Cationic cyclization of neoprene with a diethylaluminum chloride and organic chloride catalyst system

Chaoyang Wang; Xuepin Huang; Jihua Yang

doi:10.1002/app.11196

Cationic cyclization of neoprene with a diethylaluminum chloride and organic chloride catalyst system

Chaoyang Wang
, Xuepin Huang
, Jihua Yang

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The cyclization of neoprene was achieved with the aid of a cationic catalyst system based on diethyl-aluminum chloride (Et₂AlCl) and an organic chloride, allyl chloride (CH₂ = CHCH₂Cl) or benzyl chloride (C₆H₅CH₂Cl). The main parameters of the cyclization process were investigated. Elastomers with low intrinsic viscosity, ready solubility and some gelling were obtained. Xylene was a good solvent for the cyclization process, which took place in a very short time (≤5 min). The products were characterized with IR, ¹H-NMR, differential scanning calorimetry, and gel permeation chromatography. The polycyclic structure was determined. The degree of cyclization and the incorporated solvent content were estimated with a ¹H-NMR method.

Original language	English (US)
Pages (from-to)	2227-2231
Number of pages	5
Journal	Journal of Applied Polymer Science
Volume	86
Issue number	9
DOIs	https://doi.org/10.1002/app.11196
State	Published - Nov 28 2002
Externally published	Yes

Keywords

Cationic cyclization
Elastomers
Modification
Rubber

Publisher link

10.1002/app.11196

Find It

Find It at U of M Libraries

Cite this

@article{d486c6487df64ba4a375f51c8d7c6a07,

title = "Cationic cyclization of neoprene with a diethylaluminum chloride and organic chloride catalyst system",

abstract = "The cyclization of neoprene was achieved with the aid of a cationic catalyst system based on diethyl-aluminum chloride (Et2AlCl) and an organic chloride, allyl chloride (CH2 = CHCH2Cl) or benzyl chloride (C6H5CH2Cl). The main parameters of the cyclization process were investigated. Elastomers with low intrinsic viscosity, ready solubility and some gelling were obtained. Xylene was a good solvent for the cyclization process, which took place in a very short time (≤5 min). The products were characterized with IR, 1H-NMR, differential scanning calorimetry, and gel permeation chromatography. The polycyclic structure was determined. The degree of cyclization and the incorporated solvent content were estimated with a 1H-NMR method.",

keywords = "Cationic cyclization, Elastomers, Modification, Rubber",

author = "Chaoyang Wang and Xuepin Huang and Jihua Yang",

year = "2002",

month = nov,

day = "28",

doi = "10.1002/app.11196",

language = "English (US)",

volume = "86",

pages = "2227--2231",

journal = "Journal of Applied Polymer Science",

issn = "0021-8995",

publisher = "John Wiley \& Sons Inc.",

number = "9",

}

TY - JOUR

T1 - Cationic cyclization of neoprene with a diethylaluminum chloride and organic chloride catalyst system

AU - Wang, Chaoyang

AU - Huang, Xuepin

AU - Yang, Jihua

PY - 2002/11/28

Y1 - 2002/11/28

N2 - The cyclization of neoprene was achieved with the aid of a cationic catalyst system based on diethyl-aluminum chloride (Et2AlCl) and an organic chloride, allyl chloride (CH2 = CHCH2Cl) or benzyl chloride (C6H5CH2Cl). The main parameters of the cyclization process were investigated. Elastomers with low intrinsic viscosity, ready solubility and some gelling were obtained. Xylene was a good solvent for the cyclization process, which took place in a very short time (≤5 min). The products were characterized with IR, 1H-NMR, differential scanning calorimetry, and gel permeation chromatography. The polycyclic structure was determined. The degree of cyclization and the incorporated solvent content were estimated with a 1H-NMR method.

AB - The cyclization of neoprene was achieved with the aid of a cationic catalyst system based on diethyl-aluminum chloride (Et2AlCl) and an organic chloride, allyl chloride (CH2 = CHCH2Cl) or benzyl chloride (C6H5CH2Cl). The main parameters of the cyclization process were investigated. Elastomers with low intrinsic viscosity, ready solubility and some gelling were obtained. Xylene was a good solvent for the cyclization process, which took place in a very short time (≤5 min). The products were characterized with IR, 1H-NMR, differential scanning calorimetry, and gel permeation chromatography. The polycyclic structure was determined. The degree of cyclization and the incorporated solvent content were estimated with a 1H-NMR method.

KW - Cationic cyclization

KW - Elastomers

KW - Modification

KW - Rubber

UR - https://www.scopus.com/pages/publications/0037191580

UR - https://www.scopus.com/pages/publications/0037191580#tab=citedBy

U2 - 10.1002/app.11196

DO - 10.1002/app.11196

M3 - Article

AN - SCOPUS:0037191580

SN - 0021-8995

VL - 86

SP - 2227

EP - 2231

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 9

ER -

Cationic cyclization of neoprene with a diethylaluminum chloride and organic chloride catalyst system

Abstract

Keywords

Publisher link

Find It

Other files and links

Fingerprint

Cite this