聚四氢呋喃

分析聚四氢呋喃供求关系现状，对市场需求进行了预测。

To analyze the market situation of PTMEG at home and abroad .

尼龙1010－聚四氢呋喃多嵌段共聚物的ESCA研究

ESCA studies on polyamide-1010-polytetramethylene oxide multiblock copolymers

聚醚二醇主要采用聚四氢呋喃醚二醇（PTMEG）。

Polyether diol mainly adopts polytetramethylene ether glycol ( PTMEG ) .

醇解反应主要以氨酯键断裂方式进行，从降解产物上层分离物中可回收聚四氢呋喃（PTMG）。

The recycled Polytetrahydrofuran ( PTMG ) can be obtained from the glycolysis product .

目的观察聚四氢呋喃聚乳酸（共聚物C4）作为可降解玻璃体替代物对孔源性视网膜脱离的治疗效果。

Objective To observe the therapeutic effect of poly tetrahydrofurfuryl-co-lactic acid ( copolymer C 4 ) as the biodegradable vitreous substitutes on rhegmatogenous retinal detachment .

以聚苯乙烯为把的聚四氢呋喃（PTHF）梳型聚合物的制备

Synthesis of PTHF comb - shaped polymer with PST as the handle

以对苯二甲酸二甲酯（DMT）、1,4-丁二醇（BG）、聚四氢呋喃（PTMG）为主要原料，合成热塑性聚酯弹性体（TPEE）。

The thermoplastic polyester-ether elastomer ( TPEE ) was synthesized with dimethyl terephthalate ( DMT ), 1,4-butylene-glycol ( BG ), polytetrahydrofuran ( PTMG ) as raw materials .

以聚四氢呋喃二醇（PTMG）、二苯基甲烷4,4'-二异氰酸酯（MDI）和乙烯-醋酸乙烯共聚物（EVA）为主要原料合成了反应性聚氨酯热熔胶。

The reactive polyurethane hot-melt adhesive was synthesized by using polytetramethylene glycol ( PTMG ), methylene-4,4 ' - diphenylene diisocyanate ( MDI ) and ethylene-vinyl acetate copolymer ( EVA ) as main raw materials .

以异佛尔酮二异氰酸酯（IPDI），聚四氢呋喃醚二醇（PTMG）和N-甲基二乙醇胺（MDEA）为主要原料合成了阳离子水性聚氨酯分散液，并对合成过程中游离NCO基含量进行了测定。

A kind of cationic waterborne polyurethane dispersion was synthesized by isophorone diisocyanate ( IPDI ), polytetrahydrofuran ( PTMG ), and N-methyl diethanolamine ( MDEA ) . Its dissociative NCO during preparation were measured .

以聚四氢呋喃醚二醇（PTMG）、异氟尔酮二异氰酸酯（IPDI）、亲水单体二羟甲基丙酸（DMPA），乙二胺为主要原料，制备了稳定的水性聚氨酯乳液。

Aqueous polyurethane emulsion was prepared with polyoxytetramethylene glycol ( PTMG ) , isophorone diisocyanate ( IPDI ), dimethylol propionic acid ( DMPA ) and ethylene diamine ( EDA ) as primary materials .

以氧化铝固载杂多酸（HPA/Al2O3）为催化剂、环氧氯丙烷（ECH）为促进剂催化四氢呋喃（THF）开环聚合，合成了含有ECH结构单元的端羟基聚四氢呋喃（PTHF）。

The alumina supported heteropoly-acid catalysts were prepared and used in the polymerization of THF in the presence of epichlorohydrin ( ECH ) to obtained the poly-tetrahydrofuran ( PTHF ) containing ECH moieties .

以发烟硫酸-高氯酸为催化剂，通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃（PTHF）。

Polytetrahydrofuran ( PTHF ) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst .

采用红外二向色性法对聚四氢呋喃醚二醇/4,4′-二苯基甲烷二异氰酸酯系聚氨酯薄膜样品的拉伸取向行为进行了研究，结果表明，随着拉伸倍率的增大，CH2角基团发生取向。

In the paper , the orientation behaviors of polyurethane [ poly ( tetrahydrofuran / methylene diphenyl diisocyanate ) ] film were investigated by means of infrared dichroism measurement . The results show that CH 2 groups orient as draw ratio increases .

端羧基乙烯基聚四氢呋喃/聚苯乙烯固化反应动力学

Kinetics of cure reaction of carboxyl vinyl terminated polytetrahydrofuran and styrene

聚四氢呋喃是生产氨纶和聚氨酯材料的重要原料。

Polytetrahydrofuran is vital raw material of polyurethane fiber and polyurethane material .

聚四氢呋喃-聚甲基丙烯酸甲酯两嵌段共聚物的结晶行为聚甲基丙烯酸甲酯-聚丙烯酰胺嵌段共聚物的合成与表征

Crystallization Behavior of Poly ( tetrahydrofuran-b-methyl methacrylate ) Diblock Copolymer

介孔二氧化硅负载磷钨杂多酸催化合成聚四氢呋喃

Catalytic Synthesis of Polytetrahydrofuran by Phosphotungstic Heteropoly Acid Supported on Mesoporous Silica

聚四氢呋喃醚二醇的合成和应用二醇醚工艺技术的新进展

Preparation and Application of PTMG NEW PROGRESS ON TECHNOLOGY FOR SYNTHESIS OF GLYCOL ETHERS

氧化铝固载杂多酸催化合成聚四氢呋喃

Synthesis of polytetrahydrofuran over alumina supported heteropoly acids

窄分子量分布聚四氢呋喃的合成

Preparation of Polytetrahydrofuran with Narrow Molecular Mass Distribution

聚四氢呋喃及其下游产品的开发应用

Developing application of polytetrahydrofuran and its downstream products

聚四氢呋喃生产工艺评述

Review for production processes of polytetramethylene ether glycol

聚甲基丙烯酸甲酯-聚四氢呋喃嵌段共聚物微观结构的研究

Study on microdomain structure in polydisperse poly ( methy methacrylate-b-tetrahydro - furan ) block copolymer

含偶氮聚四氢呋喃的合成及分解

Synthesis and decomposition of azo-containning polytetrahydrofuran

聚四氢呋喃催化合成研究进展

Advances in the synthesis of polytetrahydrofuran

详细介绍了聚四氢呋喃的国内外经济概况和生产工艺。

The economics situation at home and abroad and manufacture processes of polytetrahydrofuran were introduced in detail .

我国聚四氢呋喃发展走上快车道

China Polytetrahydrofuran Develop Fast

通过紫外光引发聚合的方式可以制备相对分子质量分布为1·028、数均相对分子质量为1·004×104、转化率大于85%的聚四氢呋喃。

Polytetrahydrofuran with distribution of relative molecular mass 1.028 , number average relative molecular mass 1.004 × 10 ~ 4 , conversion more than 85 % was prepared .

当前主要采用固体酸作催化剂合成聚四氢呋喃，它具有对设备腐蚀性小、不污染环境、易于再生、产物相对分子质量及分布可控等优点。

At present , the catalyst for manufacturing polytetrahydrofuran is focus on solid acid due to it has the advantages such as lower corrosive , non-pollutive , easier to regeneration and controllable product molecular weight and its distribution .

在窄分布聚笨乙烯四氢呋喃体系中，GPC的测量结果受柱温变化的影响，温度系数dVR/dT随聚苯乙烯分子量减小而增大。

In a system of narrow-distribution polystyrene and tetrahydrofuran , we conclude that the GPC results depend on the column temperature . The temperature effect increases with decreasing of the molecular weight of polystyrene , so that we have to control the column temperature or to correct the retentive volume .