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  • poly(p-oxybenzoate)  (1)
  • poly-4-oxybenzoate  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Morphology, crystal structure, and orientation of poly-p-oxybenzoate on mica (1997)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 35 (1997), S. 1807-1820 
    Details
    ISSN: 0887-6266
    Keywords: poly(p-oxybenzoate) ; confined thin film melt polymerization ; epitaxy ; mica substrate ; morphology ; crystal structure ; Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Polymerization of p-acetoxybenzoic acid between mica sheets, from both the melt and dilute solution, in a wide range of polymerization temperatures (180-400°C) yields an epitaxial-like overgrowth of PpOBA on the mica cleavage surface. The PpOBA overgrowth forms long rows by lateral aggregation of ribbon crystals situated in three substrate directions rotated by 60°. The c-axes of the PpOBA phase I and II lattices are parallel to the 001 plane of the mica, coinciding with the a-axes of the mica hexagonal structure. The aI- and bII-axes lie predominantly on the mica surface. The surface-orienting effect is tentatively attributed to surface steps and or/polar effects; lattice matching does not occur. The recrystallization of bulk polymer samples previously prepared also leads to ordering between mica like that in melt or solution polymerization. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 1807-1820, 1997
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Crystallization of poly-p-oxybenzoate on mica (1996)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 34 (1996), S. 1935-1940 
    Details
    ISSN: 0887-6266
    Keywords: poly-4-oxybenzoate ; confined thin film polymerization/crystallization ; epitaxial crystallization on mica ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Thin film polymerization/crystallization of poly-4-oxybenzoate (P-4-OB) from melt or dilute solutions yields on mica cleavage surface an epitaxial overgrowth with crystal blocks oriented in 1 to 3 substrate directions rotated by 60°. The b and c crystal axes of P-4-OB lie in the mica cleavage plane, with the a axis being perpendicular to it. At higher polymerization temperatures a different type of P-4-OB orientation on mica was also observed: two P-4-temperatures a different type of P-4-OB orientation on mica was also observed: two P-4-OB phase I crystals, again with b- and c-axes lying parallel to mica cleavage plane, were oriented perpendicular to each other. There is a pronounced tendency of the relatively thick P-4-OB overgrowth to form complex crystal structures involving both phase I and II with different types of orientation on mica substrate. © 1996 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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