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Single polymers

Figure 4.11 Electron micrographs of polyethylene crystals, (a) Dark-field illumination shows crystals to have a hollow pyramid structure. (Reprinted with permission from P. H. Geil, Polymer Single Crystals, Interscience, New York, 1963.) (b) Transmission micrograph in which contrast is enhanced by shadow casting [Reprinted with permission from D. H. Reneker and P. H. Geil, /. Appl. Phys. 31 1916 (I960).]... Figure 4.11 Electron micrographs of polyethylene crystals, (a) Dark-field illumination shows crystals to have a hollow pyramid structure. (Reprinted with permission from P. H. Geil, Polymer Single Crystals, Interscience, New York, 1963.) (b) Transmission micrograph in which contrast is enhanced by shadow casting [Reprinted with permission from D. H. Reneker and P. H. Geil, /. Appl. Phys. 31 1916 (I960).]...
Geil, P. H., Polymer Single Crystals, Interscience, New York, 1963. [Pg.270]

Fig. 3. Polymer single crystals (a) flat lamellae and (b) pyramidal lamellae. Two concepts of chain re-entry are illustrated (6). Fig. 3. Polymer single crystals (a) flat lamellae and (b) pyramidal lamellae. Two concepts of chain re-entry are illustrated (6).
Lotz, B. and Wittmann, J.-C. (1993) Structure of Polymer Single Crystals, in Structure and Properties of Polymers, ed. Thomas, E.L. Materials Science and Technology, A Comprehensive Treatment, eds. Cahn, R.W., Haasen, P. and Kramer, E.J. (VCH, Weinheim) p. 79. [Pg.338]

With the first successful growth of a polymer single crystal in the 1950s it was found that the polymer chains are folded back and forth many times inside the crystal [161]. [Pg.905]

The fringed micelle theory has been less favoured recently following research on the subject of polymer single crystals. This work has led to the suggestion that polymer crystallisation takes place by single molecules folding themselves at intervals of about 10 nm to form lamellae as shown in Figure 3.3b. These lamellae appear to be the fundamental structures of crystalline polymers. [Pg.43]

Geil PH (1963) Polymer single crystals. Wiley-Interscience, New York... [Pg.34]

Trubetskoy, V.S., Narula, J., Khaw, B.A., and Torchilin, V.P. (1993) Chemically optimized antimyosin Fab conjugates with chelating polymers Importance of the nature of the protein-polymer single site covalent bond for biodistribution and infarction localization. Bioconjugate Chem. 4, 251-255. [Pg.1123]

J.H. Rouse and P.T. Lillehei, Electrostatic assembly of polymer/single walled carbon nanotube multilayer films. Nano Lett. 3, 59-62 (2003). [Pg.519]

An alternative structure has been proposed in which the core of the molecule consists of a phosphoric anhydride polymer, singly esterified with... [Pg.317]

Gu, F. Zhang, F. Yin, X. Tong, F., Polymer single nanowire optical sensors, Nano Lett. [Pg.373]

Since polymer single crystals prepared these days are too small for x-ray diffraction experiments, the Crystal Structure of a polymer is generally determined from x-ray patterns of a fibre drawn from the polymer. Due to the alignment of the crystalline regions with the long axes of the molecules parallel to the fibre axis, the pattern is essentially identical to a rotation pattern from... [Pg.74]

Electron Microscopy can be used for resolution of smaller objects the practical limit of resolution being a few angstrom units. Electron Microscopy has been used in the study of the morphology of crystalline polymers. The usual techniques of replication, heavy-metal shadowing, and solvent etching are widely used. The direct observation of thin specimens, like polymer single crystals, is also possible and permits the observation of the electron-diffraction pattern of some specimen area, which is invaluable for... [Pg.75]

Rege K, Raravikar NR, Kim D-Y, Schadler LS, Ajayan PM, Dordick JS (2004). Enzyme-polymer-single walled carbon nanotube composites as biocatalystic films. Nano Lett. 3 829-832. [Pg.219]

Rouse JH, Lillehei PT, Sanderson J, Siochi EJ (2004). Polymer/Single-walled carbon nanotube films assembled via donor-acceptor interactions and their use as scaffolds for silica deposition. Chem. Mat. 16 3904-3910. [Pg.219]

Stranks, S. D. Weisspfennig, C. Parkinson, P. Johnston, M. B. Herz, L. M. Nicholas, R. J., Ultrafast charge separation at a polymer-single-walled carbon nanotube molecular junction. Nano Lett. 2011,11, 66. [Pg.474]

Crystalline clumps in suspension are ultra-sonicated into thin plates/fragments suitable for TEM investigation [10], but such ultra-sonication may damage the polymer single crystals. [Pg.459]

P.H. Geil, Polymer Single Crystals, John Wiley and Sons (1963)/ (reprint), R.E. Krieger Pub. (1973). [Pg.471]

Note 3 Polymer crystals that can be manipulated individually are often called (polymer) single crystals. A single crystal may contain different fold domains. [Pg.82]

While the lamellar structures present in spherulites are similar to those present in polymer single crystals, the folding of chains in spherulites is less organized. Further, the structures that exist between these lamellar structures are generally occupied by amorphous structures including atactic chain segments, low molecular weight chains, and impurities. [Pg.36]

The. folded-chain lamella theory arose in the last 1950s when polymer single crystals in the form of thin platelets termed lamella, measuring about 10,000 A x 100 A, were grown from polymer solutions. Contrary to previous expectations, X-ray diffraction patterns showed the polymer chain axes to be parallel to the smaller dimension of the platelet. Since polymer molecules are much longer than 100 A, the polymer molecules are presumed to fold back and forth on themselves in an accordionlike manner in the process of crystallization. Chain... [Pg.24]

GeU PH (1963) Polymer single crystals. John Wiley Interscience, New York Mandelkern L (1989) Crystallization and melting of polymers In G Allen (ed) Comprehensive polymer science, vol 2. Pergamon Press, Oxford Avrami M (1939) J Chem Phys 7 1103 Avrami M (1940) J Chem Phys 8 812 Avrami M (1941) J Chem Phys 9 1977 Tohin MC (1974) J.Polym Sci Polym Phys 12,399 Tohin MC (1976) J Polym Sci Polym Phys 14 2253 Nakamura K, Katayama K,Amano T (1975) J Appl Polym Sci 17 1031 Ozawa T (1971) Polymer 12 150... [Pg.61]


See other pages where Single polymers is mentioned: [Pg.496]    [Pg.50]    [Pg.314]    [Pg.281]    [Pg.225]    [Pg.226]    [Pg.19]    [Pg.195]    [Pg.75]    [Pg.76]    [Pg.191]    [Pg.457]    [Pg.35]    [Pg.332]    [Pg.270]    [Pg.277]    [Pg.278]    [Pg.282]    [Pg.91]   
See also in sourсe #XX -- [ Pg.355 , Pg.643 , Pg.673 , Pg.720 ]




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A Polymer Chain Near the Single Obstacle

Applications of Single Conducting Polymer Nanowires (CPNWs)

Composites single polymer

Conformational Analysis of Single Polymer Chain

Coordination complexes singly-bridged polymers

Crystal, tensile properties polymer single

Diacetylene single crystal polymers

Diacetylene single crystal polymers disubstituted

Elastic deformation single-phase polymers

Evolution of Electronic Structure from Single Atom to Polymer Chain

FTIR single polymer fibers

Fiber composites single polymer

Irregular single-strand organic polymers, structure-based

Irregular single-strand organic polymers, structure-based nomenclature

Light single-layer polymer

Modelling polymers with a single-crystal texture

Molding processes single phase polymers

Morphology single polymer crystals

Nanofibrillar single polymer composites

Nanofibrillar single polymer composites (SPCs

Polydiacetylene single-crystal polymers

Polymer Blending Mechanisms in a Single Screw Extruder

Polymer Blending in Single Screw Extrusion Overall Mechanism

Polymer Single Crystals Diacetylenes

Polymer chain, single linear

Polymer chains, single

Polymer melts single chain structure factor

Polymer microcomposites, single

Polymer nanocomposites single wall carbon nanotube

Polymer polyelectrolyte single chains,

Polymer single crystal

Polymer single crystals chain folds

Polymer single crystals defects

Polymer single crystals dislocations

Polymer single-crystal specimens

Polymer white light-emitting devices with single emission layer

Polymer, stereoregular single-crystal

Polymers regular, single-strand, organic

Polymers single-cantilever clamps

Polymers single-chain mechanics

Polymers single-point incremental

Preparation of single polymer composites

Quasi-single-strand coordination polymer

Quasi-single-strand coordination polymer nomenclature

Regular single-strand organic polymers, nomenclature

Resins single phase polymer

Single chain models, polymer crystal nucleation

Single interface, polymers

Single ion polymer electrolytes

Single ionic polymer electrolyte

Single ionic polymer electrolyte preparation

Single phase polymers

Single polymer chains other helical polymers

Single polymer chains, intercalation

Single polymer coil

Single white-emitting polymers

Single-Layer LED Based on PPP-Type Polymers

Single-Layer Polymer Cells

Single-component polymers

Single-layer polymer device

Single-monomer method hyperbranched polymer

Single-particle eigensolutions of a periodic polymer chain

Single-phase polymer materials

Single-polymer approach

Single-polymer layer

Single-polymer nanocomposites

Single-strand organic polymer nomenclature

Single-strand polymer

Single-walled carbon nanotube , polymer

Single-walled carbon nanotubes conjugated polymers

Singly occupied molecular orbital polymers

Structure polymer single crystals

Synthesis and Single Molecule Nanomechanical Studies of Peptidomimetic 3-Sheet Modular Polymers

The Dimension of a Single Polymer Coil

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