STUDY OF RADIATION INDUCED SOLID STATE POLYMERIZATION. Annual Progress Report for February 1, 1958 to February 1, 1959
Acrylamide and acrylic acid salts were irradiated in the crystalline state with Color rays at -- 70 deg C. The changes of polymer yield and molecular weight were followed as a function of time. Polymerization of acrylamide in solid solutions containing 5 or 10 mole% of the isomorphous propionamide gives evidence that the propionamide acts as a fairly efficient chain transfer agent. The polymerization of acrylic acid salts varies greatly with the cation, the potassium and calcium salts polymerizing rapidly at ordinary temperatures, while the sodium and lithium salts react appreciably only above 120 deg C. Methacrylic acid salts could not be polymerized under the conditions investigated. Butadiene- I-carboxylic acid polymerizes spontaneously in the crystalline form to cross- linked products. (W.D.M.)
- Research Organization:
- Brooklyn. Polytechnic Inst.
- NSA Number:
- NSA-14-015650
- OSTI ID:
- 4156003
- Report Number(s):
- NYO-7231
- Country of Publication:
- United States
- Language:
- English
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