View Vol. 3 , Iss. 2 (December 2021)

Organic Polymer Material Research

ISSN: 2661-3875 (Online)

Vol. 3 , Iss. 2 (December 2021)

Full Issue

  • Article

    Extraction of Dyes from Sunflower Petal and Their Fourier Transform Infrared Characterization

    Gboyega Oluwaseun Oyeleke, Ibraheem Abimbade Abdulazeez, Ajisola Agnes Adebisi, Kehinde Nasiru Oyekanmi, Segun Olaitan Akinbode
    1-6

    Article ID: 2586    DOI：https://doi.org/10.30564/opmr.v3i1.2586
    412  (Abstract) 280  (Download)

    Abstract:

    Three solvents of different polarities (water, methanol and 1% NaOH
    solution) were used to extract dyes that produced different shades from
    dried sunflower (Helianthus annuus) petal. The extraction procedures
    using different solvent types were carried out separately. The dye extracts
    were thereafter subjected to Fourier Transform Infrared Spectrometry
    (FT-IR) analysis for characterization in terms of functional groups. The
    intensities of the... More

  • Review

    Research on Relationships between the Pigment of Dunhuang Mogao Grottoes Frescoes and Ecological Microorganism

    Yiran Zhao, Yu Guo
    7-11

    Article ID: 4158    DOI：https://doi.org/10.30564/opmr.v3i2.4158
    287  (Abstract) 158  (Download)

    Abstract:

    Dunhuang Mogao Grottoes is one of the largest art treasures in the world. She has a large number of murals, sculptures, beautiful and vivid; There are precious Buddhist scriptures, documents, noble and elegant. Spanning more than 1,600 years, the Mogao Grottoes show the world the extensive and profound Chinese culture with a long... More

  • Article

    Study of Hydrophilic Properties of Polysaccharides

    Michael Ioelovich
    12-23

    Article ID: 4181    DOI：https://doi.org/10.30564/opmr.v3i2.4181
    402  (Abstract) 242  (Download)

    Abstract:

    In this research, the structural characteristics, specific surface area, sorption of water vapor, and wetting enthalpy of various polysaccharides (cellulose, hemicelluloses, starch, pectin, chitin, and chitosan) have been studied. It was confirmed that crystallites are inaccessible for water, and therefore water molecules can interact only with polar groups in noncrystalline (amorphous) domains of biopolymers. The... More

  • Editorial

    Organic Polymer Materials for Light Emitting Diode Applications

    Fayroz Arif Sabah
    24-25

    Article ID: 4348    DOI：https://doi.org/10.30564/opmr.v3i2.4348
    293  (Abstract) 156  (Download)

    Abstract:

    There are two common types of polymers (thermoplastics and thermosets), which have been classified by various methods depending on their molecular structures. The bonding of molecular chains is the fundamental physical difference between these two polymer types. The polymer types are named based on their general thermal and processing characteristics, and chemical structure,... More