Linear polymers with sulfur in the main chain. II. Synthesis of polyesters by interfacial polycondensation of bis(4,4′‐hydroxyphenyl)sulfide with several aliphatic acid dichlorides and their properties

Honda, Hiroshi; Watase, Seiji; Tanaka, Mitsuaki

doi:10.1002/app.13271

Cited by 18 publications

(19 citation statements)

References 14 publications

(14 reference statements)

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“…The polymers with even numbers of methylene units show a higher T g , T m , crystallinity, and gas barrier property against oxygen permeation than those with even ones. In particular, the polymers with 4, 6, 8, as well as 3 methylene units have lower oxygen permeabilities than those of PET (433).…”

Section: Polyesters Containing Sulfur Linkagesmentioning

confidence: 95%

Sulfur‐Containing Polymers

Kultys

2010

Encyclopedia of Polymer Science and Technology

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Sulfur-containing polymers, when considering their structure, make up a complex group of macromolecular compounds of varied and often remarkable features that determine their versatile applications.The presence of sulfur atoms in polymer structure, depending on the kind of functional group, can improve some important properties, such as mechanical, electrical, and optical, and then adhesion to metals, resistance to heat, chemicals, radiation, and bacteria, biocompatibility, and so on. These are their more important functional groups: sulfide -S-, polysulfide -S n -, sulfonyl -SO 2 -, sulfinyl -SO-, sulfo -SO 3 H, as well as some organic groups containing sulfur atoms, such as thioester -Sulfur-containing polymers can be used as high performance engineering plastics, chemically stable ion-exchange membranes in electromembrane processes, proton-conducting electrolytes, as well as optical, optoelectronic, and photochemical materials. Some polymers are employed in biomedical applications, for example, sulfopolymers as biomembranes and blood-compatible materials, and polysulfates and polysulfonates as antithrombotic or antiviral agents. The presence of sulfur, particularly in the form of disulfide bridges, plays an important role in biopolymers.The purpose of this review is mainly to present recent advances in the area of sulfur-containing polymers that may not yet have commercial applications. Nevertheless, older but still significant material has been included at the beginning of the discussion of each class. Poly(monosulfide)sPolymers containing a monosulfide linkage in both the main chain and the pendent group are the subject of many detailed studies. A few reviews of the synthesis and properties of all types of polymers have been published (1-4); like the one covering polymer with sulfur in the main chain that appeared in 1992 (3). Polysulfides with controlled and well-defined structures can be easily prepared. Nevertheless, the only commercial poly(monosulfide) is Ryton [Philips Petroleum Co., poly(thio-1,4-phenylene) more frequently referred to as poly(p-phenylene sulfide) or poly(phenylene sulfide) (PPS)].

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Section: Polyesters Containing Sulfur Linkagesmentioning

confidence: 95%

Sulfur‐Containing Polymers

Kultys

2010

Encyclopedia of Polymer Science and Technology

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“…This type of polyesters are produced by from sulfonic diols with sulfure in the main chain with aliphatic diacidchlorides possessing methylene groups from 2 to 10 groups (Hirano, 2004). They have high molecular weight and crystalline structure and also high thermo resistance (Scheme 9).…”

Section: Polyester With Sulfur In the Main Chainmentioning

confidence: 99%

Synthesis of Thermally Stable Polyesters

Mighani¹

2012

Polyester

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“…The modifiers, the TDP_7 polyester and the MPS_ x polythioesters with a diphenylsulfide moiety, were synthesized according to our previous reports (Scheme ) 10–12. Majority of the terminal carboxyl group of the MPS polythioesters would be converted to methyl esters by use of dried methanol at the termination of polycondensation, so as to reduce the reaction of the remaining terminal carboxyl group with an oxirane ring of diglycidyl ether of bisphenol‐A (DGEBA) on curing.…”

Section: Experimental Partmentioning

confidence: 99%

Enhancement of Epoxy Resin/Copper Heterojunction by Introduction of Sulfur‐Containing Polymers

Honda

Okada

Nakamura

et al. 2006

Macro Materials & Eng

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Summary: Epoxy resins are widely used in electronics and electric industries because of their superior properties. In recent years, excellent bonding properties for metals (e.g., copper, gold, aluminium, silver, etc.), to which it is hard to adhere, have become desirable for epoxy resins in the electric and electronics industrial fields. However, epoxy resins have only poor bonding strength to the metals. In order to increase the heterojunction strength between epoxy resins and copper, the introduction of sulfur, providing strong interactions with metals, was investigated. TDP polyester and MPS polythioesters containing sulfur moieties were employed as the sulfur‐containing modifiers for the epoxy resin. Epoxy resins containing a modifier (5–20 phr) and a curing agent were cured between copper plates at 120 °C for 2 h and at 170 °C for 2 h. The effect of the added modifiers was evaluated by the lap‐shear testing method. It could be demonstrated that MPS polythioesters have a beneficial effect on the enhancement of the epoxy resin/copper heterojunction. The most effective example was the addition of 20 phr of the MPS_7 polythioester, which increased the lap shear strength from 5.7 to 17 MPa.Improvement of lap shear strengths of adhesive copper joints by sulfur‐containing modifiers.magnified imageImprovement of lap shear strengths of adhesive copper joints by sulfur‐containing modifiers.

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Linear polymers with sulfur in the main chain. II. Synthesis of polyesters by interfacial polycondensation of bis(4,4′‐hydroxyphenyl)sulfide with several aliphatic acid dichlorides and their properties

Cited by 18 publications

References 14 publications

Sulfur‐Containing Polymers

Sulfur‐Containing Polymers

Synthesis of Thermally Stable Polyesters

Enhancement of Epoxy Resin/Copper Heterojunction by Introduction of Sulfur‐Containing Polymers

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