Facile Synthesis of Novel Polyethylene-Based A-B-C Block Copolymers Containing Poly(methyl methacrylate) Using a Living Polymerization System

Xiangyang Song; Qiong Ma; Zhengguo Cai; Ryo Tanaka; Takeshi Shiono; Robert B. Grubbs

doi:10.1002/marc.201500614

Facile Synthesis of Novel Polyethylene-Based A-B-C Block Copolymers Containing Poly(methyl methacrylate) Using a Living Polymerization System

Xiangyang Song
, Qiong Ma
, Zhengguo Cai
, Ryo Tanaka
, Takeshi Shiono
, Robert B. Grubbs

Chemistry

Stony Brook University

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

12 Scopus citations

Abstract

Ethylene-propylene-methyl methacrylate (MMA) and ethylene-hexene-MMA A-B-C block copolymers with high molecular weight (>100 000) are synthesized using fluorenylamide-ligated titanium complex activated by modified methylaluminoxane and 2,6-di-tert-butyl-4-methylphenol for the first time. After diblock copolymerization of olefin is conducted completely, MMA is added and activated by aluminum Lewis acid to promote anionic polymerization. The length of polyolefin and poly (methyl methacrylate) (PMMA) is controllable precisely by the change of the additive amount of olefin and polymerization time, respectively. A soft amorphous polypropylene or polyhexene segment is located between two hard segments of semicrystalline polyethylene and glassy PMMA blocks.

Original language	English
Pages (from-to)	227-231
Number of pages	5
Journal	Macromolecular Rapid Communications
Volume	37
Issue number	3
DOIs	https://doi.org/10.1002/marc.201500614
State	Published - Feb 1 2016

Keywords

living polymerization
methyl methacrylate
olefin
single-site catalyst
triblock copolymers

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10.1002/marc.201500614

Cite this

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title = "Facile Synthesis of Novel Polyethylene-Based A-B-C Block Copolymers Containing Poly(methyl methacrylate) Using a Living Polymerization System",

abstract = "Ethylene-propylene-methyl methacrylate (MMA) and ethylene-hexene-MMA A-B-C block copolymers with high molecular weight (>100 000) are synthesized using fluorenylamide-ligated titanium complex activated by modified methylaluminoxane and 2,6-di-tert-butyl-4-methylphenol for the first time. After diblock copolymerization of olefin is conducted completely, MMA is added and activated by aluminum Lewis acid to promote anionic polymerization. The length of polyolefin and poly (methyl methacrylate) (PMMA) is controllable precisely by the change of the additive amount of olefin and polymerization time, respectively. A soft amorphous polypropylene or polyhexene segment is located between two hard segments of semicrystalline polyethylene and glassy PMMA blocks.",

keywords = "living polymerization, methyl methacrylate, olefin, single-site catalyst, triblock copolymers",

author = "Xiangyang Song and Qiong Ma and Zhengguo Cai and Ryo Tanaka and Takeshi Shiono and Grubbs, \{Robert B.\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

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doi = "10.1002/marc.201500614",

language = "English",

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pages = "227--231",

journal = "Macromolecular Rapid Communications",

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TY - JOUR

T1 - Facile Synthesis of Novel Polyethylene-Based A-B-C Block Copolymers Containing Poly(methyl methacrylate) Using a Living Polymerization System

AU - Song, Xiangyang

AU - Ma, Qiong

AU - Cai, Zhengguo

AU - Tanaka, Ryo

AU - Shiono, Takeshi

AU - Grubbs, Robert B.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Ethylene-propylene-methyl methacrylate (MMA) and ethylene-hexene-MMA A-B-C block copolymers with high molecular weight (>100 000) are synthesized using fluorenylamide-ligated titanium complex activated by modified methylaluminoxane and 2,6-di-tert-butyl-4-methylphenol for the first time. After diblock copolymerization of olefin is conducted completely, MMA is added and activated by aluminum Lewis acid to promote anionic polymerization. The length of polyolefin and poly (methyl methacrylate) (PMMA) is controllable precisely by the change of the additive amount of olefin and polymerization time, respectively. A soft amorphous polypropylene or polyhexene segment is located between two hard segments of semicrystalline polyethylene and glassy PMMA blocks.

AB - Ethylene-propylene-methyl methacrylate (MMA) and ethylene-hexene-MMA A-B-C block copolymers with high molecular weight (>100 000) are synthesized using fluorenylamide-ligated titanium complex activated by modified methylaluminoxane and 2,6-di-tert-butyl-4-methylphenol for the first time. After diblock copolymerization of olefin is conducted completely, MMA is added and activated by aluminum Lewis acid to promote anionic polymerization. The length of polyolefin and poly (methyl methacrylate) (PMMA) is controllable precisely by the change of the additive amount of olefin and polymerization time, respectively. A soft amorphous polypropylene or polyhexene segment is located between two hard segments of semicrystalline polyethylene and glassy PMMA blocks.

KW - living polymerization

KW - methyl methacrylate

KW - olefin

KW - single-site catalyst

KW - triblock copolymers

UR - https://www.scopus.com/pages/publications/84956917593

U2 - 10.1002/marc.201500614

DO - 10.1002/marc.201500614

M3 - Article

C2 - 26641599

SN - 1022-1336

VL - 37

SP - 227

EP - 231

JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

IS - 3

ER -

Facile Synthesis of Novel Polyethylene-Based A-B-C Block Copolymers Containing Poly(methyl methacrylate) Using a Living Polymerization System

Abstract

Keywords

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