STP954

    Laser Damage Studies of Several Methacrylate Polymeric Materials

    Published: Jan 1986


      Format Pages Price  
    PDF (184K) 10 $25   ADD TO CART
    Complete Source PDF (8.6M) 10 $66   ADD TO CART


    Abstract

    The bulk damage resistance of several acrylic polymers was investigated with a 1.06 μm wavelength pulsed Nd:YAG laser having a pulse length of 8–9 ns and a spot size of 33 μm. These materials were synthesized in bulk form using either thermal or ultraviolet initiation after extensive distillation and/or filtration at the monomers with sub-micron porosity membrane filters. Samples of pure poly(methyl)methacrylate, poly(ethyl)methacrylate and poly(cyclohexyl)methacrylate as well as plasticized polymers were studied. Details of synthesis methods and results of the damage measurements are presented, and the influence of synthesis methods on damage properties is discussed. In addition, a simple technique that uses scattered, depolarized helium-neon laser light to quickly estimate the impurity content of these samples is described and its ability to predict simple-shot damage resistance is discussed. Finally, a somewhat different method of analyzing multiple-shot damage data is applied and the results are discussed.

    Keywords:

    bulk laser damage, multiple-shot, single-shot, plastics, polymethylmethacrylate


    Author Information:

    O'Connell, RM
    University of Missouri-Columbia, Columbia, Missouri

    Ellis, RV
    University of Missouri-Columbia, Columbia, Missouri

    Romberger, AB
    University of Missouri-Columbia, Columbia, Missouri

    Deaton, TF
    University of Missouri-Columbia, Columbia, Missouri

    Siegenthaler, KE
    University of Missouri-Columbia, Columbia, Missouri

    Shaffer, AA
    University of Missouri-Columbia, Columbia, Missouri

    Mullins, BW
    University of Missouri-Columbia, Columbia, Missouri

    Saito, TT
    University of Missouri-Columbia, Columbia, Missouri


    Paper ID: STP23105S

    Committee/Subcommittee: F01.19

    DOI: 10.1520/STP23105S


    CrossRef ASTM International is a member of CrossRef.