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  • 1
    Electronic Resource
    Electronic Resource
    Recent Work on Molecular Weight of Cellulose (1953)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 45 (1953), S. 2483-2490 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50527a036
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  • 2
    Electronic Resource
    Electronic Resource
    Charge-transfer complexes between molecular oxygen and polystyrenes (1986)
    s.l. : American Chemical Society
    Macromolecules 19 (1986), S. 1674-1679 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00160a033
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  • 3
    Electronic Resource
    Electronic Resource
    Photodegradation and photo-oxidation of synthetic polymers
    Amsterdam : Elsevier
    Journal of Analytical and Applied Pyrolysis 15 (1989), S. 237-247 
    Details
    ISSN: 0165-2370
    Keywords: Electron structure ; chemical bonds ; photo-oxidation ; photodegradation ; polymers, synthetic ; pyrolysis ; reaction mechanism ; singlet oxygen.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-2370(89)85037-5
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  • 4
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1979)
    Springer
    Naturwissenschaften 66 (1979), S. 62-64 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00369372
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  • 5
    Electronic Resource
    Electronic Resource
    Über den Feinbau der Zellulose (1950)
    Springer
    Cellular and molecular life sciences 6 (1950), S. 12-14 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The frequency curves of many cellulose samples contain common maxima for DP-values of 70–100 and 200. After a strong degradation most of the cellulose accumulates at a DP of about 100. This tendency is shown to be caused by the crystallinity of the cellulose walls. The crystalline areas, the micelles, have been isolated as an aqueous colloidal solution, and in the electron microscope they are found to be rod-like particles with a length of 500–600 Å and a width of 50–100 Å. These results are in agreement with earlier X-ray investigations. Electron and X-ray diffraction studies have proved that the crystalline structure and the lattice dimensions of the isolated micelles are exactly the same as those of the fibre cellulose. After treatment with ultrasonic waves, an electron microscope investigation has demonstrated that the whole cellulose fibre is built up of elementary fibrils (micellar strings) of the same thickness as the micelles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02154044
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  • 6
    Electronic Resource
    Electronic Resource
    Zur elektronenmikroskopischen Präparation von Kolloiden (1950)
    Springer
    Cellular and molecular life sciences 6 (1950), S. 27-28 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Object membranes of nitrocellulose and cellulose triacetate have a negative electrical charge, causing an aggregation of negative colloid particles in the preparation. The membranes are made positive by a thin layer—a few Å—of a light metal (beryllium or aluminium), that is oxidized by air. On such membranes, negative particles as cellulose sols are individually adsorbed without aggregation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02154055
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  • 7
    Electronic Resource
    Electronic Resource
    Stabilizing effect of 4-(1-imidazolyl)-phenol against the oxidation of polybutadiene by molecular and singlet oxygen (1979)
    Springer
    Polymer bulletin 1 (1979), S. 563-568 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00254485
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  • 8
    Electronic Resource
    Electronic Resource
    Surface modification of polymers. V. Biomaterial applications (1990)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 28 (1990), S. 173-183 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polyethylene films were surface grafted with glycidyl methacrylate (GMA) by UV irradiating the film for 5 min together with benzophenone. Poly(ethylene glycol) (PEG) was attached to the grafted surface through reaction with the epoxy groups. This yielded a surface which consisted of 95% PEG as measured with ESCA. The adsorption of human transferrin onto this film was significantly reduced as compared with a pure polyethylene film. Heparin was also reacted with a GMA grafted PE surface. ESCA showed that heparin was grafted to the surface, and in vitro blood clotting tests on the heparinized PE surface showed a reduced thrombus formation. GMA grafted polystyrene wells were reacted with carbohydrazide, to the formed carbohydrazide surface a rabbit antibody raised against mouse urinary protein (RaMUP) was covalently coupled. The RaMUP coupled surfaces was used in the detection of mouse urinary protein (MUP) at low concentrations (ca. 1 ng/mL) with an ELISA technique.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1990.080280112
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  • 9
    Electronic Resource
    Electronic Resource
    Surface modification of polymers. III. Grafting of stabilizers onto polymer films (1989)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 3405-3417 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polypropylene, polystyrene, and polyethylene have been grafted with glycidyl acrylate and glycidyl methacrylate. After 5 min of grafting with UV irradiation, polystyrene was extensively grafted to 91% coverage of glycidyl acrylate according to ESCA, while polypropylene was grafted to only 50% coverage. With glycidyl acrylate the grafting depth is estimated to be 0.1 μm for PP and 0.23 μm for PS. Glycidyl methacrylate is grafted in a thinner layer than glycidyl acrylate. The stabilizers 2,4-dihydroxybenzophenone, phenyl 4-aminosalicylate, and 4-amino-2,2,6,6-tetramethylpiperidine were attached to LDPE surfaces containing grafted glycidyl acrylate by opening of the epoxide bond. The reaction between epoxide and stabilizer is diffusion controlled at high concentrations of stabilizer. UV spectroscopy on an LDPE film grafted and reacted with 2,4-dihydroxybenzophenone showed that 227 nmol stabilizer/cm2 was bound to the surface.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1989.080271019
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  • 10
    Electronic Resource
    Electronic Resource
    Surface modification of polymers. II. Grafting with glycidyl acrylates and the reactions of the grafted surfaces with amines (1989)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 1641-1652 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The surface of low density polyethylene has been grafted with glycidyl acrylate and glycidyl methacrylate by photoinitiation. ESCA measurements on the grafted surface showed a 72% coverage for glycidyl acrylate and 52% for glycidyl methacrylate after 10 min of grafting with UV irradiation. ATR-IR showed a 10 times more extensive grafting for glycidyl acrylate than for glycidyl methacrylate after 10 min of grafting, indicating reaction to deeper layers. Acetone and ethanol were used as solvents: acetone yielded slightly more grafting at the surface. The grafted surfaces were reacted with 2M solutions of aniline and propylamine in ethanol. After 4 h reaction at 60°C, with aniline 52% of the epoxy groups while for propylamine 96% of the groups were consumed, as measured with ATR-IR.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1989.080270516
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