Synthesis, characterization, and mechanical properties of PMMA/poly(aromatic/aliphatic siloxane) semi-interpenetrating polymer networks

Gilmer, T. Carter; Hall, Philip; Ehrenfeld, H.; Wilson, Kennard V.; Bivens, T.; Clay, D.B.; Endreszl, Charles

doi:10.1002/(sici)1099-0518(19960430)34:6<1025::aid-pola12>3.0.co;2-9

Cited by 28 publications

(15 citation statements)

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“…In a similar approach, Yu et al [23] demonstrated completely transparent composites of PMMA filled with polyvinyl butyral nanofibers with perfectly matched refractive indices of matrix and filler. Gilmer et al [24] studied the transparency of semi-interpenetrating polymer networks composed of PMMA and aromatic/aliphatic siloxane. They compared the transmittance of 1 mm thick films of various compositions and found that PMMA films had a transmittance of 92% when aromatic siloxane (polydiphenyl siloxane) was added.…”

Section: Refractive Index Matchingmentioning

confidence: 99%

Transparent polymer nanocomposites: An overview on their synthesis and advanced properties

Loste

Lopez‐Cuesta

Billon

et al. 2019

Progress in Polymer Science

236

147

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Since the last decade, there has been an increasing demand for the design of more advanced functional materials. The integration of inorganic nanoparticles to polymer matrices is a powerful tool to confer their fascinating and complementary properties to the polymer materials. Among the different polymer nanocomposites, transparent nanocomposites are of particular interest due to their significance in a wide range of applications. To achieve a high level of transparency in the nanocomposites, it is necessary to minimize the aggregation of the nanoparticles that induce significant light scattering and thus hamper the application for transparent materials. The basic concepts of light scattering, the refractive index modulation and the methods to characterize the transparency of nanocomposites are provided to introduce this review. The fabrication of the Abbreviations: Ag, silver; Al 2 O 3 , alumina; APTMS, (3-Aminopropyl)trimethoxysilane; ATO, antimony-doped tin oxide; Au, gold; CaCO 3 , calcium carbonate; CaF 2 , calcium fluoride; CdS

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Section: Refractive Index Matchingmentioning

confidence: 99%

Transparent polymer nanocomposites: An overview on their synthesis and advanced properties

Loste

Lopez‐Cuesta

Billon

et al. 2019

Progress in Polymer Science

236

147

View full text Add to dashboard Cite

show abstract

“…10,11 In some cases, these morphologies can indeed yield unique mechanical properties. Examples are IPNs of polymethacrylates with polyurethane [12][13][14][15][16] or siloxanes, 17 and poly(ethylene terephthalate) with castor oil, 18 which all can possess, for certain compositions, an extremely high strain at break. The fundamental explanation for these apparent improvements in mechanical properties is, however, still lacking and hardly any attention is paid to relation between the morphology and the mode of microscopic deformation.…”

Section: Introductionmentioning

confidence: 99%

Rubber-Modified Glassy Amorphous Polymers Prepared via Chemically Induced Phase Separation. 1. Morphology Development and Mechanical Properties

et al. 2001

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The introduction of rubbery particles can be applied to enhance shear yielding and, consequently, the toughness of brittle amorphous polymers. The critical transition in these polymers from crazing to shear yielding requires a submicrometer-or even nanometer-sized rubbery phase. These can be obtained via coalescence suppression in processes involving chemically induced phase separation but are also obtained in interpenetrating polymer networks (IPN) where cross-linking or gelation is responsible for the morphology control. In all cases, the formation of a nanometer-sized morphology is accompanied by an enhanced interphase mixing, i.e., incomplete demixing resulting in a broad interface in which the composition gradually changes from one phase to the other. In this study, the influence of interphase mixing on the mechanical properties has been investigated. Besides the standard semi-IPN system based on poly(methyl methacrylate) and aliphatic epoxy resins, two additional systems being composed of the same constituents but with an increased degree of interfacial mixing have been investigated: a full-IPN prepared by cross-linking the acrylate phase and a copolymer system in which the acrylate phase is chemically bonded to the epoxy phase. In situ small-angle X-ray scattering experiments during tensile deformation demonstrated that the microscopic deformation mechanism is clearly influenced by the degree of demixing. Despite this, the macroscopic toughness is found to be rather system independent since for all three systems, a comparable synergistic toughening effect is observed in both tensile and impact deformation.

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“…Cross-linked silicone polymers have many advantages, including flexibility, low surface tension, low dielectricity, ultraviolet resistance, non-flammability, as well as high thermal and chemical stability. Although some of IPNs based on cross-linked polysiloxanes have been reported in the literature (Zeigler et al, 1990;He et al, 1989;Gilmer et al, 1996) and yet the cross-linked silicone network through selfcondensation of the reactive methoxysilane groups (≡Si-OCH 3 ), has been seldom studied. In this study, an SiUMA based on acrylic PSA with semi-IPN is synthesized in which linear Acrylic and silicone urethane methacrylate network treated as the guest and host polymers, respectively.…”

Section: Semi-interpenetrating Polymer Networkmentioning

confidence: 99%

“…Although some of IPNs based on cross-linked polysiloxanes have been reported in the literature (Gilmer et al, 1996). The IR spectra were obtained on a JASCO FTIR-6100 (Japan) spectrometer equipped with attenuated total reference (ATR) accessories.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of thermally stable acrylic PSA using silicone urethane methacrylate with a semi-IPN structure

Kim

Lee

Park

et al. 2013

Journal of Adhesion Science and Technology

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Synthesis, characterization, and mechanical properties of PMMA/poly(aromatic/aliphatic siloxane) semi-interpenetrating polymer networks

Cited by 28 publications

References 0 publications

Transparent polymer nanocomposites: An overview on their synthesis and advanced properties

Transparent polymer nanocomposites: An overview on their synthesis and advanced properties

Rubber-Modified Glassy Amorphous Polymers Prepared via Chemically Induced Phase Separation. 1. Morphology Development and Mechanical Properties

Synthesis and characterization of thermally stable acrylic PSA using silicone urethane methacrylate with a semi-IPN structure

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