Functional Polymers. XLIII. Olefin Copolymers of 2, 6-Di-t-butyl-4-vinyl (or 4-isopropenyl) phenol

Grosso, Paul V.; Vogl, Otto

doi:10.1080/00222338608081123

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…The synthesis of diene copolymers containing 4-vinylphenol has been reported previously in the literature, with most examples requiring the use of a protective group . It is necessary to choose the protective group with care to ensure that deprotection can be achieved quantitatively and without the occurrence of undesirable cyclization and/or cross-linking reactions.…”

Section: Methodsmentioning

confidence: 99%

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Functional Group Accessibility in Hydrogen Bonded Polymer Blends

1996

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Accessibility of functional groups is an important concept in the mixing of polymers and involves factors such as chain connectivity, steric shielding, etc., all of which tend to limit the number of interchain contacts formed. Infrared spectroscopy is well suited to study functional group accessibility in carefully selected miscible hydrogen bonded polymer blend systems, because the fraction of interchain hydrogen bonded groups can be measured quantitatively. Such measurements have been made on blends consisting of a wide range of carbonyl containing (co)polymers with a 2,3-dimethylbutadiene-stat-4-vinylphenol containing 24 wt % 4-vinylphenol. Evidence has been obtained for decreasing accessibility of the carbonyl groups of the poly(n-alkyl methacrylate)s due to steric shielding from bulky side groups. Conversely, when these groups are spaced further apart in an ethylene-stat-vinyl acetate or ethylene-stat-methyl methacrylate copolymer chain, they become much more accessible. The effect of functional group accessibility on the scaling and transferability of self- and interassociation equilibrium constants is discussed, together with ramifications in terms of the prediction of miscibility windows and maps for hydrogen bonded polymer blends.

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Section: Methodsmentioning

confidence: 99%

“…For our purposes the studies of Ledwith and co-workers are germane as these authors have demonstrated that the acetyl protection group can be removed under mild conditions using hydrazine hydrate. Statistical copolymers of DMB and AcOSt were prepared by emulsion polymerization in a manner similar to that described by Grosso and Vogl 7a…”

Section: Methodsmentioning

confidence: 99%

Functional Group Accessibility in Hydrogen Bonded Polymer Blends

1996

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Polymer modification to achieve novel properties

Vogl¹,

Sustic²

1987

Makromolekulare Chemie. Macromolecular Symposia

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Polymers have been modified, by subjecting them to reactions in solution, in the melt and in the solid state. Novel polymers with improved and optimized properties have also been created by copolymerization, chain transfer or by the design of chain termination. Even by manipulating the initiation step in polymerizations, functional and reactive groups have been introduced at the head of the polymer chain. Polymer properties have been modified by influencing physical properties of polymers by orienting, annealing and blending.

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Hydrogen bonded polymer blends and the design of miscible polymeric antioxidants

Coleman¹,

Yang²,

Stallman³

et al. 1995

Macromolecular Symposia

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The relative magnitude of the equilibrium constants describing self‐association versus inter‐association is an important factor in determining the phase behavior of polymers that hydrogen bond. In studies of sterically hindered phenolics we have found that poly(2,6‐diisopropyl‐4‐vinylphenol) (PDIPP) only moderately self‐associates, but strongly inter‐associates with polymers containing groups such as ester carbonyls, ether oxygens, and the like. PDIPP is miscible with polytetrahydrofuran (PTHF) and simultaneously acts as an efficient polymeric antioxidant. This result points the way to the design of specific miscible polymeric antioxidants for polar polymers.

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Functional Polymers. XLIII. Olefin Copolymers of 2, 6-Di-t-butyl-4-vinyl (or 4-isopropenyl) phenol

Cited by 5 publications

References 16 publications

Functional Group Accessibility in Hydrogen Bonded Polymer Blends

Functional Group Accessibility in Hydrogen Bonded Polymer Blends

Polymer modification to achieve novel properties

Hydrogen bonded polymer blends and the design of miscible polymeric antioxidants

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