During the bleaching process,there was no significant change of lignin structure unit.The carbonyl and quinoid structure had a close relati...

同時(shí)對(duì)不同紙漿在漂白過(guò)程中的變化進(jìn)行了研究，對(duì)影響紙漿白度的因素進(jìn)行了分析

The results indicate that the change of oxidation and doping condition affects the ratio of benzenoid to quinoid ring and the orientation order of the polyaniline chain, which are important factors to decide the conductivity of polyaniline.

這些結(jié)果表明：氧化與摻雜條件的變化影響到聚苯胺中苯環(huán)與醌環(huán)的相對(duì)比例亚洲Aⅴ日韩美欧天堂、聚苯胺鏈的排列有序度国产另类综合欧美第三十页，而這些也是影響聚苯胺電導(dǎo)率的重要因素。

The biosynthesis of coenzyme Q10 in microorganism has two pathways: the quinoid nucleus biosynthesis and the isoprenoid side chain biosynthesis.

輔酶Q10在微生物體內(nèi)的合成分為芳香環(huán)的合成和異戊烯基側(cè)鏈的合成丰满少妇一级毛片无码。

CNTs didn＇t affect the doping degree of PANI, however stabilized the quinoid structure of PANI.

CNTs的加入提高了PANI的電性能特别超碰在线，CNTs含量為12.82％時(shí)，PANI／CNTs復(fù)合材料比純PANI的電導(dǎo)率高9.5倍国内精品视屏。

The results suggested that polys had smaller band gap relative to the their homopolymers, due to the coexistence of aromatic and quinoid form and the lower LUMO energy levels.

結(jié)果顯示相對(duì)於其單聚合高分子，異芳香環(huán)次甲基共軛高分子有較小的能隙是因?yàn)閍romatic 和 quinoid 型態(tài)能夠在共軛鍊上共存欧美日韩一卡，或者是因?yàn)閾碛休^低的LUMO能階所導(dǎo)致超碰在线免费观看97。

CNTs didn't affect the doping degree of PANI,however stabilized the quinoid structure of PANI.

然而CNTs管徑小，長(zhǎng)徑比大超碰0视，易于聚集和纏結(jié)国产精品观看在线亚洲人成网，PANI不熔難溶，難于用常規(guī)的熔融或溶液共混法制備PANI/CNTs復(fù)合材料黃页视频在线观看。

The biosynthesis of the quinoid nucleus are the same in all coenzyme Qs. The biosynthesis of the isoprenoid side chain determine the kind of coenzyme Q.

芳香環(huán)的合成在所有的輔酶Q族物質(zhì)中都是相同的啊啊啊啊欧美国产18，異戊烯基側(cè)鏈的長(zhǎng)度則決定了輔酶Q的種類(lèi)，這里存在一個(gè)關(guān)鍵酶亚洲无码高清四级黄色网，即異戊烯焦磷酸合成酶激情黄色网站专区视频。

This showed that the electron density of a quinoid ring increased. The peaks of the quaternary carbon atoms of the benzene rings, which were adjacent to the quinoid ring, also shifted to higher field. But the peaks of other C atoms shifted to lower field.

NMR結(jié)果表明苯胺低聚體摻雜后主鏈上的電荷重新分布，環(huán)上的H原子上的電子被C原子吸引日韩专区乱伦强奸，電荷密度降低人人操人人摸人人骑，在〓 NMR中譜峰向低場(chǎng)移動(dòng)。C原子的譜峰也相應(yīng)發(fā)生變化国模吧网站，醌環(huán)上電荷密度增加youjizz国产精品，全部C原子的峰向高場(chǎng)移動(dòng)，與醌環(huán)相鄰苯環(huán)受其影響季碳峰移向高場(chǎng)女人十八片，非季碳峰移向低場(chǎng)国内99在线。

It was found that the geometries of the studied materials were significantly affected by the ring size and intramolecular charge transfer. The HOMO level, LUMO level, and band gap of the studied model compounds were well controlled by the acceptor strength. However, the electronic properties of the studied polymer showed a significant different trend with the acceptor strength due to the geometrical transformation. The model compound of EDOT-TP and T-TP has the aromatic geometry but is transformed to the quinoid geometry for large intramolecular charge transfer. The small bond length alternation and large acceptor strength in the EDOT-BDP polymer also results in the smallest Eg of 0.7 eV among the studied polymers.

我們發(fā)現(xiàn)環(huán)的大小以及分子內(nèi)電荷轉(zhuǎn)移對(duì)結(jié)構(gòu)有很大的影響日本黄色视频网址，而小分子的HOMO、LUMO和能隙受到電子受體強(qiáng)度所控制黄色在线观看a偏，然而色就操视频在线，高分子的電子特性與其構(gòu)成分子卻有明顯不同的趨勢(shì)，這主要是由於分子結(jié)構(gòu)的轉(zhuǎn)變免费全网A片，如小分子EDOT-TP以及T-TP因分子內(nèi)電荷轉(zhuǎn)移2021最新国产自产精品，使其高分子結(jié)構(gòu)由aromatic轉(zhuǎn)變成quinoid；而EDOT-BPP因其鍵長(zhǎng)改變量小和良好的電子受體強(qiáng)度亚洲一区二区国产日韩欧美，使其能隙僅0.7個(gè)電子伏特亚洲伊人天堂午夜网站。

Under the influence of an external electric field defined by Sparkles, wecomparatively study the molecular structures and NLO responses of the push-pull thiophene quinoid molecules, push-pull furan quinoid molecules and push-pull pyrrole quinoid molecules. The results make known that the relative size ofthe molecular polarizability values for the three quinoid-type molecules dependson the selection of the donor-acceptor pairs.

比較研究了推-拉噻吩醌型分子、推-拉呋喃醌型分子以及推-拉吡咯醌型分子在點(diǎn)電荷外加電場(chǎng)作用下的分子結(jié)構(gòu)和NLO響應(yīng)亚洲顶级毛片18禁无遮挡，結(jié)果表明：這三種分子超極化率的相對(duì)大小取決于給體-受體對(duì)的選擇爱爱永久网站。