Palladium(II)-catalyzed alternating copolymerization and terpolymerization of carbon monoxide with [alpha]-Olefins: Formation of syndiotactic copolymers as well as terpolymers with both syndiotactic and atactic segments

Journal Article · Mon Mar 01 00:00:00 EST 1993 · Macromolecules; (United States)

DOI:https://doi.org/10.1021/ma00057a005· OSTI ID:6482873

Sen, Ayusman; Jiang, Zhaozhong ^[1]

---

1. Pennsylvania State Univ., University Park (United States)

[Pd(1,10-phenanthroline)(MeCN)[sub 2]](BF[sub 4])[sub 2] and related complexes were found to catalyze the alternating copolymerization of styrene derivatives with carbon monoxide to form syndiotactic copolymers with strictly head-to-tail arrangement in the polymer backbone. The polymers, as formed, were highly crystalline although the crystallinity (but not the stereoregularity) was lost upon dissolution in acids followed by reprecipitation. The Pd(2) catalysts were also found to catalyze the terpolymerization of ethylene, propylene, [omega]-undecylenyl alcohol, and [omega]-methyl undecylenate with styrene and carbon monoxide. At high ratios of styrene to the second olefin, the terpolymers formed had structures consisting of syndiotactic alternating styrene-CO blocks randomly separated by atactic spacers formed by the alternating second olefin-CO units. The tactic styrene-CO blocks were lost with increasing content of the second olefin.

• DOE Contract Number: FG02-84ER13295
• OSTI ID: 6482873
• Journal Information: Macromolecules; (United States), Vol. 26:5; ISSN 0024-9297
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON MONOXIDE
COPOLYMERIZATION
COPOLYMERS
SYNTHESIS
PALLADIUM
CATALYTIC EFFECTS
ALKENES
CATALYSIS
CHEMICAL COMPOSITION
STYRENE
ALKYLATED AROMATICS
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POLYMERIZATION
POLYMERS
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties