer IMinition Polymer of acrylic acid En rirical (CjHjOj),... [Pg.1288]

Propenoic acid, polymers, homopolymer. See Polyactylic acid 2-Propenoic acid, (tetrahydro-2-furanyl) methyl ester 2-Propenoic acid, tetrahydrofurfuryl ester. SeeTetrahydrofurfuryl acrylate 2-Propenoic acid, 3a,4,7,7a-tetrahydro-4,7-methano-1H-indenyl ester. [Pg.1319]

Tanaka, EL, Elashimoto, T. Ordered structures of block polymer/homopolymer mixtures. 3. Temperature dependence. Macromolecnles 24, 5713-5720 (1991)... [Pg.142]

One of the unique features of the chemistry of carbon is its ability to form long chains of atoms. This property is the basis of an important area of industrial chemistry concerned with the manufacture of polymeric materials with a variety of properties see plastics). The molecules in these materials are essentially long chains of atoms of various lengths. In some polymers, cross-linkage occurs between the chains. Synthetic polymers are formed by chemical reactions in which individual molecules (monomers) join together to form larger units see POLYMERIZATION). Two types of polymer, homopolymers and heteropolymers, can be distinguished. [Pg.648]

Propenoic acid, polymer with 2-propenamide. See Acrylic acid/acrylamide copolymer 2-Propenoic acid, polymer with 2-propenenitrile, ammonium salt. See Ammonium acrylates/acrylonitrogens copolymer Propenoic acid, polymers, homopolymer. See Polyacrylic acid... [Pg.3724]

Ito M, Kikutani T. PEN structure and properties [Chapter 10] Flandhook of thermoplastic polymers homopolymers, copolymers, blends, and composites. Weinheim, Germany Wiley-VCH Verlag GmbH 2002. [Pg.198]

Table 2.4 A list of polymers (homopolymers and random copolymers), the S-S characteristic parameters P, V, and T ), as well as the difference between the measured and computed volumes (AV) averaged over the data s temperature range (AT) and pressure range (AP) (Rodgers 1993a, b)... Table 2.4 A list of polymers (homopolymers and random copolymers), the S-S characteristic parameters P, V, and T ), as well as the difference between the measured and computed volumes (AV) averaged over the data s temperature range (AT) and pressure range (AP) (Rodgers 1993a, b)...
With the Same Virgin Polymer (Homopolymer Blcmds). 1899... [Pg.1885]

In fact, transmission electron microscopy (TEM) observation showed that the size of the dispersed phases increases with increasing filler content in the nanocomposites (Fig. 1.3). It should be noted here that the dispersed phases in the nanocomposites illustrated in Fig. 1.3(b)-(e) are clearly smaller than the untreated Si02 (Fig. 1.3(a)), but they are still much larger than the size of the primary nano-Si02 particles (7mn). Therefore these dispersed phases are actually microcomposite agglomerates consisting of primary particles, grafting polymer, homopolymer, and a certain amount of matrix. [Pg.7]

ACRONYMS, TRADE NAME PVP, P4VP, Reillex CLASS Vinyl polymers homopolymers... [Pg.961]

AB Stereoblock PMMA Synthesized From MMA and TrMA. In order to determine how tacticity influences sterocomplex formation, DMA was replaced by MMA in the syntheses of PMMA A-B stereoblock polymers. Homopolymer analysis showed that syndiotactic content was 10% lower for PMMA synthesized from MMA than that prepared from DMA. The AB stereoblock pol)7mers of PMMA obtained from MMA and TrMA were synthesized in the same manner as those obtained from TrMA (Scheme 3), the exception being that MMA was substituted for DMA. [Pg.377]

G. C. Eastmond and D. G. Phillips, Macroscopic Phase Separation in Multicomponent Polymer Homopolymer Blends General Considerations Based on Studies of AB-Cross-linked Polymers, Polymer 20, 1501 (1979). Morphology, especially onion rings. [Pg.247]


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Polymer homopolymer

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