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Interpenetrating polymer networks of poly(N-vinylacetamide) and stimuli responsive polymers applied to novel amphiphilic gel.

Abstract

The swelling behaviors of IPN with poly(N-vinylacetamide) (PNVA), which possibly converts from nonionic gel to cationic gel, and the stimuli responsive polymers, such as poly(acrylic acid) (PAAc) and poly(N-isopropylacrylamide) (PNIPAm) were investigated in order to prepare the stimuli responsive amphiphilic gel. When the monomer concentrations were uniformed at the IPN preparation, the obtained PNVA/PAAc IPN showed the pH responsivity with around 100 of swelling ratio at pH 4 to around 1 of swelling ratio at pH 2, although it lost the amphiphilicity due to the lack of swelling in ethanol. On the other hand, the gelation of N-vinylacetamide at 2 M in PNIPAM gel resulted in thermosensitive and amphiphilic hydrogel, that the swelling ratio in EtOH/water (3/7, v/v) also decreased, compared to the value in water at 25 degrees C.

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  • Authors+Show Affiliations

    ,

    The Center for Advanced Medical Engineering and Informatics, Osaka University, 2-2, Yamada-oka, Suita, Osaka 565-0871, Japan.

    ,

    Source

    MeSH

    Acetamides
    Gels
    Hydrogen-Ion Concentration
    Polymers
    Polyvinyls

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    22103121

    Citation

    TY - JOUR T1 - Interpenetrating polymer networks of poly(N-vinylacetamide) and stimuli responsive polymers applied to novel amphiphilic gel. AU - Ajiro,Hiroharu, AU - Takemoto,Yukie, AU - Akashi,Mitsuru, PY - 2011/11/23/entrez PY - 2011/11/23/pubmed PY - 2011/12/20/medline SP - 7047 EP - 9 JF - Journal of nanoscience and nanotechnology JO - J Nanosci Nanotechnol VL - 11 IS - 8 N2 - The swelling behaviors of IPN with poly(N-vinylacetamide) (PNVA), which possibly converts from nonionic gel to cationic gel, and the stimuli responsive polymers, such as poly(acrylic acid) (PAAc) and poly(N-isopropylacrylamide) (PNIPAm) were investigated in order to prepare the stimuli responsive amphiphilic gel. When the monomer concentrations were uniformed at the IPN preparation, the obtained PNVA/PAAc IPN showed the pH responsivity with around 100 of swelling ratio at pH 4 to around 1 of swelling ratio at pH 2, although it lost the amphiphilicity due to the lack of swelling in ethanol. On the other hand, the gelation of N-vinylacetamide at 2 M in PNIPAM gel resulted in thermosensitive and amphiphilic hydrogel, that the swelling ratio in EtOH/water (3/7, v/v) also decreased, compared to the value in water at 25 degrees C. SN - 1533-4880 UR - https://www.unboundmedicine.com/medline/citation/22103121/Interpenetrating_polymer_networks_of_poly_N_vinylacetamide__and_stimuli_responsive_polymers_applied_to_novel_amphiphilic_gel_ L2 - http://openurl.ingenta.com/content/nlm?genre=article&issn=1533-4880&volume=11&issue=8&spage=7047&aulast=Ajiro ER -