欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了改善聚酰亚胺的不溶不熔性，一类可溶性苯并噁唑侧基聚酰亚胺树脂被成功制备．从合成的新型二元胺单体出发，制备了侧链为邻羟基苯胺酰胺结构的聚酰亚胺体系，进一步催化环化邻羟基苯胺酰胺为苯并噁唑结构，并对这两类不同结构的聚合物树脂进行了红外光谱的结构表征，以及最终成膜的力学性能和耐热性能测试．研究结果表明：苯并噁唑侧基聚酰亚胺的力学性能优于相应的主链型聚酰亚胺，且TGA分析表明，其初始分解温度高达597℃，有望用于航空航天方面高强、高模、耐高温的结构材料．
英文摘要：
A novel diamine monomer 3,5-diaminobenzoic-4＇-（o-hydroxy） aniline acylamide has been synthesized, and a new polyimide （PI） containing pendent benzoxazoline group was synthesized from this diamine, 3,3＇,4,4＇-oxydiphthalic dianhydride （ODPA） and bis（4-aminophenyl）ether （ODA） by a one-step high- temperature polycondensation with a certain catalyzer in 1-methyl-2-pyrrolidinone （NMP）. This PI is soluble in NMP. At the same time, mechanical and thermally stable properties of the PI film were investigated. The excellent mechanical properties of general polyimide films are reasonably maintained, and the polyimide film with pendent groups showes higher tensile strength （158 MPa） and modulus （2.4 GPa）. TGA study showes a typical two-step weight loss behavior corresponding to the pyrolysis of pendent groups and main chains of the PI with （o-hydroxy）-anilide, respectively. Moreover, the PI with benzoxazoline side groups has one-step weight loss behavior, and an initial decomposition temperature near 597 ℃ was obtained.
同期刊论文项目
同项目期刊论文
Preparation of PVDF/PMMA blend microporous membranes for lithium ion batteries via thermally induced
Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG fo
Preparation of PVDF/PEO-PPO-PEO blend microporous membranes for lithiumion batteries via thermally i
Fabrication?and?characterization?of?a?novel?TiO2?nanoparticle?self-assembly?membrane?with?improved?f
Preparation and characterization of PVDF-HFP microporous flat membranes by supercritical CO2 induced
Porous membranes modified by hyperbranched polymers 1. Preparation and characterization of PVDF memb
Improving hydrophilicity and protein resistance of PVDF membrane by blending with amphiphilic hyperb
Effect of the casting solvent on the crystal characteristics and pervaporative separation performanc
PVDF porous matrix with controlled microstructure prepared by TIPS process as polymer electrolyte fo
Study on the relationship of chemical structure and order aggregation ability of polyimides: A molec
Polymorphism in porous poly(vinylidene fluoride) membranes formed via immersion precipitation proces
Synthesis, characterization, and crystallization of thermoplastic aromatic semi-crystalline homopoly
Structure and ionic conductivity of porous polymer electrolytes based on PVDF-HFP copolymer membrane
Synthesis and Characterization of Novel Polyimides with Aromatic Ester Side Chain End-Capped by Meth
Improving the hydrophilicity of poly(vinylidene fluoride) porous membranes by electron beam initiate
The effects of quenching on the phase structure of vinylidene fluoride segments in PVDF-HFP copolyme
Grafting of styrene/maleic anhydride copolymer onto PVDF membrane by supercritical carbon dioxide: p
Porous membranes modified by hyperbranched polymers 2.effect of the arm length of amphiphilic hyperb
Structure Formation and Characterization of PVDF Hollow Fiber Membranes by Melt-Spinning and Stretch
Stretching Induced Steric Interaction between Backbone and Side chain in a Novel Polyimide Fiber Con
Effects of Catalyst Isoquinoline in Polymerization Process on the Aggregation Structures of Polyimid
A Novel Aromatic Polyimide with Rigid Biphenyl Side-groups: Formation and Evolution of Structures in
Preparation of PVDF porous membrane via thermally induced phase separation with diluent mixture of D
Effect of chemical interaction on morphology and mechanical properties of CPI-OH/SiO2 hybrid films w
Comparative study on morphology and properties of polyimide/silica hybrid films derived from differe
The Study on imidization degree of polyamic acid in solution and ordering degree of its polyimide fi
P(VDF-co-HFP) membrane for recovery of aroma compounds from aqueous solutions by pervaporation (. Et
A?facile?method?of?surface?modification?for?hydrophobic?polymer?membranes?based?on?the?adhesive?beha
Effect?of?Side?Chain?Structure?of?Polyimide?on?Pretilt?Angle?of?LiquidCrystal?Cell:?Experimental?and
Nonisothermal crystallization kinetics of poly(vinylidenefluoride) in a poly(vinylidene fluoride)/di
Structure formation and characterization of PVDF hollow fiber membrane prepared via TIPS with diluen
Preparation of poly(vinylidene fluoride) hollow fiber membrane via thermally induced phase separatio
Surface immobilization of polymer brushes onto porous poly(vinylidene fluoride) membrane by electron
Synthesis of novel polyimides with (tert-butyldimethylsiloxy)biphenyloxy
groups and the effect of si
Influence of alcohol-based nonsolvents on the formation and morphology of PVDF membranes in phase in
Synthesis of an Amphiphilic Glucose-Carrying Graft Copolymer and Its Use for Membrane Surface Modifi
Introduction of side chains containing biphenyl unit on the crystalline morphology and properties of
Novel aromatic polyimide fiber with biphenyl side-groups: Dope synthesis and filament internal morph
期刊信息
位置：