Functionally substituted poly (α-olefins)

Padwa, Allen R.

doi:10.1016/0079-6700(89)90010-5

Cited by 65 publications

(40 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Linear polyethylene (PE) is the most abundantly produced plastic owing to its inexpensive monomer,t hermoplastic properties,a nd semi-crystalline nature.T he hydrocarbon composition of PE imparts hydrophobic character to the material, af eature that dictates the surface properties (for example,a dhesion and wettability), permeability,a nd rheology. [1] One strategy for tuning these properties is to introduce functional groups along the PE backbone through either postpolymerization modification [2] such as surface treatments, [3] oxidation, [4] "click" reactions, [5] and CÀHa ctivation, [6] or by copolymerization of ethylene with functional vinyl monomers. [7] While the latter has been achieved with free radical polymerization of ethylene,t he high temperatures and pressures required result in ah ighly branched amorphous PE material lacking the desired semi-crystalline properties of linear PE.…”

mentioning

confidence: 99%

Semi‐Crystalline Polar Polyethylene: Ester‐Functionalized Linear Polyolefins Enabled by a Functional‐Group‐Tolerant, Cationic Nickel Catalyst

et al. 2016

View full text Add to dashboard Cite

A dibenzobarrelene-bridged, α-diimine Ni(II) catalyst (rac-3) was synthesized and shown to have exceptional behavior for the polymerization of ethylene. The catalyst afforded high molecular weight polyethylenes with narrow dispersities and degrees of branching much lower than those made by related α-diimine nickel catalysts. Catalyst rac-3 demonstrated living behavior at room temperature, produced linear polyethylene (Tm =135 °C) at -20 °C, and, most importantly, was able to copolymerize ethylene with the biorenewable polar monomer methyl 10-undecenoate to yield highly linear ester-functionalized polyethylene.

show abstract

mentioning

confidence: 99%

Semi‐Crystalline Polar Polyethylene: Ester‐Functionalized Linear Polyolefins Enabled by a Functional‐Group‐Tolerant, Cationic Nickel Catalyst

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The incorporation of polar functional groups into nonpolar polymers is an essential strategy for modifying the strength, toughness, and solvent resistance of a polymeric material . Industrial examples include acrylonitrile–butadiene–styrene (ABS) and ethylene–vinyl acetate (EVA) .…”

Section: Methodsmentioning

confidence: 99%

A BN Aromatic Ring Strategy for Tunable Hydroxy Content in Polystyrene

et al. 2018

View full text Add to dashboard Cite

BN 2‐vinylnaphthalene, a BN aromatic vinyl monomer, is copolymerized with styrene under free radical conditions. Oxidation yields styrene–vinyl alcohol (SVA) statistical copolymers with tunable hydroxy group content. Comprehensive spectroscopic investigation provides proof of structure. Physical properties that vary systematically with hydroxy content include solubility and glass transition temperature. BN aromatic polymers represent a platform for the preparation of diverse functional polymeric architectures via the remarkable reaction chemistry of C−B bonds.

show abstract

“…Copolymers of nonpolar alkenes with polar monomers with various architectures remain an ultimate goal in polyolefin engineering, since, of the many permutations available for modifying the properties of the polymers, the incorporation of functional groups into an otherwise nonpolar material is substantial (1)(2). In particular, polynorbornenes exhibits rather high thermal stability, superior etch resistance and excellent dielectric properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Norbornene and Methyl Methacrylate Graft Copolymers with High Norbornene Content by Using Mixed Catalytic System

Song

Hou

et al. 2008

Journal of Macromolecular Science, Part A

View full text Add to dashboard Cite

A vinyl-type polymer of norbornene containing a few pendant styrene groups obtained by copolymerization of norbornene and 1,4-divinylbenzene (1,4-DVB) was used as a macroinitiator in the reverse atom transfer radical polymerization (RATRP) of methyl methacrylate in conjunction with CuCl 2 /2,2 -bipyridine/2,2 -azobisisobutyronitrile (AIBN) as a catalyst. In the first step of the reaction, the structural characterization of the copolymers showed that norbornene and 1,4-divinylbenzene copolymerizations occur as a coordination mechanism and that true copolymers are formed by random copolymerization. With the initiation of copper dichloride and AIBN in the second step, the pendant styrene groups in the copolymers were quantitatively polymerized with methyl methacrylates, which allowed the successful synthesis of polynorbornene-based graft copolymers by RATRP mechanism. The analyses of the product by 1 H-and 13 C-NMR and GPC gel permeation chromatography (GPC) gave the verification of 'true' copolymer. Varying the monomer feed ratio controlled the thermal property of the graft copolymer.

show abstract

Functionally substituted poly (α-olefins)

Cited by 65 publications

References 21 publications

Semi‐Crystalline Polar Polyethylene: Ester‐Functionalized Linear Polyolefins Enabled by a Functional‐Group‐Tolerant, Cationic Nickel Catalyst

Semi‐Crystalline Polar Polyethylene: Ester‐Functionalized Linear Polyolefins Enabled by a Functional‐Group‐Tolerant, Cationic Nickel Catalyst

A BN Aromatic Ring Strategy for Tunable Hydroxy Content in Polystyrene

Synthesis of Norbornene and Methyl Methacrylate Graft Copolymers with High Norbornene Content by Using Mixed Catalytic System

Contact Info

Product

Resources

About