High-molecular weight diepoxide-dicarboxylic acid addition polymers

Klee, Joachim E.; Claußen, F.; Hörhold, H.‐H.

doi:10.1007/bf00312897

Cited by 6 publications

(1 citation statement)

References 6 publications

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“…At higher temperatures • C) the reaction is accompanied by a number of side reactions, such as the esterification of secondary hydroxyl groups or the ring-opening polymerization of epoxy groups, yielding branched or crosslinked materials. 362,363 The high-temperature acid anhydride-epoxy reaction is a wellknown cure reaction of epoxy resins. …”

Section: Polyesters From Polyaddition Reactionsmentioning

confidence: 99%

Polyesters

Fradet

Tessier

2003

Synthetic Methods in Step‐Growth Polymers

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Section: Polyesters From Polyaddition Reactionsmentioning

confidence: 99%

Polyesters

Fradet

Tessier

2003

Synthetic Methods in Step‐Growth Polymers

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Preparation and characterization of a biodegradable mulch: Paper coated with polymerized vegetable oils

Shogren

1999

J. Appl. Polym. Sci.

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Kraft paper was coated with resins based on vegetable oils and then tested for mechanical properties, rate of biodegradation in soil, and ability to inhibit weed growth. Resins included oxidatively polymerized linseed oil (LO) and a polyester formed by the reaction of epoxidized soybean oil and citric acid (ESO-CA). Tensile strength of LO-coated paper (82 MPa) was slightly higher than uncoated paper (68 MPa), while the tensile strength of ESO-CA coated paper was somewhat lower (45 MPa). Elongations to break (3-8%) were similar for all samples. The rates of weight loss and tensile strength during soil burial decreased as follows: uncoated paper Ͼ LO coated paper Ͼ ESO-CA coated paper. The polymerized oils acted as barriers to penetration of microorganisms to the cellulosic fibers. Resin-coated papers inhibited weed growth for Ͼ 10 weeks, while uncoated paper was highly degraded and ineffective by 6 -9 weeks.

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Preparation of Polyester Polyol from Epoxidized Palm Olein

Lee

2011

Chin. J. Chem.

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In this work, polyester polyols with high weight average molecular weight (M w ) (M w ＝10000-15000) were prepared from epoxidized palm olein (EPO o ) and a series of dicarboxylic acids (C 6 -C 12 ) at elevated temperature under non-catalyzed condition. The optimal reaction conditions were determined as 180 ℃ for 4 h. Longer carbon chain length of dicarboxylic acids was more reactive when reacted with EPO o . The physical appearance of the product was observed as liquid at room temperature. This palm oil-based polyester polyol is proposed as starting material for flexible polyurethane. For reaction monitoring purposes, FTIR was used while 1 H NMR analysis was carried out to characterize the important functional groups of the products. The effects of reaction time and temperature on the M w of the reaction mixture were also studied by GPC.

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High-molecular weight diepoxide-dicarboxylic acid addition polymers

Cited by 6 publications

References 6 publications

Polyesters

Polyesters

Preparation and characterization of a biodegradable mulch: Paper coated with polymerized vegetable oils

Preparation of Polyester Polyol from Epoxidized Palm Olein

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