A novel aromatic triamide 1,3,5-tri[4-(4-aminophenoxy)phenyl] benzene (TAPOPB) with prolonged chain segments and ether bonds was successfully prepared through a three-step reaction. Then a series of hyperbranched polyimides (HBPIs) were synthesized using A2 + B3 polycondensation from various commercial aromatic dianhydrides and TAPOPB. The HBPIs showed good solubility, thermal stability with glass transition temperatures (Tg) between 218°C and 320°C, and temperature at 10% weight loss of 502.1–561.7°C in nitrogen atmosphere. Meanwhile, they had decent mechanical properties whose tensile strength and modulus were higher than 72.37 MPa and 1.039 GPa, respectively. Water uptake of less than 0.96% was obtained. The truncation wavelengths of the films were all greater than 400 nm with a good application prospect in UV protective coating. Most contact angles were more than 90°, promising to be used as hydrophobic material.
VoitBILedererA. Hyperbranched and highly branched polymer architectures –synthetic strategies and major characterization aspects. Chem Rev2009; 109: 5924–5973.
5.
KozlowskaMKJurgensBFSchachtCS. Phase behavior of hyperbranched polymer systems: experiments and application of the perturbed-chain polar SAFT equation of state. J Phys Chem B2009; 113: 1022–1129.
6.
HiraoAWatanabeTIshizuK. Precise synthesis and characterization of fourth-generation dendrimer-like star-branched poly(methyl methacrylate)s and block copolymers by iterative methodology based on living anionic polymerization. Macromolecules2009; 42: 682–693.
7.
ChenHYinJ. Synthesis and characterization of hyperbranched polyimides with good organosolubility and thermal properties based on a new triamine and conventional dianhydrides. J Polym Sci Polym Chem2002; 40: 3804–3814.
8.
CabanetosCBlartEPellegrinY. Synthesis and second-order nonlinear optical properties of a crosslinkable functionalized hyperbranched polymer. Eur Polym J2012; 48: 116–126.
9.
YamanakaKJikeiMKakimotoM. Preparation of hyperbranched aromatic polyimide without linear units by end-capping reaction. Macromolecules2001; 34: 3910–3915.
10.
FangJHKitaHOkamotoK. Hyperbranched polyimides for gas separation applications. 1. synthesis and characterization. Macromolecules2000; 33: 4639–4646.
11.
VoitB. New developments in hyperbranched polymers. J Polym Sci Polym Chem2000; 38: 2505–2525.
12.
InoueK. Functional dendrimers, hyperbranched and star polymers. Prog Polym Sci2000; 25: 453–471.
WangLJinSLWangNX. One-step self-assembly fabrication of amphiphilic hyperbranched polymer composite membrane from aqueous emulsion for dye desalination. J Membrane Sci2014; 452: 143–151.
16.
ZhaoLYaoHYLiuY. Synthesis and properties of novel hyperbranched polyimides end-capped with metallophthalocyanines. J Appl Polym Sci2013; 128: 3405–3410.
17.
SeyedjamaliHPirisedighA. Synthesis and morphology of new functional polyimide/titania nano hybrid materials. J Mater Sci2011; 46: 6744–6750.
18.
HuBLWeiHBHanY. Low dielectric constant and organosolubility of polyimides derived from unsymmetric phthalic-thioether-naphthalic dianhydrides. J Mater Sci2011; 46: 1512–1522.
19.
ChungCLLeeWFLinCh. Highly soluble fluorinated polyimides based on an asymmetric bis(ether amine): 1,7-bis(4-amino-2-trifluoromethylphe noxy)naphthalene. J Polym Sci Pol Chem2009; 47: 1756–1770.
20.
DüsselbergDVerreaultDKoelschP. Synthesis and characterization of novel, soluble sulfur-containing copolyimides with high refractive indices. J Mater Sci2011; 46: 4872–4879.
21.
XiaoYCLowBTHosseiniSS. The strategies of molecular architecture and modification of polyimide-based membranes for CO2 removal from natural gas: a review. Prog Polym Sci2009; 34: 561–580.
ZhangAQLiXDNahCW. Facile modifications of a polyimide via chloromethylation.I. novel synthesis of a new photosensitive polyimide. J Polym Sci Polym Chem2003; 41: 22–29.
YeYSHuangYJChengCC. A new supramolecular sulfonated polyimide for use in proton exchange membranes for fuel cells. Chem Commun2010; 46: 7554–7556.
27.
ShenJZhangYChenWQ. Synthesis and properties of hyperbranched polyimides derived from novel triamine with prolonged chain segments. J Polym Sci Polym Chem2013; 51: 2425–2437.
28.
PeterJKhalyavinaAKrízJ. Synthesis and gas transport properties of ODPA–TAP–ODA hyperbranched polyimides with various comonomer ratios. Euro Polym J2009; 45: 1716–1727.
29.
SimYHWangHLiFY. High performance carbon molecular sieve membranes derived from hyperbranched polyimide precursors for improved gas separation applications. Carbon2013; 53: 101–111.
30.
SuzukiTYamadaY. Effect of thermal treatment on gas transport properties of hyperbranched polyimide–silica hybrid membranes. J Membrane Sci2012; 417–418: 193–200.
31.
PeterJKosmalaBBlehaM. Synthesis of hyperbranched copolyimides and their application as selective layers in composite membranes. Desalination2009; 245: 516–526.
32.
SuzukiTMikiMYamadaY. Gas transport properties of hyperbranched polyimide/hydroxy polyimide blend membranes. Eur Polym J2012; 48: 1504–1512.
33.
CaoZJJinLLiuY. Crosslinkable fluorinated hyperbranched polyimide for thermo-optic switches with high thermal stability. J Appl Polym Sci2013; 12: 7607–7611.
XiaoYCChungTSChngML. Surface characterization, modification chemistry, and separation performance of polyimide and polyamidoamine dendrimer composite films. Langmuir2004; 20: 8230–8238.
36.
GuoZGLiuWM. Progress in biomimicing of super-hydrophobic surface. Prog Chem2006; 18: 721–726.
37.
ChenYZhangQYSunWL. Synthesis, characterization and properties of TAP-6FDA hyperbranched polyimides with different branching degrees. Polym Int2014; 63: 788–795.
38.
HaoJJJikeiMKakimotoM. Preparation of hyperbranched aromatic polyimides via A2 + B3 approach. Macromolecules2002; 35: 5372–5381.
39.
ElmersySSPelterASmithK. The direct production of tri- and hexa-substituted benzenes from ketones under mild conditions. Tetrahedron Lett1991; 32: 4175–4176.
40.
PanYZXuYAnL. Hybrid network structure and mechanical properties of rodlike silicate/cyanate ester nanocomposites. Macromolecules2008; 41: 9245–9258.
