New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics

Shawn H. Phillips, Rusty L. Blanski, Steven A. Svejda, Timothy S. Haddad, Andre Lee, Joseph D. Lichtenhan, Frank J. Feher, Patrick T. Mather, Benjamin S. Hsiao

    Research output: Contribution to journalArticle

    • 1 Citations

    Abstract

    The demand for multi-purpose, high-performance polymer systems has resulted in a need for advancing polymer properties beyond what traditional systems can offer. Only through control/alteration at the molecular level can one maximize property enhancements to meet current military and commercial needs. Over the last seven years the Air Force Research Laboratory has developed and incorporated discrete Si-O frameworks (POSS = Polyhedral Oligomeric Silsesquioxanes) into traditional organic polymer systems. This research has resulted in new hybrid inorganic-organic polymer systems with remarkable enhancements in mechanical and physical properties including dramatic increases in both glass transition and decomposition temperatures, reduced flammability, increased moduli and oxidation resistance. We have shown that these enhancements result from the chemical composition (Si-O core) and size (∼15 A in diameter) of the POSS frameworks, and can be copolymerized, grafted, or even blended using traditional processing methods. Recently, we have focused our efforts on understanding and controlling the molecular level interactions between POSS frameworks and the polymer matrix. The development of new POSS monomers has allowed us to study how functionality, size, and geometry enhances the bulk properties of these hybrid materials. For example, increasing the solubility of side groups on the POSS framework results in greater POSS-polymer matrix interactions and increased Tg and storage moduli. Recent studies with POSS blends have resulted in increases in hardness, and reductions in dielectric constants and coefficients of thermal expansion. New results in polymer synthesis, characterization, and applications will be discussed with a strong emphasis on the versatility of this new nanotechnology to many polymer systems.

    Original languageEnglish (US)
    Pages (from-to)CC4.6.1-CC4.6.10
    JournalMaterials Research Society Symposium - Proceedings
    Volume628
    StatePublished - 2000

    Profile

    Polymers
    polymers
    Behavioral Symptoms
    Polymer matrix
    Organic polymers
    augmentation
    Accounts Payable and Receivable
    Dietary Services
    Acetanilides
    African horse sickness virus
    Alcuronium
    Eye Hemorrhage
    Coccidiostats
    Amoxapine
    Caprylates
    Dextrocardia
    Abducens Nerve
    Accessory Nerve
    Aerospace Medicine
    Erythema Multiforme

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

    Cite this

    Phillips, S. H., Blanski, R. L., Svejda, S. A., Haddad, T. S., Lee, A., Lichtenhan, J. D., ... Hsiao, B. S. (2000). New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics. Materials Research Society Symposium - Proceedings, 628, CC4.6.1-CC4.6.10.

    New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics. / Phillips, Shawn H.; Blanski, Rusty L.; Svejda, Steven A.; Haddad, Timothy S.; Lee, Andre; Lichtenhan, Joseph D.; Feher, Frank J.; Mather, Patrick T.; Hsiao, Benjamin S.

    In: Materials Research Society Symposium - Proceedings, Vol. 628, 2000, p. CC4.6.1-CC4.6.10.

    Research output: Contribution to journalArticle

    Phillips, SH, Blanski, RL, Svejda, SA, Haddad, TS, Lee, A, Lichtenhan, JD, Feher, FJ, Mather, PT & Hsiao, BS 2000, 'New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics' Materials Research Society Symposium - Proceedings, vol 628, pp. CC4.6.1-CC4.6.10.

    Phillips, Shawn H.; Blanski, Rusty L.; Svejda, Steven A.; Haddad, Timothy S.; Lee, Andre; Lichtenhan, Joseph D.; Feher, Frank J.; Mather, Patrick T.; Hsiao, Benjamin S. / New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics.

    In: Materials Research Society Symposium - Proceedings, Vol. 628, 2000, p. CC4.6.1-CC4.6.10.

    Research output: Contribution to journalArticle

    @article{2874d5d2339c443bac1c2f637b3b746a,
    title = "New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics",
    abstract = "The demand for multi-purpose, high-performance polymer systems has resulted in a need for advancing polymer properties beyond what traditional systems can offer. Only through control/alteration at the molecular level can one maximize property enhancements to meet current military and commercial needs. Over the last seven years the Air Force Research Laboratory has developed and incorporated discrete Si-O frameworks (POSS = Polyhedral Oligomeric Silsesquioxanes) into traditional organic polymer systems. This research has resulted in new hybrid inorganic-organic polymer systems with remarkable enhancements in mechanical and physical properties including dramatic increases in both glass transition and decomposition temperatures, reduced flammability, increased moduli and oxidation resistance. We have shown that these enhancements result from the chemical composition (Si-O core) and size (∼15 A in diameter) of the POSS frameworks, and can be copolymerized, grafted, or even blended using traditional processing methods. Recently, we have focused our efforts on understanding and controlling the molecular level interactions between POSS frameworks and the polymer matrix. The development of new POSS monomers has allowed us to study how functionality, size, and geometry enhances the bulk properties of these hybrid materials. For example, increasing the solubility of side groups on the POSS framework results in greater POSS-polymer matrix interactions and increased Tg and storage moduli. Recent studies with POSS blends have resulted in increases in hardness, and reductions in dielectric constants and coefficients of thermal expansion. New results in polymer synthesis, characterization, and applications will be discussed with a strong emphasis on the versatility of this new nanotechnology to many polymer systems.",
    author = "Phillips, {Shawn H.} and Blanski, {Rusty L.} and Svejda, {Steven A.} and Haddad, {Timothy S.} and Andre Lee and Lichtenhan, {Joseph D.} and Feher, {Frank J.} and Mather, {Patrick T.} and Hsiao, {Benjamin S.}",
    year = "2000",
    volume = "628",
    pages = "CC4.6.1--CC4.6.10",
    journal = "Materials Research Society Symposium - Proceedings",
    issn = "0272-9172",
    publisher = "Materials Research Society",

    }

    TY - JOUR

    T1 - New insight into the structure-property relationships of hybrid (inorganic/organic) POSS™ thermoplastics

    AU - Phillips,Shawn H.

    AU - Blanski,Rusty L.

    AU - Svejda,Steven A.

    AU - Haddad,Timothy S.

    AU - Lee,Andre

    AU - Lichtenhan,Joseph D.

    AU - Feher,Frank J.

    AU - Mather,Patrick T.

    AU - Hsiao,Benjamin S.

    PY - 2000

    Y1 - 2000

    N2 - The demand for multi-purpose, high-performance polymer systems has resulted in a need for advancing polymer properties beyond what traditional systems can offer. Only through control/alteration at the molecular level can one maximize property enhancements to meet current military and commercial needs. Over the last seven years the Air Force Research Laboratory has developed and incorporated discrete Si-O frameworks (POSS = Polyhedral Oligomeric Silsesquioxanes) into traditional organic polymer systems. This research has resulted in new hybrid inorganic-organic polymer systems with remarkable enhancements in mechanical and physical properties including dramatic increases in both glass transition and decomposition temperatures, reduced flammability, increased moduli and oxidation resistance. We have shown that these enhancements result from the chemical composition (Si-O core) and size (∼15 A in diameter) of the POSS frameworks, and can be copolymerized, grafted, or even blended using traditional processing methods. Recently, we have focused our efforts on understanding and controlling the molecular level interactions between POSS frameworks and the polymer matrix. The development of new POSS monomers has allowed us to study how functionality, size, and geometry enhances the bulk properties of these hybrid materials. For example, increasing the solubility of side groups on the POSS framework results in greater POSS-polymer matrix interactions and increased Tg and storage moduli. Recent studies with POSS blends have resulted in increases in hardness, and reductions in dielectric constants and coefficients of thermal expansion. New results in polymer synthesis, characterization, and applications will be discussed with a strong emphasis on the versatility of this new nanotechnology to many polymer systems.

    AB - The demand for multi-purpose, high-performance polymer systems has resulted in a need for advancing polymer properties beyond what traditional systems can offer. Only through control/alteration at the molecular level can one maximize property enhancements to meet current military and commercial needs. Over the last seven years the Air Force Research Laboratory has developed and incorporated discrete Si-O frameworks (POSS = Polyhedral Oligomeric Silsesquioxanes) into traditional organic polymer systems. This research has resulted in new hybrid inorganic-organic polymer systems with remarkable enhancements in mechanical and physical properties including dramatic increases in both glass transition and decomposition temperatures, reduced flammability, increased moduli and oxidation resistance. We have shown that these enhancements result from the chemical composition (Si-O core) and size (∼15 A in diameter) of the POSS frameworks, and can be copolymerized, grafted, or even blended using traditional processing methods. Recently, we have focused our efforts on understanding and controlling the molecular level interactions between POSS frameworks and the polymer matrix. The development of new POSS monomers has allowed us to study how functionality, size, and geometry enhances the bulk properties of these hybrid materials. For example, increasing the solubility of side groups on the POSS framework results in greater POSS-polymer matrix interactions and increased Tg and storage moduli. Recent studies with POSS blends have resulted in increases in hardness, and reductions in dielectric constants and coefficients of thermal expansion. New results in polymer synthesis, characterization, and applications will be discussed with a strong emphasis on the versatility of this new nanotechnology to many polymer systems.

    UR - http://www.scopus.com/inward/record.url?scp=85009843874&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85009843874&partnerID=8YFLogxK

    M3 - Article

    VL - 628

    SP - CC4.6.1-CC4.6.10

    JO - Materials Research Society Symposium - Proceedings

    T2 - Materials Research Society Symposium - Proceedings

    JF - Materials Research Society Symposium - Proceedings

    SN - 0272-9172

    ER -