Synthesis and Characterization of Poly(terephthalic acid-2,5-furandicarboxylic acid-1,8-octanediol) Copolyester

2021 ◽  
Vol 36 (4) ◽  
pp. 557-561
Author(s):  
Zhengzai Cheng ◽  
Junpeng Cheng ◽  
Jun Chen ◽  
Jing Xiong ◽  
Xin Sun ◽  
...  
Keyword(s):  
Terephthalic Acid ◽  
Synthesis And Characterization ◽  
Furandicarboxylic Acid

Synthesis and characterization of novel renewable polyesters based on 2,5‐furandicarboxylic acid and 2,3‐butanediol

2012 ◽  
Vol 51 (4) ◽  
pp. 890-898 ◽  
Author(s):  
E. Gubbels ◽  
L. Jasinska‐Walc ◽  
C. E. Koning
Keyword(s):  
Synthesis And Characterization ◽  
Furandicarboxylic Acid

New Wholly-Aromatic Thermotropic Polyesters with Controlled Flexibility

1999 ◽  
Vol 559 ◽  
Author(s):  
Devdatt S. Nagvekar ◽  
Patrick T. Mather ◽  
Hong G. Jeon ◽  
Loon-Seng Tan
Keyword(s):  
Molecular Weight ◽  
Phase Behavior ◽  
Terephthalic Acid ◽  
Synthesis And Characterization ◽  
Quiescent Phase ◽  
Tosyl Chloride ◽  
Melt Spun ◽  
Spun Fibers

ABSTRACTIn this work, we present the synthesis and characterization of a new series of wholly-aromatic copolyesters derived from the condensation of various weight fractions of 4,4'-(o- phenylenedioxy)dibenzoic acid (OPDB) and substituted terephthalic acid (BTA) with 2-phenylhydroquinone (PHQ). The Higashi method, involving tosyl chloride and pyridine as solvent, was employed to yield polymer with significant molecular weight. These polymers are intended to enable accessible clearing transition and to control the balance of stiffness and toughness in melt-spun fibers systematically. We report the synthetic details along with characterization of quiescent phase behavior and morphology.

Synthesis and characterization of boric acid mediated metal-organic frameworks based on trimesic acid and terephthalic acid

2017 ◽  
Vol 1141 ◽  
pp. 261-267 ◽  
Author(s):  
Demet Ozer ◽  
Dursun A. Köse ◽  
Onur Şahin ◽  
Nursen Altuntas Oztas
Keyword(s):  
Boric Acid ◽  
Terephthalic Acid ◽  
Metal Organic Frameworks ◽  
Synthesis And Characterization ◽  
Trimesic Acid ◽  
Metal Organic

Synthesis and characterization of poly(p-phenylene terephthalate) crystals obtained by crystallization during polymerization

1994 ◽  
Vol 6 (1) ◽  
pp. 83-93 ◽  
Author(s):  
Kunio Kimura ◽  
Seiji Endo ◽  
Yasuo Kato ◽  
Yuhiko Yamashita
Keyword(s):  
Molecular Structure ◽  
Single Crystals ◽  
Structural Study ◽  
Terephthalic Acid ◽  
Polymer Chains ◽  
Synthesis And Characterization ◽  
Solution Polymerization ◽  
Different Types ◽  
Polymerization Conditions

Poly(p-phenylene terephthalate) (PPTE) crystals were prepared by hightemperature solution polymerization via three different types of reaction as follows: bimolecular condensation of (1) 1,4-diacetoxybenzene and terephthalic acid and (2) hydroquinone and diphenyl terephthalate and self-condensation of (3) mono(4'-acetoxyphenyl) terephthalate. In spite of the reaction types, needle-like crystals are not obtained as found with poly(oxy-l,4-benzenediylcarbonyl) (POB) whiskers, under polymerization conditions identical with those used to produce POB whiskers. PPTE and POB have similar molecular structure that is, they comprise 1,4-phenylene groups and ester linkages. whereas the morphologies of the crystals obtained are quite different. From the structural study, PPTE crystals are single crystals, and polymer chains align perpendicular to the plane of the sheaf-like or plate-like crystal.

Synthesis and characterization of polymers derived from 2,5-dimethoxy-terephthaldehyde and 2,5-dimethoxy-terephthalic acid

1985 ◽  
Vol 23 (11) ◽  
pp. 2757-2765 ◽  
Author(s):  
F. R. Diaz ◽  
L. H. Tagle ◽  
A. Godoy ◽  
C. Hodgson ◽  
J. P. Olivares
Keyword(s):  
Terephthalic Acid ◽  
Synthesis And Characterization

Synthesis and characterization of novel fluorinated polybenzoxazoles derived from 2,5-difluoroterephthalic acid

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Xiao-Song Huang ◽  
Feng-Ling Qing
Keyword(s):  
Thermal Stability ◽  
Organic Solvents ◽  
Terephthalic Acid ◽  
Polyphosphoric Acid ◽  
Synthesis And Characterization ◽  
One Pot ◽  
Good Solubility ◽  
The One ◽  
Thermal Stability Of

AbstractA new serious of fluorinated polybenzoxazoles (PBOs) were prepared from 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane together with 2,5- difluoroterephthalic acid (DFTA) and terephthalic acid by the one-pot polycondensation in polyphosphoric acid. The resulting PBOs showed good solubility in many common organic solvents and the thermal stability of PBOs was improved by the introduction of DFTA monomer.

Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Copolyesters Nanocomposites Containing POSS

2011 ◽  
Vol 236-238 ◽  
pp. 2028-2031
Author(s):  
Bing Tao Wang ◽  
Yan Zhang ◽  
Zheng Ping Fang
Keyword(s):  
Tensile Strength ◽  
Terephthalic Acid ◽  
Interfacial Adhesion ◽  
Synthesis And Characterization ◽  
Mechanical And Thermal Properties ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Elongation At Break ◽  
The Matrix

Biodegradable aliphatic-aromatic copolyesters/POSS nanocomposites were synthesized via in situ melt copolycondensation of terephthalic acid (TPA), poly(L-lactic acid) oligomer (OLLA), 1,4-butanediol (BDO) and polyhedral oligomeric silsesquioxanes (POSS) reagents (POSS-NH2 and POSS-PEG). The morphologies and dispersions of two POSS reagents in the nanocomposites and their effects on the mechanical and thermal properties were investigated. TEM and XRD characterizations confirmed that POSS-NH2 formed crystalline microaggregates and took poor dispersions in the nanocomposite, while POSS-PEG had better dispersion in the matrix. Due to the good dispersion and interfacial adhesion of POSS-PEG with the copolyester PBTL matrix, the tensile strength and the Young’s modulus greatly increased for PBTL/POSS-PEG nanocomposite. Moreover, compared with POSS-NH2 the existence of POSS-PEG imparted PBTL good flexibility and increased the mobility of the chains, so the glass-transition temperature and the heat of melting as well as the elongation at break were obviously influenced for PBTL/POSS-PEG nanocomposite.

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