Homopolymer Interfaces Reinforced with Random Copolymers

Kulasekere, R.; Kaiser, H.; Ankner, John F.; Russell, Thomas P.; Brown, Hugh R.; Hawker, Craig J.; Mayes, Anne M.

doi:10.1021/ma960382m

Cited by 89 publications

(113 citation statements)

References 20 publications

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“…The absence of significant blockiness of styrene and 2-vinylpyridine monomers in the copolymers was verified by proton and 13 C NMR. Detailed 13 C NMR spectra are shown in the Appendix. The styrene unit in the copolymer was deuterated in order to allow for its use as a label in the subsequent FRES experiments.…”

Section: Methodsmentioning

confidence: 99%

Effect of the Monomer Ratio on the Strengthening of Polymer Phase Boundaries by Random Copolymers

et al. 1997

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Section: Methodsmentioning

confidence: 99%

Effect of the Monomer Ratio on the Strengthening of Polymer Phase Boundaries by Random Copolymers

et al. 1997

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“…Russell and co-workers explored PS/PMMA/P(MMA-co-S) systems and demonstrated that fracture toughness was maximized when the statistical copolymer contained 32 mole percent MMA. [23][24][25] Blend Mechanical Properties The efficacy of copolymer compatibilizers was investigated by exploring the mechanical properties of the polymer FIGURE 4 SEM images of different blends. About 100 particles were circled manually, and the number-average diameters (d n ) were determined using ImageJ software.…”

Section: Polymer Blend Compatibilizationmentioning

confidence: 99%

Synthesis and utility of ethylene (meth)acrylate copolymers prepared by a tandem ring‐opening polymerization hydrogenation strategy

Onbulak

Wang

Brutman

2017

J. Polym. Sci. Part A: Polym. Chem.

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One new and one established functional cyclooctene were prepared and (co)polymerized using ring-opening metathesis polymerization. The resulting polymers were hydrogenated to yield the corresponding functional polyolefins that were structurally equivalent to copolymers of ethylene and either methyl methacrylate, t-butyl acrylate, or acrylic acid after deprotection. The copolymers that incorporate methyl methacrylate into the backbone were used as compatibilizers for poly(methyl methacrylate)/polyethylene blends. The copolymers that incorporate t-butyl acrylate into the backbone yielded elastomers that could be thermally crosslinked. V C 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 3117-3126 KEYWORDS: compatibilization; copolymer; methyl methacrylate; ROMP; thermoset polyolefins INTRODUCTION The ring-opening metathesis polymerization (ROMP) of functionalized cyclooctenes (COEs) followed by hydrogenation of the olefinic groups in the polymer backbone is a powerful method for the preparation of functionalized polyolefins. Many 3-substituted COEs provide regiospecific polymers 1 while 4-and 5-substituted COEs typically give regioirregular polymers. The broad utility of this approach to materials useful for a wide variety of interesting applications has been clearly demonstrated in the literature. [2][3][4] The success of these approaches can be in large part attributed to the robust nature of ruthenium-based metathesis catalysts developed by Robert H. Grubbs and coworkers. [5][6][7] Indeed, these catalysts have been referred to by some as empyrean. 8

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“…The majority of work on CLRP in the literature focuses on molecular weight control in homopolymerization, although copolymerization is of particular importance in preparing polymer products with tailored properties. [15][16][17] By changing the type of comonomers and their relative amounts, a large number of polymer products can be designed. In addition to MW and MWD, copolymer composition (CC) and copolymer composition distribution (CCD) are also key parameters that determine materials properties of a copolymer product.…”

Section: Introductionmentioning

confidence: 99%

Control of gradient copolymer composition in ATRP using semibatch feeding policy

et al. 2006

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in Wiley InterScience (www.interscience.wiley.com).Controlled/living radical copolymerization (CLRcoP) operated in a batch process is subject to composition drifting and thus produces spontaneous gradient copolymer. The composition distribution along the chain length of individual chains is solely determined by the reactivities of comonomers and the as-synthesized product is uncontrolled. Design of the composition vs. chain length profile provides a new route for developing polymer materials with tailor-made properties. Presented in this article is a theoretical mainframe used for the control over composition distribution along the chain length in atom transfer radical copolymerization. The control is based on a semibatch reactor technology with programmed comonomer feeding rates. Illustrated are three copolymerization model systems with representative reactivity ratios. The targeted composition distribution profiles are uniform, linear gradient, parabolic gradient, hyperbolic gradient, and di-block and tri-block distributions.

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Homopolymer Interfaces Reinforced with Random Copolymers

Cited by 89 publications

References 20 publications

Effect of the Monomer Ratio on the Strengthening of Polymer Phase Boundaries by Random Copolymers

Effect of the Monomer Ratio on the Strengthening of Polymer Phase Boundaries by Random Copolymers

Synthesis and utility of ethylene (meth)acrylate copolymers prepared by a tandem ring‐opening polymerization hydrogenation strategy

Control of gradient copolymer composition in ATRP using semibatch feeding policy

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