Influence of Isosorbide on Glass‐Transition Temperature and Crystallinity of Poly(butylene terephthalate)

Kricheldorf, Hans R.; Behnken, Gesa; Sell, M.

doi:10.1080/10601320701351128

Cited by 80 publications

(97 citation statements)

References 20 publications

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“…Anhydrous sugar alcohols, such as isosorbide, are known for their uses in therapeutics, food additives, surfactants and more recently in polyesters [1][2][3] and polyethers [4]. Incorporation of isosorbide into known polymers may be of interest for three reasons [2].…”

Section: Introductionmentioning

confidence: 99%

“…Incorporation of isosorbide into known polymers may be of interest for three reasons [2]. Firstly, isosorbide introduces chiral centers as an effect, which is particularly interesting for the preparation of cholesteric materials.…”

Section: Introductionmentioning

confidence: 99%

“…(1) (2) Examples of acid catalysts used commercially include mineral acids such as H 2 SO 4 [6], HCl and H 3 PO 4 [7], but the use of a homogeneous acidic catalyst introduces some processing issues such as a corrosion hazard for the reactors, and difficulties in product separation and recovery [8]. Environmental considerations and handling difficulties have led to sustained efforts in recent years to replace homogeneous acid catalysts with solid acid catalysts.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

Sun

et al. 2010

Korean J. Chem. Eng.

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Tungstophosphoric acids (PW) supported on various metal oxides (SiO 2 , γ-Al 2 O 3 , TiO 2 , ZrO 2 and CeO 2 ) were synthesized and used as catalysts for sorbitol dehydration to isosorbide for the first time. 30% PW/SiO 2 exhibited the best catalytic performance for sorbitol dehydration, over which 56% isosorbide selectivity could be gained at a 95% sorbitol conversion at 250 o C. The catalytic performance of regenerated 30% PW/SiO 2 catalysts by dichloromethane elution showed no loss after recycling five runs. Characterizations with UV-Vis, XRD, NH 3 -TPD and thermal analysis techniques revealed that PW had a good dispersion, and the primary Keggin structure was preserved after supporting PW on different supports. The interaction between PW and oxides resulted in different acidity of catalysts, which affected conversion of sorbitol and selectivity for isosorbide. The final acidity order of supported PW catalysts was the following: SiO 2 >γ-Al 2 O 3 >TiO 2 ≈ZrO 2 >CeO 2 .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

Sun

et al. 2010

Korean J. Chem. Eng.

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“…Despite the apparent advantages of incorporating rigid monomers such as isohexides into the polymer it is known that, under conventional melt polymerization conditions, the secondary hydroxyl groups of 1,4:3,6-dianhydrohexitols display reduced reactivity hampering so far the large scale industrial applications in the polymer field. 14,15 The synthesis of more reactive isohexide derivatives such as amines 11,16 or isocyanates 17,18 has been considered as an alternative strategy for the incorporation of the isohexide monomers into polycondensation polymers. Recently, a 1-carbon extended isohexide derivative with methyl ester functionality, namely isoidide dimethyl ester (IIDMC), has been reported as a comonomer for the synthesis of sugar-based polyesters with enhanced Tg.…”

Section: Introductionmentioning

confidence: 99%

Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced T_g

et al. 2016

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Sugar-based polyesters derived from sorbitol and isohexides were obtained via solvent-free enzymatic catalysis. Pendant hydroxyl groups, coming from the sorbitol units, were present along the polyester backbone, whereas the two isohexides, namely, isomannide and isoidide dimethyl ester monomers, were selected to introduce rigidity into the polyester chains. The feasibility of incorporating isomannide as a diol compared to the isoidide dimethyl ester as acyl-donor via lipase-catalyzed polycondensation was investigated. The presence of bicyclic units resulted in enhanced T g with respect to the parent sorbitol-containing polyester lacking isohexides. The different capability of the two isohexides to boost the thermal properties confirmed the more flexible character provided by the isoidide diester derivative. Solvent-borne coatings were prepared by cross-linking the sugar-based polyester polyols with polyisocyanates. The increased rigidity of the obtained sugar-based polyester polyols led to an enhancement in hardness of the resulting coatings.

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“…In special, the inclusion of small quantities of isosorbide into aromatic polyesters affords polymers with higher T g , opening new windows of applications for these materials. 8,9 Copolymers can be synthesized through various synthetic routes. Depending on the synthetic method Vol.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and structural characterization of block and random low molecular weight copolymers composed of L-lactic acid and isosorbide succinate moieties

Casarano

Petri

Jaffé³

et al. 2009

J. Braz. Chem. Soc.

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Resíduos de succinato de isosorbídeo foram incorporados na cadeia principal de poli(L-lactídeo) (PLLA) visando a obtenção de uma nova classe de polímeros biodegradáveis com propriedades melhoradas. Este artigo descreve a síntese e caracterização de quatro tipos de copolímeros de baixa massa molar. O copolímero I foi obtido da mistura dos monômeros L-lactídeo, isosorbídeo e anidrido succínico; II do oligo(L-lactídeo) (PLLA), isosorbídeo e anidrido succínico; III do oligo(succinato de isosorbídeo) (PIS) e L-lactídeo; e IV de reações de transesterificação entre PLLA e PIS. Análises de MALDI-TOFMS e 13 C-NMR apresentaram evidências de que cooligomerização foi alcançada em todos os casos. Os dados sugerem que o produto I é um cooligômero aleatório e que os produtos II-IV são cooligômeros em bloco.Isosorbide succinate moieties were incorporated into poly(L-lactide) (PLLA) backbone in order to obtain a new class of biodegradable polymer with enhanced properties. This paper describes the synthesis and characterization of four types of low molecular weight copolymers. Copolymer I was obtained from monomer mixtures of L-lactide, isosorbide, and succinic anhydride; II from oligo(L-lactide) (PLLA), isosorbide, and succinic anhydride; III from oligo(isosorbide succinate) (PIS) and L-lactide; and IV from transesterification reactions between PLLA and PIS. MALDI-TOFMS and 13 C-NMR analyses gave evidence that co-oligomerization was successfully attained in all cases. The data suggested that the product I is a random co-oligomer and the products II-IV are block co-oligomers.

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Influence of Isosorbide on Glass‐Transition Temperature and Crystallinity of Poly(butylene terephthalate)

Cited by 80 publications

References 20 publications

H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced T_g

Synthesis and structural characterization of block and random low molecular weight copolymers composed of L-lactic acid and isosorbide succinate moieties

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Influence of Isosorbide on Glass‐Transition Temperature and Crystallinity of Poly(butylene terephthalate)

Cited by 80 publications

References 20 publications

H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

H3PW12O40/SiO2 for sorbitol dehydration to isosorbide: High efficient and reusable solid acid catalyst

Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced Tg

Synthesis and structural characterization of block and random low molecular weight copolymers composed of L-lactic acid and isosorbide succinate moieties

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Product

Resources

About

Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced T_g