PHYSICAL PROPERTIES OF POLYPROPYLENE-STYRENE GRAFT COPOLYMER INDUCED BY IRRADIATION

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Proc. Japan Conf. Radioisotopes

OSTI ID:4697305

Iida, S; Sakami, H; Adachi, T; Hori, S

The physical properties of styrene grafted polypropylene, such as viscoelasticity and thermal expansion in the glass transition region, were measured to get information on the structure of amorphous region. On the other hand, x-ray diffraction measurement and microscopic observation were effected to make clear the effects of grafi copolymerization on the crystalline region of polypropylene. It was found that the amorphous region of polypropylene decreased by graft copolymerization. The homogenrously mixed structure of polypropylene and polystyrene was induced by graft copolymerization and formed in the amorphous region. Styrene diffused to the amorphous region and imperfect crystals of polypropylene and polymerized; therefore, a homogeneous mixture of polypropylene and polystyrene formed. Styrene penetrated into the gaps of lamellas, and the amorphous region of pure polystyrene was formed by polymerization. (P.C.H.)

• Research Organization: Government Industrial Research Inst., Nagoya
• NSA Number: NSA-17-030202
• OSTI ID: 4697305
• Journal Information: Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 5th, No. 4
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

CRYSTALS
DIFFRACTION
DIFFUSION
ELASTICITY
EXPANSION
GENERAL AND MISCELLANEOUS
GLASS
GRAFT POLYMERS
HOMOGENEOUS REACTORS
LATTICES
MEASURED VALUES
MICROSCOPY
POLYMERIZATION
POLYMERS
POLYSTYRENE
PROPYLENE
STYRENE
TRANSIENTS
VISCOSITY
X RADIATION