Readily Curable Chlorinated Poly-α-olefins and Ethylene-α-olefin Copolymers

Makowski, Henry S.; Cain, William P.; Wei, Peng

doi:10.1021/i360012a007

Cited by 10 publications

(2 citation statements)

References 9 publications

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“…Therefore, modifications of EPDM are as a way for curing of the saturated EPDM rubbers to extend the applications of EPDM. This includes chlorination, self-chlorination [3,4] and grafting [5,6] of EPDM rubbers. Among these modifications of EPDM, grafting reagents to preformed polymers is an important method for the preparation of polymers with functional groups and the nano-EPDM hybrids with pendant functional groups are particularly interesting.…”

Section: Introductionmentioning

confidence: 99%

Modification of the structure of EPDM by chemically grafting inorganic species

Nien

Yeh

Shih

et al. 2014

J Sol-Gel Sci Technol

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A series of ethylene propylene diene monomer (EPDM) nanocomposites have been prepared. First of all, EPDM is modified by grafting maleic anhydride to EPDM backbone. Subsequently, ethanolamine, 3-aminopropyltriethoxysilane and glycerine are added to react with the pendent anhydride to form grafted polyimides or polyols, respectively. The primary inorganic precursor, tetraethylsiloxane, is incorporated into these variously modified EPDM under acid condition to form the EPDM composites. The thermal properties of thermogravimetric analysis shows that the 20 % weight loss temperatures and char yields of various EPDM composites are higher than that of pristine EPDM. From the dynamic mechanic analysis studies, it exhibits both E 0 and E 00 of the composites are much higher than that of EPDM matrix. As confirmed by scanning electron microscopy, phase distributions of nanoinorganic component/SiO 2 evenly disperse in these EPDM composites are correlated to exhibit higher rigidity and toughness than that of neat EPDM.

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Section: Introductionmentioning

confidence: 99%

Modification of the structure of EPDM by chemically grafting inorganic species

Nien

Yeh

Shih

et al. 2014

J Sol-Gel Sci Technol

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“…Thus the extent of vinylation can be controlled by controlling the concentration of tert-chlorines in the polymer. By appropriate methods (3,4), the amount of tertchlorine, in preference to secondary and primary chlorines, can be maximized.…”

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confidence: 99%

Vinylation and polymerization with trivinylaluminum. III. Vinylation of chlorinated ethylene‐propylene rubber and crosslinking

Kennedy

Mandal

1977

J. Polym. Sci. B Polym. Lett. Ed.

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The first two papers (1,2) of this series concerned the use of trivinylaluminum (V3Al) as a vinylating agent for tert-alkyl and sec-or tert-allylic chlorides and as a coinitiator for isobutylene polymerization. These researches led to an increased understanding of the mechanism, particularly termination, of cationic olefm polymerizations and ultimately to the synthesis of a telechelic polymer, a,wdiene-polyisobutylene.The present paper describes the use of V3Al in polymer modification. In line with model experiments (l), it was postulated that polymers, particularly polyhydrocarbons containing active chlorine (tert-alkyl, allyl) atoms, could be vinylated by V3Al leading to products capable of further valuable transformations by the reactive vinyl group.We selected to demonstrate the feasibility of this concept by vinylating a saturated rubber [poly(ethylene-co-propylene), EPM] and subsequently crosslinking it with SzClz. The following equations illustrate the experimental scheme envisioned: H network 595 0 1977 by John Wiley 8~ Sons, Inc.

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Functionalization of atactic polypropylene using allyl and azide compounds

Borsig¹,

Braun²

1987

Angew. Makromol. Chem.

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Atactic polypropylene was functionalized by reaction with dicumyl peroxide (8 wt.-%) and ally1 compounds (8 wt.-Yo) such as eugenol methylether, allylphenylether, allylurea, N-allylthiourea, diethyl allylmalonate, N-allylaniline at 170 "C. Using tert-butyl azidoformate carbamate groups (1.8 wt.-070) were attached to atactic polypropylene. The mechanism of both types of reactions is discussed. ZUSAMMENFASSUNG: Ataktisches Polypropylen wurde durch die Umsetzung mit Dicumylperoxid (8 Gew.-Yo) und einer Allylverbindung (8 Gew.-%) (Eugenolmethylether, Allylphenylether, Allylharnstoff, N-Allylthioharnstoff, Allylmalonslurediethylester und N-Allylanilin) bei 170 "C funktionalisiert. Bei der Reaktion von tert-Butylazidoformat mit ataktischem Polypropylen wurden maximal 1,8 Gew.-% Carbamatgruppen in das Polymere eingebaut. Die Mechanismen der beiden Reaktionstypen werden diskutiert .

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Readily Curable Chlorinated Poly-α-olefins and Ethylene-α-olefin Copolymers

Cited by 10 publications

References 9 publications

Modification of the structure of EPDM by chemically grafting inorganic species

Modification of the structure of EPDM by chemically grafting inorganic species

Vinylation and polymerization with trivinylaluminum. III. Vinylation of chlorinated ethylene‐propylene rubber and crosslinking

Functionalization of atactic polypropylene using allyl and azide compounds

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