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average sequence length
相关语句
  平均序列长度
     The copolymers exhibit a good symmetric peak in GPC chromatograph with the number average molecular weight more than 3.5×10 4 and polydispersity less than 1.70. Sequence distribution analysis reveals that the average sequence length of hard segment PBT decreases from 4 02 to 1 41, while that of PCT increases from 1 17 to 2 50 with the increase of x__ PCT. The random distribution of the two hard segments is also confirmed in the same way.
     GPC分析显示 ,共聚物分子量均具有较为对称的单峰分布 ,多分散性指数低于 1 .70 .1 3C NMR谱结果表明 ,随 PCT摩尔分数 ( x PCT)从 1 0 %增至 60 % ,PBT平均序列长度由 4.0 2降到 1 .41 ;
短句来源
     And the variation of average sequence length and the co-crystallization of two hard segments should be responsible for the minimum of melting point and crystallinity of hard segments at x__ PCT being equal to about 20%.
     受硬段平均序列长度及结晶能力影响 ,硬段熔点及结晶度在 x PCT为 2 0 %~ 3 0 %处均达到最小值 ,可能是硬段间形成共晶所致 .
短句来源
     the average sequence length of hydrophobes, N_H, and the Huggins constant, K_H, decrease with increasing SMR and K_H becomes close to K_H for HPAM at SMR=100.0. The viscosity-concentration curves for TCPs solutions in brine shift in direction of increasing concentration (0.5-5.5 g/L) and decreasing SMR value.
     疏水单元平均序列长度NH 和Huggins常数KH 随SMR增大而减小 ,SMR =10 0 .0时KH 趋近HPAM的值。 浓度 0 .5~ 5 .5 g/L范围的共聚物标准盐水溶液粘度曲线 ,随SMR增大移向高浓度低粘度方向。
短句来源
     The average sequence length of hard segment PBT decreases as the increase of the molar fraction of PCT, while that of PCT decreases. And the two hard segments distribute randomly along the polymer chain.
     结构中两种硬段呈无规分布,Mn(PEG)一定,随MPCT增加,PBT平均序列长度减小,而PCT平均序列长度增加。
短句来源
  序列的平均长度
     Copolymerization at 160℃,the average sequence length of glycolidyl (l GG) of the copolymers increased as the feed mole fraction of GA increased and the average sequence length of lactidyl(l LL) decreased.
     当聚合温度为 16 0℃时 , GG 序列的平均长度 (lGG)随GA摩尔投料比增大而增长 ,而 LL 序列的平均长度 (lLL)则相反 .
短句来源
  “average sequence length”译为未确定词的双语例句
     Two elastomers have been prepared by gas copolymerization of ethylene and 1 butene with new highly active catalyst TiCl 4, Ti(OBu) 4/MgCl 2, SiO 2, ZnCl 2/alcohol/AlR 3. Triad sequence and comonomer distributions, average sequence length, run numbers are determined using 13 C NMR.
     用新型催化体系 Ti Cl4,Ti( OBu) 4/Mg Cl2 ,Si O2 和 Zn Cl2 /醇 /Al R3催化乙烯与 1 -丁烯气相均聚及共聚 ,制得两种共聚物弹性体 ,发现新型催化剂体系具有独特的齐聚和原位共聚性能 .
短句来源
     1H NMR results and solubility tests indicated that the comonomers were basically randomly distributed in the copolymer chains, and the average sequence length of glycolide was in the range of 1.3 to 1.8, depending on the feed ratio of the comonomers.
     1H NMR和溶解试验结果表明,共聚物中各链段呈无规分布,GA序列长度在1.3~1.8之间。
短句来源
     By Fineman-Ross equation,reactivity ratios of DCPD and MA monomers were estimated:r_ MA=0.006 4 and r_ DCPD=0.676 0.Both segmer sequence distribution and average sequence length of DCPD-MA copolymer were investigated as well.
     采用Fineman-Ross法测定单体的竞聚率(r),rMA=0.0064,rDCPD=0.6760。 研究了共聚物中DCPD与MA单元的链段序列分布。
短句来源
     The microstrcture of the copolymer were analyzed by means of 13C-NMR spectra. It was found that the average sequence length of 1-hexene was approximately one,and the copolymer was random.
     6.乙烯/1-己烯共聚物~(13)C-NMR测试结果表明,共聚单体1-己烯无规分布在聚乙烯序列之中,得到的共聚物为无规共聚物。
短句来源
     The parameters of substituent chemical shift (SCS)of EPO are obtained from the (13)~C spectra. The relationship among the (13)~C spectra, SCS parameters and sequence structure of EPO are revealed clearly. According to this relationship, the sequence distribution and number average sequence length of ethylene oxide and propylene oxide segments are calculated.
     并从序列结构随环氧丙烷(PO)含量的改变,分析了EPO的二元组序列和三元组序列结构,从~(13)C实验谱中归纳出EPO的取代基参数(SCS),清楚地揭示了EPO的~(13)C谱,SCS参数和序列结构之间的关系,在此基础上计算了EPO系列共聚物的序列分布和数均序列长度。
短句来源
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  相似匹配句对
     The sequence average length of different kingdoms were:bacteria,609.79832;
     不同界α-淀粉酶的平均长度是:细菌, 609.79832;
短句来源
     sequence.
     序列的情形作了相应的推广
短句来源
     in average;
     平均为0.89d。
短句来源
     Certain sequence and length from the rhythm.
     从节奏中去确定顺序和长度。
短句来源
     The dyad distribution and number-average sequence length of these copolymers were quantitatively determined.
     定量地求得丁-戊共聚物二元组分布及数均序列长度数据。
短句来源
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  average sequence length
As the molar content of PTMEG increases, the average sequence length of the polyester segments decreases, the isotropic-smectic transition temperature and the smectic order decrease accordingly.
      
End-sequencing of 480 individual clones generated 828 sequences after trimming, with an average sequence length of 624?bp.
      
1H NMR results indicate that both the number average sequence length of PET and PHB segments (LPET and LPHB) decrease with increasing mixing time and temperature via transesterification between PET and LCP.
      
Addition of PES causes an increase in the average sequence length of ethylene and propylene.
      
An estimated penicillin monomer's number-average sequence length in the copolymer was 2.7.
      
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The'H-NMRand~(13)C-NMR Spectra of the Vinyl Chloride (A)-β-hydoxy Propyl acrylate (B)binary Copolymer were detemined-and assigned.The Copolymer Composition Were Calculated by its ~1H-NMR Spectrum the ratio betwern the two isomers Presentin B of the Copolymer Was Calculated by the Peak area ratios of-CH_3 in the ~(13)C-NMR,The run number sequnce distribution R and the number-average sequence lengths nA, nB Were Calculated by the~(13)C-NMR Specfrum.It is Pointed Out that this binary Copolymer is a random...

The'H-NMRand~(13)C-NMR Spectra of the Vinyl Chloride (A)-β-hydoxy Propyl acrylate (B)binary Copolymer were detemined-and assigned.The Copolymer Composition Were Calculated by its ~1H-NMR Spectrum the ratio betwern the two isomers Presentin B of the Copolymer Was Calculated by the Peak area ratios of-CH_3 in the ~(13)C-NMR,The run number sequnce distribution R and the number-average sequence lengths nA, nB Were Calculated by the~(13)C-NMR Specfrum.It is Pointed Out that this binary Copolymer is a random Polymer

测试了氯乙烯(A)-β-丙烯酸羟丙酯(B)二元共聚物的~1H—NMR谱图和~(13)C-NMR谱图,并对两种图谱进行了归属。利用它的~1H—NMR谱图计算了二元共聚物的组成;利用它的~(13)C—NMR谱图中两个-CH_3峰的面积比计算了β-丙烯酸羟丙酯中两个异构体参加共聚的比例,得出两种异构体的反应活性是不同的;还利用~(13)C—NMR谱图计算了该共聚物的链区交替数目R及数均长度nA和nB,指出该二元共聚物为嵌段型的无规共聚物。

Monomer sequence distribution of copolymers of butadiene and isoprene prepared with lanthanide complexes LaCl2-C2H5OH-Al(C2H5)2 was determined by 13C-NMR spec-trometry.The dyad distribution and number-average sequence length of these copolymers were quantitatively determined. The results show that sequence distribution of monomer units in copolymers prepared with Nd, Pr and Ce catalysts follow Bernoullian statistical model, while copolymers prepared with Y, Sm, Dy and Gd catalysts show some deviation...

Monomer sequence distribution of copolymers of butadiene and isoprene prepared with lanthanide complexes LaCl2-C2H5OH-Al(C2H5)2 was determined by 13C-NMR spec-trometry.The dyad distribution and number-average sequence length of these copolymers were quantitatively determined. The results show that sequence distribution of monomer units in copolymers prepared with Nd, Pr and Ce catalysts follow Bernoullian statistical model, while copolymers prepared with Y, Sm, Dy and Gd catalysts show some deviation from it.

用~(13)C-NMR方法研究了不同稀土元素聚合丁二烯-异戊二烯共聚物的序列分布。定量地求得丁-戊共聚物二元组分布及数均序列长度数据。证明以Nd、Pr及Ce为催化剂的共聚物分布较好地服从Bernoullian模型,以Y、Sm、Dy及Gd为催化剂的共聚物与Bernoullian分布有些偏离。

High resolution NMR spectra of several kinds of Polysulfone-Polyesters(PSF-PPT, PSF-PBT, PSF-PHT, PSF-PDET, PSF-PTET) block copolymers were measured.The composition and sequence distribution of Polysulfonc-Polyesters block copolymers were studied. Proton signals due to helerolinkages could be observed in these block copolymers, and the average sequence length (L) and the degree of Randomness (B) in the Polysulfone-Polyesters block copolymers were calculated from the intensities of their signals.B of block...

High resolution NMR spectra of several kinds of Polysulfone-Polyesters(PSF-PPT, PSF-PBT, PSF-PHT, PSF-PDET, PSF-PTET) block copolymers were measured.The composition and sequence distribution of Polysulfonc-Polyesters block copolymers were studied. Proton signals due to helerolinkages could be observed in these block copolymers, and the average sequence length (L) and the degree of Randomness (B) in the Polysulfone-Polyesters block copolymers were calculated from the intensities of their signals.B of block copolymers lie in the region of 0average block length (L) in block copolymers. were relatively dependent on the reaction conditions, mixing sequence of the reactants, various feed ratios and structure of diols.

本文测定了一系列聚矾-聚酯嵌段共聚物的高分辨核磁共振谱,研究了共聚物的组成和序列分布,山~1H NMR谱图的峰面积算出了共聚物的无规度(B)及数均序列长度(L),B值均在O

 
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