Radiation degradation of. cap alpha. -substituted acrylate polymers and copolymers. [. gamma. radiation]

Journal Article · Mon Feb 28 23:00:00 EST 1977 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1977.070210320· OSTI ID:7311244

Helbert, J N; Caplan, P J; Poindexter, E H

Radiation degradation is observed in poly(methyl ..cap alpha..-chloroacrylate), poly(methyl ..cap alpha..-cyanoacrylate), and poly (..cap alpha..-chloroacrylonitrile) homopolymers and their respective MMA copolymers when ..gamma..-irradiated in vacuo. Polymer degradation susceptibilities are quantified in terms of G(scission radicals) and G(scission) -- G(crosslinks), measured by EPR and membrane osmometry, respectively; values by these two methods are compared. Higher G(rads) values ranging from 2 to 6 and (G(s) -- G(x)) values ranging from 2 to 11 are obtained for the substituted polymers and copolymers relative to the values for PMMA (1.6; 1.9), a standard e-beam positive resist, which suggests that these modified polymers are more sensitive e-beam resists than PMMA.

• Research Organization: Army Electronics Tech. and Devices Lab., Fort Monmouth, NJ
• OSTI ID: 7311244
• Journal Information: J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 21:3; ISSN JAPNA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360406 -- Materials-- Polymers & Plastics-- Radiation Effects-- (-1987)
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COPOLYMERS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ESTERS
G VALUE
GAMMA RADIATION
IONIZING RADIATIONS
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYACRYLATES
POLYMERS
POLYVINYLS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
RESONANCE