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state polymerization
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     The macroscopic single crystals of polybis-(p-toluene sulfonate) of 2,4-hexadiyne-1,6-diol (PTS) were prepared by means of solid state polymerization. The largest lateral dimension of PTS crystal is now as large as 26mm.
     通过固态晶相聚合制得了聚双(对甲苯磺酸)-2,4-己二炔-1,6-二醇脂(PTS)宏观单晶体,极大尺寸达26mm。
短句来源
     Solid State Polymerization (SSP) is carried out by heating the low molecular weight polymer pellets in an inert gas atmosphere at a temperature below their melting temperature but above their glass transition temperature. SSP of nylon 6 as a powerful way to enhance its average molecular weight has been of great interest to polymer chemists and engineers.
     固相聚合(SSP)是在惰性气体的环境中,将低分子的预聚体切片加热到其熔化温度以下,但在玻璃化温度以上进行的聚合反应,尼龙6的固相聚合作为一种有效地提高它的平均分子量的方法已经受到聚合材料领域的化学界和工程界的广泛关注。
短句来源
     Based on the detail analyzing of polymerization kinetics, the mechanism, and modeling studies, a kinetics mathematic model of Solid State Polymerization for nylon 6 was proposed.
     本论文对尼龙6固相聚合进行了实验研究,探索了工艺过程和操作条件对固相聚合的影响。
短句来源
     The process conditions in the stages of esterification, melt polymerization and solid state polymerization were discussed.
     讨论了酯化反应 ,熔融聚合 ,固相聚合阶段的工艺条件。
短句来源
     Starting from lactic acid and using stannous octoate as catalyst, polylactic acid w ith different molecular weight was synthesized through direct polymerization of lactic acid, ring-opening polymerization of lactides, melt-solid state polymerization and azeotroping refluxing.
     以乳酸为原料,辛酸亚锡为催化剂,采用乳酸直接聚合(一步法)、丙交酯开环聚合(两步法)、熔融-固相聚合、溶剂回流脱水等不同的实验方法分别合成出了不同相对分子质量的聚乳酸。
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  “state polymerization”译为未确定词的双语例句
     Study of Solid State Polymerization of Bis (p-Toluene Sulfonate)of 2,4-Hexadiyne-1,6-Diol with Laser Micrometry
     激光测微法研究双(对甲苯磺酸)-2,4-已二炔-1,6-二醇酯的固态热聚合
短句来源
     SYNTHESIS AND SOLID STATE POLYMERIZATION OF POLY(ETHYLENE 2,6\|NAPHTHALATE)
     聚2,6-萘二甲酸乙二酯的合成及固相聚合
短句来源
     The intrinsic viscosity of PEN chip subjected to solid state polymerization increased from 0 5 dL/g in the stage of melt polymerization to more than 0 7 dL/g.
     通过固相聚合后 ,PEN切片的特性粘数可由熔融聚合的 0 .5 d L/g提高到 0 .7d L /g以上
短句来源
     STRUCTURAL DESIGN OF SOLID STATE POLYMERIZATION WORKSHOP
     固相缩聚装置厂房结构设计
短句来源
     High molecular weight polyoxymethylene was obtained from trioxane crystal by solid state polymerization with γ-irradiation from Co80 source.
     用Co~(60)γ射线辐照三聚甲醛晶体固相聚合得到高分子量的聚甲醛。
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  相似匹配句对
     Polymerization in Supercooled State
     过冷态聚合反应
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     Solid-State Polymerization of PBT
     PBT的固相缩聚的工艺研究
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     state.
     state.
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     State and V. T.
     Stace和V.T.
     Asymmetric Polymerization
     不对称聚合
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  state polymerization
This structural study reveals that the title compound does not undergo solid-state polymerization due to close packing.
      
High-pressure solid-state polymerization of diphenyldiacetylene
      
Synthesis and solid-state polymerization of 5-(p-methylthio-o-methyl-pyrimidinyl)-2,4- pentadiyn -1-ol and the third-order optic
      
The reaction is thus much more rapid in comparison with the solid-state polymerization of TS in its crystalline state.
      
Poly(sulphur nitride)was prepared by spontaneous solid state polymerization of disulphur dinitride crystals immersed in perfluoro(methyl cyclohexane).
      
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High molecular weight polyoxymethylene was obtained from trioxane crystal by solid state polymerization with γ-irradiation from Co80 source. The crystal structure of trioxane was accurately determinated. By using the crystal structure model of trioxane, the ring-opening polymerization mechanism of trioxane by γ-irradiation may be fairly well explained. Polyoxymethylene obtained by solid state polymerization of trioxane may have two types of molecular chains with different orientations, one...

High molecular weight polyoxymethylene was obtained from trioxane crystal by solid state polymerization with γ-irradiation from Co80 source. The crystal structure of trioxane was accurately determinated. By using the crystal structure model of trioxane, the ring-opening polymerization mechanism of trioxane by γ-irradiation may be fairly well explained. Polyoxymethylene obtained by solid state polymerization of trioxane may have two types of molecular chains with different orientations, one parallel to the C-axis of trioxane, while the other forming an angle of 75°37' with the C-axis.

用Co~(60)γ射线辐照三聚甲醛晶体固相聚合得到高分子量的聚甲醛。我们精确测定了三聚甲醛的晶体结构,利用三聚甲醛晶体结构模型,可以很好地阐明三聚甲醛在受到γ射线辐照后开环聚合的机理,由三聚甲醛晶体固相聚合得到的聚三聚甲醛,应该有两种不同取向的分子链,一种与三聚甲醛的c轴平行;另一种与c轴成75°37′的交角。

The macroscopic single crystals of polybis-(p-toluene sulfonate) of 2,4-hexadiyne-1,6-diol (PTS) were prepared by means of solid state polymerization. The largest lateral dimension of PTS crystal is now as large as 26mm. The molecules in a chain-extended conformation of PTS and their 100% degree of crystallinity have been demonstracted.

通过固态晶相聚合制得了聚双(对甲苯磺酸)-2,4-己二炔-1,6-二醇脂(PTS)宏观单晶体,极大尺寸达26mm。PTS晶体具有完全伸直链的结构和100%的结晶度。

Based on the considerations that in the system the initiation is a rapid process, the chain termination is not existed,and Al (i-Bu ) 3 is the prin-ciplae chain transfer agent, and under steady state polymerization conditions, a mathematical model is derived for the polymerization of isoprene with rare earth catalyst in the first three reactors of a continuous stirred tank reactor ( CSTR ) system. The analytical solutions indicate that the concentration of active polymer chains [Pr] is a function...

Based on the considerations that in the system the initiation is a rapid process, the chain termination is not existed,and Al (i-Bu ) 3 is the prin-ciplae chain transfer agent, and under steady state polymerization conditions, a mathematical model is derived for the polymerization of isoprene with rare earth catalyst in the first three reactors of a continuous stirred tank reactor ( CSTR ) system. The analytical solutions indicate that the concentration of active polymer chains [Pr] is a function of the polymer chain length ( r ) and other known polymerization parameters.This shows that in the present system the Solution of the dynamic equations is practical and feasible by continuous variable approximation method. Therefore, the continuous polymerization process of isoprene can be simulated with the numerical solutions of the first order differential equations in which the chain transfer constant (kf) is expressed as a function of the polymer chain length and the viscosity of polymerization medium. The molecular weight distribution in each reactor can be obtained by solving these differential equations by try-and-error method, and the calculated values are basically in coincidence with the experimental results obtained from the continuous polymerization of isoprene in a pilot plant.

本文提出了稀土催化异戊二烯进行连续聚合的数学模型。对本聚合体系的基本考虑是快引发、无终止及链转移均相体系。根据连续搅拌聚合过程稳态原理,推导了三釜连续聚合反应中聚合增长链浓度[Pr]的分析解,得出[Pr]是聚合度r及已知聚合参数的函数。据此,进一步采用连续变量法求取了[Pr]的近似值。在用微分方程数值解模拟异戊二烯连续聚合过程中,发现链转移速度常数k_f 应描述为r与反应介质粘度的函数,用反复逼近法计算的各反应器中聚合物分子量分布,与本体系中试连续聚合实例的数据基本一致。

 
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