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阳离子接枝     
相关语句
  cationic graft
     Filler retention respectively in bleached wheat straw pulp increased 23.8%, 22.6% and 14.2% by adding 1% amphoteric starches LS L2 2,0.05% cationic graft corn starch(CGS) and 1% cationic starch (ZJ 4). The results showed that as filler retention aids cationic graft corn starch (CGS) and amphoteric starches were superior to cationic starch.
     分别添加 1%的两性淀粉、0 0 5 %的阳离子接枝淀粉和 1%阳离子淀粉 ,漂白麦草浆的填料留着率分别提高了 2 3 8、2 2 6和 14 2个百分点 ,表明阳离子接枝淀粉和两性淀粉是优于阳离子淀粉的优良助留剂。
短句来源
     Cationic graft copolymerization of α-methylstyrene on lightly chlorinated po-lybutadiene (PB) has been studied with AIEt-2Cl as catalyst and the mixtures oftoluene and CH_2Cl_2 as solvent.
     以A1Et_2Cl作催化剂,二氯甲烷/甲苯为混合溶剂,研究了含氯量较低的氯化聚丁二烯与a-甲基苯乙烯的阳离子接枝共聚反应。
短句来源
     CATIONIC GRAFT COPOLYMERIZATION OF α-METHYLSTYRENE WITH SBS
     SBS阳离子接枝α-甲基苯乙烯共聚合反应
短句来源
     CHARACTERIZATION AND MECHANICAL PROPERTIES OF CATIONIC GRAFT COPOLYMERS OF α-METHYLSTYRENE ON POLYBUTADIENE
     聚丁二烯-α-甲基苯乙烯阳离子接枝共聚物的表征及其力学性能
短句来源
     Cationic graft copolymerization of α-methylstyrene (α-MS) with light chlori-nated SBS was investigated.
     研究了SBS阳离子接枝α-甲基苯乙烯共聚合反应。
短句来源
更多       
  cationic grafting
     Three kinds of mcdification ways on the surface of carbon black by graft polymerization are introduced,which are radical grafting,cationic grafting and anionic graftin.
     综述了用于发黑表面改佐的三种在枝方法:自由基接枝、阳离子接枝、阴离子接枝。
短句来源
     As a result,acid pickling is beneficial to lower the velocity of cationic grafting to ramie and resulting more even distribution of cationic group on ramie fiber.
     试验结果表明,酸洗可以减缓碱改性苎麻阳离子接枝改性的速度,使在苎麻上接枝的阳离子基团分布均匀;
短句来源
  cationic graft copolymerization
     CATIONIC GRAFT COPOLYMERIZATION OF α-METHYLSTYRENE WITH SBS
     SBS阳离子接枝α-甲基苯乙烯共聚合反应
短句来源
     Cationic graft copolymerization of α-methylstyrene on lightly chlorinated po-lybutadiene (PB) has been studied with AIEt-2Cl as catalyst and the mixtures oftoluene and CH_2Cl_2 as solvent.
     以A1Et_2Cl作催化剂,二氯甲烷/甲苯为混合溶剂,研究了含氯量较低的氯化聚丁二烯与a-甲基苯乙烯的阳离子接枝共聚反应。
短句来源
     Cationic graft copolymerization of α-methylstyrene (α-MS) with light chlori-nated SBS was investigated.
     研究了SBS阳离子接枝α-甲基苯乙烯共聚合反应。
短句来源
  “阳离子接枝”译为未确定词的双语例句
     It was discussed that synthesis, properties and application of copolymer (SAM, C-SAM) of acrylamide (Am) and starch (St).
     以丙烯酰胺 (Am)和淀粉 (St)为原料 ,以硝酸铈铵为引发剂 ,在通氮气保护下进行接枝共聚反应 ,得到淀粉丙烯酰胺阳离子接枝共聚物 (简称 SAM) ,聚合中加入一定量的阳离子单体二甲基二烯丙基氯化铵制得另一接枝共聚物 (简称 C- SAM)。
短句来源
     The cationic resin was synthesized through the Mannich reaction of carboxylmethylcellulose(CMC) grafting polyacrylamide and then reacting with methyl iodide to form quaternary ammonium group.
     通过接枝共聚制备羧甲基纤维素接枝聚丙烯酰胺(CMC-g-PAM)树脂,进而通过Mannich反应制备羧甲基纤维素接枝季铵化聚丙烯酰胺阳离子接枝共聚物(CMC-g-CPAM)。
短句来源
     The cationic resin,carboxylmethylcellulose grafting cationic polyacrylamide(CMC-g-CPAM) with quaternary ammonium group,was used as absorbent for removal of hydrosoluble acid dyes.
     采用自制的羧甲基纤维素接枝季铵化聚丙烯酰胺阳离子接枝共聚物(CMC-g-CPAM),运用静态法测定该阳离子接枝共聚物对水溶性酸性染料的吸附脱色性能。
短句来源
     In this paper the meaning of modification of ramie fibre with positive ion and the principle of positive ion grafting have been expounded. It has proved that SA12 as positive ion modifier can improve ramie's dyeability and spinnability effectively by way of the experiment.
     阐述了苎麻纤维阳离子化改性的的意义和阳离子接枝改性的原理,通过实验证明了SA12阳离子改性剂能有效改善苎麻纤维的染色性能和可纺性能。
短句来源
     The effects of macroinitiator, [TiCl_4], the concentration of additives, such as 2-methylpyridine (MPY) and 2,6-di-methylpyridine (DMP), ageing temperature, ageing time, IB concentration, polymerization time on monomer conversion and initiationefficiency of PVAc or its copolymer PVIPA were investigated in detail. The copolymerization product was extracted by methanol and petroleum ether to remove unreacted macroinitiator and polyisobutylene respectively and thus the graft copolymer was obtained.
     分别考察了大分子引发剂用量、亲核试剂如2-甲基吡啶(MPY)和2,6-二甲基吡啶(DMP)的用量、TiCl_4浓度、陈化温度、陈化时间、单体浓度、聚合时间等因素对异丁烯阳离子接枝共聚合的影响。
短句来源
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  cationic graft
Poly(indene-g-isobutylene) was prepared by cationic graft copolymerization of isobutylene from halogenated polyindene.
      
The cationic graft polymerization initiated by benzylium perchlorate groups introduced onto ultrafine silica surface was investigated.
      
The cationic graft polymerization of styrene and cationic ring-opening polymerization of ε-caprolactone were found to be initiated by the surface benzylium perchlorate groups and the corresponding polymers were grafted onto the surface.
      
Wet-end properties of cationic graft terpolymerized polyacrylamides
      
  cationic grafting
The cationic grafting polymerization of isobutylene (IB) from a poly(vinyl acetate) (PVAc) backbone was initiated by the combination of PVAc with titanium tetrachloride (TiCl4) in methylene chloride (CH2Cl2) solution at -65°C.
      
Cationic grafting from plasma-modified polymer surfaces
      
Polypropylene (PP) fibers have been surfacechlorinated by RF plasma process and used in conjunction with Et2AlCl to initiate the cationic grafting of styrene.
      
Kinetic consequences of cationic grafting (or blocking) onto and from have been derived by assuming the operational presence of these two mechanisms.
      
Cationic grafting of norbornadiene, indene, and 1,3-cyclohexadiene from PVC
      
  cationic graft copolymerization
Poly(indene-g-isobutylene) was prepared by cationic graft copolymerization of isobutylene from halogenated polyindene.
      


Cationic graft copolymerization of α-methylstyrene (α-MS) with light chlori-nated SBS was investigated. The preparation of SBS-g-α-MS copolymer was inves-tigated with A1Et_2C1 in toluene/CH_2Cl_2 solvent mixtures. It was found that lowreaction temperature and high volume percentage of CH_2Cl_2 might give high mono-mer conversion and efficient grafting efficiency (GE). A equation was founded forthe calculation of GE Tensile strength of SBS-g-α-MS copolymer was increased andelongation was decreased while increasing...

Cationic graft copolymerization of α-methylstyrene (α-MS) with light chlori-nated SBS was investigated. The preparation of SBS-g-α-MS copolymer was inves-tigated with A1Et_2C1 in toluene/CH_2Cl_2 solvent mixtures. It was found that lowreaction temperature and high volume percentage of CH_2Cl_2 might give high mono-mer conversion and efficient grafting efficiency (GE). A equation was founded forthe calculation of GE Tensile strength of SBS-g-α-MS copolymer was increased andelongation was decreased while increasing GE.

研究了SBS阳离子接枝α-甲基苯乙烯共聚合反应。探讨了以A1Et_2CI为催化剂时,反应温度、溶剂极性、单体浓度等因素对氯化SBS与α-甲基苯乙烯接枝反应的影响。建立了用凝胶渗透色谱实验求算接枝效率的方法。此外,还测定了接枝共聚物的拉伸力学性能。

Cationic graft copolymerization of α-methylstyrene on lightly chlorinated po-lybutadiene (PB) has been studied with AIEt-2Cl as catalyst and the mixtures oftoluene and CH_2Cl_2 as solvent. It is found that gelation of the copolymerization isaffected by reaction temperatures, volume percentages of CH_2Cl_2 and the chlorinecontents in the PB backbone. The α-methylstyrene conversion is also affected bythe volume percentage of CH_2Cl_2 and concentration of AlEt_2Cl. The increasing ofthe 1,2-vinyl contents in PB...

Cationic graft copolymerization of α-methylstyrene on lightly chlorinated po-lybutadiene (PB) has been studied with AIEt-2Cl as catalyst and the mixtures oftoluene and CH_2Cl_2 as solvent. It is found that gelation of the copolymerization isaffected by reaction temperatures, volume percentages of CH_2Cl_2 and the chlorinecontents in the PB backbone. The α-methylstyrene conversion is also affected bythe volume percentage of CH_2Cl_2 and concentration of AlEt_2Cl. The increasing ofthe 1,2-vinyl contents in PB backbone doesn't change apparently the monomerconversion.

以A1Et_2Cl作催化剂,二氯甲烷/甲苯为混合溶剂,研究了含氯量较低的氯化聚丁二烯与a-甲基苯乙烯的阳离子接枝共聚反应。结果表明,反应温度、CH_2Cl_2的体积分数及聚丁二烯主干上的氯含量对共聚反应的凝胶形成影响很大;CH_2Cl_2的体积分数及AlEt_2Cl量对a-甲基苯乙烯聚合转化率也有影响;聚丁二烯-1,2含量的增大,单体转化率变化不大,但接枝效率却下降。

It is generally known that tetravalent cerium or trivalent manganese can be used as initiator for grafting of vinyl monomers onto starch. We have now discovered that KMnO_4 in acid solution is a excellent initiator for graft copolymerization of acrylamide monomers on starch without any oxidative pretreatment. The effects of the weight ratio of starch and monomers, pH,conentration of initiator, reaction time and temperature on the molecule weight of grafting chain have been invetigated. The structural characteristics...

It is generally known that tetravalent cerium or trivalent manganese can be used as initiator for grafting of vinyl monomers onto starch. We have now discovered that KMnO_4 in acid solution is a excellent initiator for graft copolymerization of acrylamide monomers on starch without any oxidative pretreatment. The effects of the weight ratio of starch and monomers, pH,conentration of initiator, reaction time and temperature on the molecule weight of grafting chain have been invetigated. The structural characteristics of copolymer chains are characterized by IR and scanning electric microscope (SEM). The graft copolymer can be cationized and anionized. The conditions of cationizing have been discussed here.

本文以KMnO_4酸性溶液作为丙烯酰胺和未经氧化处理的淀粉接枝共聚的引发剂,通过实验研究了接枝共聚过程中淀粉与单体的重量比、pH、引发剂浓度、反应时间、温度等对接枝链分子量的影响,并对接枝共聚物阳离子和阴离子化条件以及阳离子接枝共聚物用作造纸助留、助滤剂做了实验研究。

 
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