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Synthesis, Characterization and Properties of Poly(aryl amides) Containing Methoxy Substituted Phthalazinone Moiety

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Chinese Chemical Letters 2005年第10期16卷 1324-1326页

作者： Pei WANG jian Dong LIU xi gao jian Department of Polymer Science ＆ Materials Dalian University of Technology Dalian 116012

A novel aromatic diamine, 1, 2-dihydro-2-（4-aminophenyl）-4-[3-methoxy-4-（4-aminophenoxy）]-2, 3-phthalazin-l-one （OO-DA） containing aza heterocyclic structure was synthesized from the bisphenol-like monomer in two steps and used for preparing new aromatic polyamides with high inherent viscosity of 0.89-1.03 dL.g^-1. The structures of diamine and polymers obtained were confirmed by MS, PT-IR, WAXD and ^1H-NMR. The synthesized polymers exhibited high glass transition temperature in the range of 281-307℃ and good solubility in polar solvents.

关键词： Poly(ether amides) phthalazinone solubility.

Pretreatment of Polymer-Supported Pd-Co and Its Catalytic Activity

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Chinese Chemical Letters 2000年第8期11卷 743-744页

作者： Yan gao Shi jian LIAO Fu Dong WANG Yue gao xi gao jian Department of Polymer Science&Materials Dalian University of TechnologyDalian 116012 Dalian Institute of Chemical Physics The Chinese Academy of SciencesDalian 116023

Various pretreatments of poly (N-vinyl-2-pyrrolidone) (PVP) protected palladium-cobalt system result in different catalytic activities in the hydrodechlorination of chlorobenzene.

关键词： pretreatment polymer supported Pd-Co catalytic activity

Preparation and Performance of HGM/PPENK-based High Temperature-resistant Thermal Insulating Coatings

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Chinese Journal of Polymer Science 2021年第6期39卷 770-778,I0008页

作者： Lei Song Li-Shuai Zong Jin-Yan Wang xi-gao jian State Key Laboratory of Fine Chemicals Department of Polymer Science and MaterialsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

Novel high temperature-resistant coatings with high mechanical strength and thermal-insulating performance were prepared with poly(ether nitrile ketone)(PPENK)resin as matrix and hollow glass microspheres(HGMs)as thermal-insulating *** corresponding mechanical and thermal-insulating study indicated that the mechanical properties of the coatings decreased with the increase of HGM content,and were improved after surface modification of HGM by KH570 resulting in enhancement of interaction between HGM and PPENK *** thermal conductivity of HGM/PPENK thermal-insulating coating decreased with the increase of HGM content and coating thickness,along with the decrease of the true *** also showed slight increase trend due to HGMs surface *** HGM/PPENK coating filled with modified HGMs showed better thermal resistance than that of unmodified HGM/PPENK *** thermal decomposition temperature at 5%weight loss of the coating containing modified HGMs was 10°C lower than that of pure PPENK,and 40°C higher than that of neat HGM/PPENK *** coating exhibited commendable appearance after 400°C for 30 *** merits of HGM/PPENK-based thermal coatings obviously demonstrated promising prospect in thermal protection fields.

关键词： Coatings Temperature-resistant HGM/PPENK Thermal conductivity Mechanical properties

A novel epoxy methacrylate resin containing phthalazinone moiety for UV coatings

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Chinese Chemical Letters 2007年第5期18卷 598-600页

作者： Yan Kou Jin Yan Wang xi gao jian Department of Polymer Science and Materials Dalian University of TechnologyLiaoning High Performance Resin Engineering Research Center Dalian 116012 China

A novel ohthalazinone modified epoxy acrylate resin for the high temperature resistant ultravioet （UV） curable *** *** methacrylated epoxy resins obtained were utilized to UV radiation curing by taking 2.5% （wt%） of photoinitiator in combination with 20% （wt%） of diluent, and generated the interpenetraring polymer networks. The cured film had good thermal and chemical stability.

关键词： UV curable Epoxy acrylate Phthalazione Crosslinking

Synthesis and characterization of novel poly(aryl ether sulfone ketone)s containing phthalazinone and biphenyl moieties

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Chinese Chemical Letters 2008年第2期19卷 227-229页

作者： Li Hong xiao Cheng Liu xi gao jian Department of Polymer Science ＆ Materials Dalian University of Technology Dalian 116012 China Liaoning High Performance Resin Engineering Research Center Dalian 116012 China

A novel series of poly（aryl ether sulfone ketone）s （PPESKs） containing phthalazinone and biphenyl moieties were prepared by two-step nucleophilic polycondensation reaction. The ^-Mw values of these copolymers were between 38,330 and 67,900. The glass transition temperatures （Tg） and 5% decomposition temperatures were ranged in 253-269 ℃ and 488-500 ℃, respectively, The structures of these copolymers were confirmed by FT-IR and ^1H NMR. Moreover, all the resultant copolymers were amorphous determined by wide angle X-ray diffraction （WAXD）.

关键词： Poly(aryl ether sulfone ketone) Phthalazinone Biphenyl Thermal property Solubility

Synthesis of New Soluble Polyarylates Containing Phthalazinone Moiety

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Chinese Chemical Letters 2006年第1期17卷 140-142页

作者： Yu Rong gao Jin Yan WANG Cheng LIU xi gao jian Department of Polymer Science and Materials Dalian University of Technology Dalian 116012

A novel diacid chloride, 2-（4-chlorocarboxyphenyl）-4-[3,5-dimethyl-4-（4-chlorocarbo-xylphenoxy）phenyl]-2,3-phthalazin-l-one 2, was synthesized and used for the preparation of polyarylates with inherent viscosities of 0.25-0.37 dL·g^-1. The glass transition temperatures of polyarylates were in the range of 217-272℃. The temperatures at 10% weight loss of polyarylates were found to be in the range of 434-464℃ in nitrogen atmosphere and their structure was confirmed by FTIR and IH NMR. The amorphous polyarylates exhibited excellent solubility in a variety of solvents such as NMP, DMAc, DMF and chloroform.

关键词： Polyarylates phthalazinone solubility thermal behavior.

Synthesis, Curing and Properties of Poly(phthalazione ether sulfone ketone) Copolymers Crosslinked by Click Chemistry

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Chinese Journal of Polymer Science 2016年第10期34卷 1208-1219页

作者： qin-zheng he 王锦艳 lei song xi-gao jian Department of Polymer Science & Materials Dalian University of Technology Dalian 116024 China

Functionalized poly（phthalazinone ether sulfone ketone） was synthesized by successive chloromethylation and azidation, followed by curing reaction with the propargyl end-groups of various molecular weight crosslinking agents in the presence of Cu（I） catalyst via the azide-alkyne click reaction. The influences of the chain length of crosslinking agents on the poly（phthalazinone ether sulfone ketone） system were studied. FTIR and DSC tests demonstrated certain crosslinking by azide-alkyne reaction with the formation of triazole ring. DSC results showed that curing temperature shifted to lower temperatures considerably in the presence of Cu（I） catalyst. TGA showed cured polymers were of much higher thermal stability, including higher thermal decomposition temperatures and higher char-yielding properties. After being cured, the polymers became insoluble in organic solvents and the gel fraction of the cured polymers exceeded 71%. Wide-angle X-ray diffraction results indicated there was a short distance order in the poly（ether sulfone）（PES） main chain except for the azido methyl poly（phthalazinone ether sulfone ketone） and 4,4＇-bis（2-propynyloxy） biphenyl （AMPPESK-BP） system.

关键词： Poly(arylene ether sulfone) Crosslinking Click chemistry.

Synthesis and Characterization of Soluble Reactive Copoly (aryl ether ketone ketone)

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Chinese Chemical Letters 2001年第4期12卷 325-326页

作者： Yan gao xi gao jian Zhi Yong XU Yue gao Qian jiang Lü Department of Polymer Science&Materials Dalian University of TechnologyDalian 116012

Soluble reacitve copoly (aryl ether ketone ketone) was synthesized from the condensation of 2.2 ' .3.3 ' .6.6 ' -hexaphenyl-4.4 ' -diphenol. 2.2-p-hydroxyphenl 1-tso-propane. and 1-methyl-cyclohex-1-ene-4.5-diyl-bis) ... 详细信息

关键词： Poly(aryl ether ketone ketone) synthesis solubility.

Synthesis and characterization of trimethoxysilyl-functionalized poly(phthalazinone ether ketone)

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Chinese Chemical Letters 2007年第9期18卷 1137-1140页

作者： Qi Feng Jin Gong xiong Liao xi gao jian Department of Polymer Science & Materials Dalian University of Technology Dalian 116012 China

A novel alkoxysilyl-functionalized poly(phthalazinone ether ketone) (PPEK) was prepared for the boundary lubricant application in micro-electro-mechanical system (MEMS). The synthesis of functionalized PPEK was started from the hydroxylation of PPEK, then following with the corresponding ring-opening reaction of 3-glycidoxypropyltrimethoxysilane (GPTMS). The structures of the functional PPEK were confirmed by FTIR, 1H NMR, 29Si NMR, and UV–vis spectrum.

关键词： Phthalazinone Poly(aryl ether ketone) Glycidoxypropyltrimethoxysilane Synthesis