Thesis (Ph.D.), - University of Manchester, Department of Chemistry.
|Contributions||University of Manchester. Department of Chemistry.|
|The Physical Object|
|Number of Pages||238|
Uniform “Patchy” Platelets by Seeded Heteroepitaxial Growth of Crystallizable Polymer Blends in Two Dimensions. Journal of the American Chemical Society , (12), DOI: /jacs.6bCited by: Uniform triblock oligomers with a central methylene block and outer oxyethylene blocks terminated by methoxy groups, CH3(OCH2CH2)mO(CH2)n(OCH2CH2)mOCH3 (EmCnEm), were . An estimate of crystallinity The crystallinity can be estimated by comparing the areas of the peaks due to the amorphous polymer with those of the crystalline phase: %C=A cr / (A cr + A am) cr cr am K.A. Moly et al. / European Polymer Journal 41 () –;File Size: 1MB. Crystallinity in Polymers. Polymers are widely used materials. Their versatility makes them suitable for a whole range of applications, and comes from the capability of manufacturers to tailor microstructures and therefore properties through control of the processing conditions. An understanding of polymer crystallinity is important because the.
Indicates high toxicity in the given toxicological category. Indicates no available weight-of-the-evidence summary assessment. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page.: 1. Cleavage Gas Chromatography. Several mixed anhydrides of carboxylic and sulfonic acids, as proposed by Karger and Mazur , act as reagents for the cleavage of ether linkages, particularly that of acetic anhydride toluene- p-sulfonic acids, which is not only a powerful reagent for the cleavage of ether linkages but is also an active acetylating agent. Materials , 6 encapsulated nanosilica particles was investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM), which confirmed the uniform distribution of the. Crystallinity makes a polymers strong, but also lowers their impact resistance. As an example, samples of polyethylene prepared under high pressure ( atm) have high crystallinities (95 – 99%) but are extremely brittle. Small molecules and ions form a three-dimensional lattice with an extended regular structure that makes large crystals.
Thermogelling Properties of Triblock Copolymers in the Presence of Hydrophilic Fe3O4 Nanoparticles and Surfactants. Langmuir , 28 (33), DOI: /lay. Swati Mishra, Lavanya Y. Peddada, David I. Devore, and Charles M. Roth. Poly(alkylene oxide) Copolymers for Nucleic Acid Delivery. The tacticity of the polymer is also important factor affecting the crystallinity. If the components are reacting in an ordered way, like syndiotactic PET, the material will be highly crystalline. Low-frequency Raman spectra were recorded for n-alcohols,α-methyl,ω-methoxy-oligo (oxyethylene)s and α-hydro, ω-hydroxy-oligo(oxyethylene)s. On the basis of linear crystal models, non-linear. The changeover from crystallinity involving an entirely helical configuration, as in the series polybutene‐1 to polyhexene‐1, to the I/II type of crystallinity is reflected by a minimum in the curve of melting point vs. side‐chain length. The increasing melting points from polynonene‐1 to polyoctadecene‐1 lie close to those of.