Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis

Takeshi Maeda; Shigehisa Kamimura; Tomoyuki Ohishi; Atsushi Takahara; Hideyuki Otsuka

doi:10.1016/j.polymer.2014.10.001

Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis

Takeshi Maeda, Shigehisa Kamimura, Tomoyuki Ohishi, Atsushi Takahara, Hideyuki Otsuka

Department of Applied Molecular Chemistry

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

29 Citations (Scopus)

Abstract

The synthesis and characterization of linear polyethylene/polyester copolymers produced by olefin cross metathesis and subsequent catalytic hydrogenation are described. The success of the scrambling reaction between 1,4-polybutadiene and unsaturated polyester via olefin cross metathesis was confirmed by ¹H NMR. Differential scanning calorimetric (DSC) measurements indicated that the size of the copolymer blocks varied gradually with the exchange ratio. Catalytic hydrogenation of the unsaturated copolymers with different exchange ratios was carried out using Pd-Al₂O₃. The crystallinity of the resulting hydrogenated polymers depended on the exchange ratios achieved during olefin cross metathesis. This suggests that the unique sequential structure imparted to the unsaturated polymers during metathesis was retained during the hydrogenation process.

Original language	English
Pages (from-to)	6245-6251
Number of pages	7
Journal	polymer
Volume	55
Issue number	24
DOIs	https://doi.org/10.1016/j.polymer.2014.10.001
Publication status	Published - Nov 18 2014

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2014.10.001

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title = "Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis",

abstract = "The synthesis and characterization of linear polyethylene/polyester copolymers produced by olefin cross metathesis and subsequent catalytic hydrogenation are described. The success of the scrambling reaction between 1,4-polybutadiene and unsaturated polyester via olefin cross metathesis was confirmed by 1H NMR. Differential scanning calorimetric (DSC) measurements indicated that the size of the copolymer blocks varied gradually with the exchange ratio. Catalytic hydrogenation of the unsaturated copolymers with different exchange ratios was carried out using Pd-Al2O3. The crystallinity of the resulting hydrogenated polymers depended on the exchange ratios achieved during olefin cross metathesis. This suggests that the unique sequential structure imparted to the unsaturated polymers during metathesis was retained during the hydrogenation process.",

author = "Takeshi Maeda and Shigehisa Kamimura and Tomoyuki Ohishi and Atsushi Takahara and Hideyuki Otsuka",

note = "Funding Information: The authors gratefully acknowledge the financial support of the Funding Program for Next Generation World-Leading Researchers (Green Innovation GR077) from the Cabinet Office, Government of Japan. This research was also supported by a Grant-in-Aid for Scientific Research (26288057) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT). Publisher Copyright: {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

year = "2014",

month = nov,

day = "18",

doi = "10.1016/j.polymer.2014.10.001",

language = "English",

volume = "55",

pages = "6245--6251",

journal = "Polymer",

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publisher = "Elsevier BV",

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T1 - Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis

AU - Maeda, Takeshi

AU - Kamimura, Shigehisa

AU - Ohishi, Tomoyuki

AU - Takahara, Atsushi

AU - Otsuka, Hideyuki

N1 - Funding Information: The authors gratefully acknowledge the financial support of the Funding Program for Next Generation World-Leading Researchers (Green Innovation GR077) from the Cabinet Office, Government of Japan. This research was also supported by a Grant-in-Aid for Scientific Research (26288057) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT). Publisher Copyright: © 2014 Elsevier B.V. All rights reserved.

PY - 2014/11/18

Y1 - 2014/11/18

N2 - The synthesis and characterization of linear polyethylene/polyester copolymers produced by olefin cross metathesis and subsequent catalytic hydrogenation are described. The success of the scrambling reaction between 1,4-polybutadiene and unsaturated polyester via olefin cross metathesis was confirmed by 1H NMR. Differential scanning calorimetric (DSC) measurements indicated that the size of the copolymer blocks varied gradually with the exchange ratio. Catalytic hydrogenation of the unsaturated copolymers with different exchange ratios was carried out using Pd-Al2O3. The crystallinity of the resulting hydrogenated polymers depended on the exchange ratios achieved during olefin cross metathesis. This suggests that the unique sequential structure imparted to the unsaturated polymers during metathesis was retained during the hydrogenation process.

AB - The synthesis and characterization of linear polyethylene/polyester copolymers produced by olefin cross metathesis and subsequent catalytic hydrogenation are described. The success of the scrambling reaction between 1,4-polybutadiene and unsaturated polyester via olefin cross metathesis was confirmed by 1H NMR. Differential scanning calorimetric (DSC) measurements indicated that the size of the copolymer blocks varied gradually with the exchange ratio. Catalytic hydrogenation of the unsaturated copolymers with different exchange ratios was carried out using Pd-Al2O3. The crystallinity of the resulting hydrogenated polymers depended on the exchange ratios achieved during olefin cross metathesis. This suggests that the unique sequential structure imparted to the unsaturated polymers during metathesis was retained during the hydrogenation process.

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U2 - 10.1016/j.polymer.2014.10.001

DO - 10.1016/j.polymer.2014.10.001

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VL - 55

SP - 6245

EP - 6251

JO - Polymer

JF - Polymer

IS - 24

ER -

Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis

Abstract

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