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Photophysics, photochemistry, and optical properties of polyimides
Abstract This review discusses charge transfer (CT) interactions in wholly aromatic polyimides (PI). Discussion was extended to the influence of CT interactions on PI properties, i.e. photophysics,Expand
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Poly(ester imide)s Possessing Low Coef-cient of Thermal Expansion and Low Water Absorption
The film properties of polyimides (PIs) containing para-ester linkages in the main chains, poly(ester imide)s (PEsI) are reported in this paper. An ester-containing dianhydride monomer (TAHQ) wasExpand
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Spontaneous molecular orientation of polyimides induced by thermal imidization (6). Mechanism of negative in-plane CTE generation in non-stretched polyimide films
Abstract The mechanism of negative coefficient of thermal expansion (CTE) generation for non-stretched polyimide (PI) films is proposed in this work. Negative CTE behavior was observed in someExpand
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Molecular Design of Heat Resistant Polyimides Having Excellent Processability and High Glass Transition Temperature
The relationship between the imide structures and morphology are discussed in order to develop heat resistant polyimides having excellent processability and toughness. Addition-type imide oligomersExpand
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Solution-processable transparent polyimides with low coefficients of thermal expansion and self-orientation behavior induced by solution casting
Abstract A fluorinated tetracarboxylic dianhydride (amide-type TA-TFMB) was prepared from trimellitic anhydride chloride and 2,2′-bis(trifluoromethyl)benzidine (TFMB). A chemically imidized polyimideExpand
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Polyimides Containing Trans-1,4-cyclohexane Unit (II). Low-K and Low-CTE Semi- and Wholly Cycloaliphatic Polyimides
Polyimide precursors were successfully polymerized from trans-1,4-cyclohexanediamine (CHDA) with pyromellitic dianhydride (PMDA) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride (CBDA) under veryExpand
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Low-CTE polyimides derived from 2,3,6,7-naphthalenetetracarboxylic dianhydride
2,3,6,7-naphthalenetetracarboxylic dianhydride (NTDA) showed high reactivity in the polymerization of polyimide precursors [poly(amic acid)s (PAAs)] with various aromatic and cycloaliphatic diaminesExpand
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Polyimides Containing Trans-1,4-cyclohexane Unit. Polymerizability of their Precursors and Low-CTE, Low-K and High-Tg Properties
The structure-polymerizability relationship has been investigated in a series of polyimide (PI) precursor, poly(amic acid) systems obtained from trans-1,4-cyclohexanediamine (CHDA) and variousExpand
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Structure and Properties of Novel Asymmetric Biphenyl Type Polyimides
Asymmetric biphenyl type polyimides (PI) were prepared by thermal imidization of polyamic acids (PAA) derived from 2, 3, 3′, 4′- biphenyltetracarboxylic dianhydride (a-BPDA) and p-phenylenediamineExpand
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Microviscosity in water pool of aerosol-OT reversed micelle determined with viscosity-sensitive fluorescence probe, auramine O, and fluorescence depolarization of xanthene dyes
Auramine O (AuO), the fluorescence quantum yield (Φ f ) of which increases with increasing solvent viscosity, was solubilized in Aerosol-OT (AOT) reversed micellar core (water pool) to determine theExpand
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