Light Scattering And Absorption By Glassy Poly (Methyl Methacrylate) (PMMA) And Polystyrene (PS)

B. Christ; M. Marhic

doi:10.1117/12.932498

26 February 1982 Light Scattering And Absorption By Glassy Poly (Methyl Methacrylate) (PMMA) And Polystyrene (PS)

B. Christ, M. Marhic

Proceedings Volume 0297, Emerging Optical Materials; (1982) https://doi.org/10.1117/12.932498
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

Extremely pure glasses of poly(methyl methacrylate), PΜΜA, and polystyrene, PS, have been prepared for examination of bulk scattering and absorption properties. PS, which is atactic, forms glasses which show no excess light scattering whatever; these glasses resemble liquids. PMMA, on the other hand, is predominantly syndiotactic. Glassy PΜΜA has intense forward scattering from intrinsic heterogeneities characterized by a dimension of ~70 nm. The concentration and size of these structures are controlled by tacticity and molecular weight of the macromolecules and by the temperature history of the glass. These scattering studies have been complemented by laser calorimetry to measure optical absorption over the range of wavelengths λ = 490-680 nm. Here the differences in absorption are attributed to the chemical compositions of the two glasses. From the combined effects of scattering and absorption, total losses of 100-200 dB/km are anticipated from the bulk properties of polymer glasses.

Citation Download Citation

B. Christ and M. Marhic "Light Scattering And Absorption By Glassy Poly (Methyl Methacrylate) (PMMA) And Polystyrene (PS)", Proc. SPIE 0297, Emerging Optical Materials, (26 February 1982); https://doi.org/10.1117/12.932498

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available