PROCESS FOR MANUFACTURING GRAFT COPOLYMERS OF POLYOLEFINES AND STYRENE

Patent · Wed Aug 21 00:00:00 EDT 1963

OSTI ID:4655241

Callaghan, L; Pinner, S H; Salmon, J F; Smith, R R

A process for the manufacture of a graft copolymer derived from a polyolefin and styrene is patented. A polyolefin film is contacted with styrene in the presence of an aliphatic polyamine, which may be a polyalkylene amine such as tetraethylene pentamine. The contact is made at a temperature that causes the styrene to swell the film without dissolving it. The polyolefin film is pretreated by subjecting it to thermal, ultraviolet, or high-energy radiation to form polymerization-initiating centers. The polyolefin may be polyethylene or polypropylene. The process is carried out in a stainless steel reaction vessel in a N atmosphere. The graft copolymers obtained by the process are especially suitable for conversion into perm-selective membranes. (M.P.G.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-035861
• OSTI ID: 4655241
• Report Number(s): GB 935013
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ALKENES
AMINES
CHEMISTRY
FILMS
GAMMA RADIATION
INERT GASES
IRRADIATION
MEMBRANES
NITROGEN
POLYMERIZATION
POLYMERS
PREPARATION
STAINLESS STEELS
STYRENE
THERMAL RADIATION
ULTRAVIOLET RADIATION
USES
VESSELS