The radiation crosslinking of poly(vinyl chloride) with trimethylolpropanetrimethacrylate. III. Effect of diundecyl phthalate: chemical kinetics of a three-component system

Journal Article · Mon Aug 01 00:00:00 EDT 1983 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1983.070280809· OSTI ID:5319776

Bowmer, T N; Vroom, W I; Hellman, M Y

The radiation chemistry of poly(vinyl chloride) (PVC) blended with trimethylolpropanetrimethacrylate (TMPTMA) and diundecyl phthalate (DUP) has been examined. This three-component mixture contains a base resin (PVC), a crosslinking sensitizer (TMPTMA), and a physical modifier (DUP). These are the basic components in any radiation-curable coating. The kinetics and mechanism of the crosslinking reactions were studied with reference to the dependence on radiation dose and blend composition. The polyfunctional TMPTMA underwent polymerization incorporating the PVC into a 3-dimensional network. DUP remained chemically inert during the irradiation, not being bound to the network. However, DUP by plasticizing the macromolecules and diluting the monomer, changed the kinetics extensively. DUP enhanced TMPTMA homopolymerization, TMPTMA grafting, and PVC crosslinking reaction rates. The effect of the competition between polymerization, grafting, and degradation reactions was examined in terms of enhanced mobility of the reacting species. The influence of these kinetics considerations in selecting a blend composition for a coating application was discussed.

• Research Organization: Bell Lab., Murray Hill, NJ
• OSTI ID: 5319776
• Journal Information: J. Appl. Polym. Sci.; (United States), Vol. 28:8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PVC
CHEMICAL RADIATION EFFECTS
ACRYLATES
CHEMICAL REACTION KINETICS
CROSS-LINKING
PHTHALATES
POLYMERIZATION
RADIATION DOSES
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
DOSES
HALOGENATED ALIPHATIC HYDROCARBONS
KINETICS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
RADIATION CHEMISTRY
RADIATION EFFECTS
REACTION KINETICS
360406* - Materials- Polymers & Plastics- Radiation Effects- (-1987)