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新媒体时代传统行业刊物的发展探索 被引量:2
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作者 李瞧 《科技传播》 2017年第16期25-26,共2页
当下,传统行业报正陷入前所未有的困境,传统的内容生产、报纸发行还有广告经营都在遭受着严峻挑战,但这并不意味着所有的行业报刊都终将没落,若能找准定位,充分发挥自身优势,并转变观念,树立产品意识,在插上新媒体的翅膀后,行业报也可... 当下,传统行业报正陷入前所未有的困境,传统的内容生产、报纸发行还有广告经营都在遭受着严峻挑战,但这并不意味着所有的行业报刊都终将没落,若能找准定位,充分发挥自身优势,并转变观念,树立产品意识,在插上新媒体的翅膀后,行业报也可以重新焕发生机和活力。 展开更多
关键词 新媒体 借势 互补互生
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Self-assembly constructed by perylene bisimide derivatives bearing complementary hydrogen-bonding moieties 被引量:2
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作者 杨新国 袁欢 +2 位作者 赵秋丽 杨青 陈宪宏 《Journal of Central South University》 SCIE EI CAS 2009年第2期206-211,共6页
An intermediate compound 2, 4-bis(laurylamino)-6-(1-(2-aminoethyl)-piperazine)-1, 3, 5-triazine was prepared by stepwise nucleophilic substitution on triazine ring by lauryl amine and subsequently 1-(2-aminoet... An intermediate compound 2, 4-bis(laurylamino)-6-(1-(2-aminoethyl)-piperazine)-1, 3, 5-triazine was prepared by stepwise nucleophilic substitution on triazine ring by lauryl amine and subsequently 1-(2-aminoethyl)-piperazine. Then imidization of perylene-3, 4, 9, 10-tetracarboxylic acid dianhydride with 2,4-bis(laurylamino)-6-(1-(2-aminoethyl)-piperazine)-1, 3, 5-triazine was carried out to afford a novel perylene derivative bearing two melamine blocks (S2) and 1, 6, 7, 12-tetra(4-tert-butyl phenoxy)-perylene-3, 4, 9, 10-tetracarboxylic acid bisimide (S1. The hydrogen-bonding interactions between S1 and S2 were investigated by IH NMR spectrum, UV/Vis spectrum and fluorescence spectrum. The influences on the morphologies of S1·S2 aggregates were investigated. The results show that well-defined nanofibers with a diameter of about 100 nm can be obtained by self-assembly between S1 and S2 only in CH2Cl2 solution. Based on these results, guidelines for the molecular design and self-assembly of supramolecular polymer materials are presented. 展开更多
关键词 perylene bisimide SELF-ASSEMBLY HYDROGEN-BONDING synthesis
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