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Polymer Stiucture

In Fig. 9.1, the temperature dependences of elasticity modulus E for the studied HDPE have been adduced. As one can see, at comparable testing temperatures E value in case of quasistatic tests is about twice smaller, than in impact ones. Let us note that this distinction is not due to tests type. As it has been noted above, for HDPE with the same ciystalUnity degree at r=293 K E value can reach 1252 MPa [10]. Let us consider the physical grounds of this discrepancy. The value of fractal dimension of polymer stiucture, which is its main characteristic, can be determined by several methods appUcation. The first from them uses the following equation [11] ... [Pg.83]

Scanning electron microscopy (SEM) data for carbon-black compounds and conductive polymer blends [72c], supported by recent transmission electron microscopy (TEM) evaluations [79,80] (shown in Figure 11.39) were made, they also contradict the assumption of a statistical distribution. We find complete dispersion below the critical volume concentration (I) and a sudden stiucture formation ( branched flocculate chains ) at the critical volume concentration. This structural feature remains at higher concentrations. [Pg.550]

Polystyrene is the name of a homopolymer made from the single monomer styrene. When the name of a monomer comprises two or more words, the name should be enclosed in parentheses, as in polyfmethyl methacrylate) or poly(4-bromostyrene) to identify the monomer more clearly. This method can result in several names for a given polymer thus, polyfethylene glycol) , poly(ethylene oxide) , and poly(oxirane) describe the same polymer. Sometimes, the name of a hypothetical monomer is used, as in polyfvinyl alcohol) . Even though a name like polyethylene covers a multitude of materials, the system does provide understandable names when a single monomer is involved in the synthesis of a single polymer. When one monomer can yield more than one polymer, e.g. 1,3-butadiene or acrolein, some sort of stiuctural notation must be used to identify the product, and one is not far from a formal structure-based name. [Pg.2181]

Cameron, N. R and Sherrington, D. C. High Internal Phase Emulsions (HlPEs)-Stiucture, Properties and Use in Polymer Preparation. Vol. 126, pp. 163-214. [Pg.210]

I. Labaume, J. Huitric, P. Mederic, T. Aubry, Stiuctural and rheological propaties of different polyamide/polyethylene blends filled with clay nanoparticles a comparative study. Polymer 54, 3671-3679 (2013)... [Pg.152]

He, C. and Ma, B. (2010) The spinning, stiucture, and properties of cellulose/ chitin blend filaments through HWM method. Polymers For Advanced Technologies, 21(7), 496-505. [Pg.80]

Glass fibre and other polymer filters have a uniform felt type of internal stiucture. Modem PTFE filters also resemble a felt, with tihin filaments stretching between modes of PTFE, see Figure 6.18,... [Pg.209]

Lakshmi, M.S., Narmadha, B., Reddy, B.S.R. Enhanced thermal stability and stiuctural characteristics of different MMT-Clay/epoxy-nanocomposite materials. Polym. Degrad. Stab. 93, 20125 5213 (2008)... [Pg.11]

From Coordination Polymers to Hierarchical Self-Assembled Stiuctures a 0 = Nd +, La = 5... [Pg.97]

Wu T-M, Wu C-Y (2006) Biodegradable poly(lactic acid)/chitosan-modified montmorillonite nanocomposites preparation and characterization. Polym Degrad Stab 91(9) 2198-2204 Xi Y, Ding Z, He H, Frost RL (2004) Stiucture of oiganoclays—an X-ray diffraction and thermogravimetric analysis study. J Colloid Inhxface Sci 277 116-120 Xi Y, Frost RL, He H (2007) Modification of the surfaces of Wyoming montmorillonite by the cationic surfactants alkyl trimethyl, dialkyl dimethyl, and trialkyl methyl ammonium bromides. J Colloid Interface Sci 305(1) 150-158... [Pg.136]

Goring DAI (1971) Polymer properties of lignin tmd lignin derivatives. In Sarkanen KV, Ludwig CH (eds) Lignins, occurrence, formation, stiucture and reactions.Wiley, NY, pp 695-865... [Pg.55]

As described above, semicrystalline polymers are more complex, including the two-phase stiucture, with the crystalline phase having various degrees of crystallinity and... [Pg.340]

Fig. 7 Various carbonyl stiuctures appeared during weathering treatment of polymers... Fig. 7 Various carbonyl stiuctures appeared during weathering treatment of polymers...
Costa, P., Ribeiro, S., Botelho, G., Machado, A.V., Mendes, S.L. Effect of butadiene/styrene ratio, block stiucture and caibon nanotube content on the mechanical and electrical properties of thermoplastic elastomers after UV ageing. Polym. Test. 42, 225-233 (2015)... [Pg.226]

Tang C, Long G, Hu X, K-w Wong, W-m Lau, Fan M, Mei J, Xu T, Wang B, Hui D (2014) Conductive polymer nanocomposites with hitftarchical multi-scale stiuctures via self-assembly of carbon-nanotubes on graphene on polymer-microspheres. Nanoscale 6 7877... [Pg.40]

Long YY-Z, Chen Z, Duvail JL et al (2005) Micro- and nano-stiuctured conducting polymeric materials. Prog Polym Sci 35 1673... [Pg.75]

Dudowicz J, Eieed KF (1991) Effect of monomer stiucture and compressibility on the properties of multicomponent polymer blends and solutions. 2. Application to binary blends. Macromolecules 24 5096-5111... [Pg.144]

Liquid crystalline polymers are best thought of as being a separate and unique class of plastics. The molecules are stiff, rod-like stiuctures that are organized in large parallel arrays or domains in both the melt and the solid... [Pg.246]

Tomaszewska (1996) studied the effect of the salt LiCl added to the casting polymer solution on the stiuctural properties and permeability of PVDF flat-sheet membranes prepared for MD. [Pg.311]

Shuai X, He Y, Asakawa N, Inoue YJ (2001) MiscibiUty and phase stiucture of binary blends of poly(L-lactide) and poly(vinyl alcohol). J Appl Polym Sci 81(3) 762-772... [Pg.199]

Arias A, Corcoran N, Banach M, Friend R, MacKenzie J, Huck W (2002) Vtatieally segregated polymer-blend photovoltaie thin-film stiuctures through surfaee-mediated solution processing. Appl Phys Lett 80(10) 1695-1697... [Pg.303]

See other pages where Polymer Stiucture is mentioned: [Pg.102]    [Pg.102]    [Pg.38]    [Pg.382]    [Pg.290]    [Pg.198]    [Pg.503]    [Pg.387]    [Pg.369]    [Pg.579]    [Pg.199]    [Pg.223]    [Pg.48]    [Pg.165]    [Pg.324]    [Pg.473]    [Pg.578]    [Pg.380]    [Pg.562]    [Pg.36]    [Pg.121]    [Pg.154]    [Pg.387]    [Pg.160]    [Pg.243]    [Pg.417]   


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