丙二醇

水、桃花萃取物、光果甘草提取物、金缕梅提取物、维生素E、透明质酸、薏仁提取物、甘油、植物香料、丙二醇。

Ingredients : water , peach blossom extract , Glycyrrhiza glabra extract , witch hazel extract , vitamin E , hyaluronic acid , wheat seed extract , glycerin , plant spice , propylene glycol .

C2～C3多元醇是指乙二醇、丙二醇和丙三醇，广泛应用于化纤、汽车、食品和医药等行业中。

C2 ~ C3 polyhydric alcohols including ethylene glycol , propylene glycol and glycerol are widely used in the chemical fibre , automobile , food and medical industries .

非离子型X射线造影剂中间体1-氨基-2,3-丙二醇的合成

Synthesis of an Intermediate of Non ionic X ray Contrast Agent , 1 Amino 2,3 propanediol

NaCl在混合溶剂（1,2-丙二醇和水）中热力学性质的研究

Study on Thermodynamics of NaCl in Mixed Solution of Water and 1,2-Propanediol

电导法测定HCl在H2O和1.2-丙二醇混合溶剂中的活度系数

Study on activity coefficient of HCl in H_2O and 1.2-propanediol mixed solvent system with conductivity method

目的：建立酱油中3-氯-1,2-丙二醇固相萃取净化GC检测方法。

Object : To develop a method for 3-chloro-1,2-propandiol , using solid-phase extraction and capillary gas chromatography .

TiOSO4／SiO2催化合成环己酮缩1,2-丙二醇

Catalytic Synthesis of Cyclohexanone 1,2-Propanediol Ketal over TiOSO_4 / SiO_2

高分辨固体NMR研究不饱和聚酯/聚乙二醇-聚丙二醇-聚乙二醇三嵌段共聚物共混体系的相容性及局域分子运动

High-resolution solid-state NMR studies on the miscibility and dynamics in unsaturated polyester / peo-ppo-peo triblock copolymer thermoset blend

klebsiellapneumoniae合成1,3-丙二醇过程中的生长与催化耦联

Biocatalysis-coupled cell growth process in 1,3-propanediol production by Klebsiella pneumoniae

酸性介质中1,2-丙二醇在铂电极上吸附和氧化过程的原位FTIR反射光谱研究

In-situ FTIR studies on adsorption and oxidation of 1,2-propanediol at a platinum electrode in acid solutions

在不同浓度的丙二醇对精子活力的影响进行比较中，2%组要低于4%和6%组（P0.05），而4%与6%组差异不显著（P0.05），但是三组精子活力都小于30%。

And the sperm motility was no significant difference between the groups of 4 % and 6 % ( P0.05 ) .

利用klebsiellapneumoniae生长与催化耦合的特点，将好氧生长与厌氧转化两个过程耦合，开发了两段双底物发酵生产1,3-丙二醇的新工艺，并对其工艺特点进行了初步研究。

Two stage two substrate fermentation of 1,3-propanediol by Klebsiella pneumoniae was studied .

Na2WO4-H2O2体系催化1,2-丙二醇和丁二醇的选择氧化

Selective Oxidation of 1,2-Propanediol and Butanediol Catalyzed by Na_2WO_4-H_2O_2

1,3-丙二醇中残留羰基对PTT切片色相的影响

The effect of residual carbonyl in 1,3-propanediol on yellowness index of polytrimethylene terephthalate chips

PTT的工业开发及1,3丙二醇的合成

Industrial development of PTT and synthesis of 1,3-pdo

代谢副产物对klebsiellapneumoniae生长及合成1,3-丙二醇的影响

Effect of By-products on Cell Growth and Biosynthesis of 1 , 3-Propanediol by Klebsiella pneumoniae

研究了CO2与1,2-丙二醇（PG）合成碳酸丙烯酯（PC）的反应，优化了反应条件。

Synthesis of propylene carbonate ( PC ) from carbon dioxide and 1,2-propylene glycol ( PG ) over potassium carbonate catalyst was studied .

以及生产PTT的原料1,3-丙二醇生产工艺近期所取得的新进展。

The latest technical advance of 1,3-propanediol for PTT raw materials production technique were introduced emphatically .

Kevlar纤维的聚丙二醇及丁烯二醇改性研究

Research on the Modification of Kevlar Fiber by Polypropylene Glycol and Cis-2-Butene-1,4-Diol

PTT（polytrimethyleneterephthalate），即聚对苯二甲酸丙二醇酯的英文缩写，是聚酯家族中的一类产品。

PIT ( Polytrimethylene Terephthalate ) is a new product of aromatic polyesters .

丙二醇甲醚丙酸酯是涂料用无毒P系列溶剂中的一员，它既保持了E系列溶剂的优良溶解性，又克服了E系列溶剂的毒性。

Propylene glycol monomethyl ether propionate ( PMP ) is one of the nontoxic P series solvents used in coating . PMP keeps the good solubility of E series and overcomes E series ' toxicity .

通过WAXD，POM对聚对苯二甲酸丙二醇酯（PTT）与聚对苯二甲酸丁二醇酯（PBT）共混物，在非等温条件下结晶度及晶貌形态进行了研究。

The crystallization properties and crystal morphologies of the PTT / PBT blends were studied by WAXD and POM under non-isothermal conditions .

PTT/PET并列复合纤维是由PTT（聚对苯二甲酸丙二醇酯）、PET（聚对苯二甲酸乙二醇酯）这两种具有不同热力学性能的聚酯通过并列复合纺丝工艺制成的。

PTT / PET side-by-side bi-component fibers are composite by PTT ( Polytrimethylene terephthalate ) and PET ( Polyethylene terephthalate ) polymers , which have different hot shrinkage properties .

余下的含氟丙烯酸酯单体与丙烯酸丁酯、甲基丙烯酸丁酯及丙二醇乙醚混合并加入偶氮二异丁腈，溶解后缓慢滴加入四口烧瓶中保温反应4h，制得含氟丙烯酸酯共聚物。

The rest fluorinated acrylic monomer is mixed with butyl acrylate , butyl methylacrylate and propanediol ether , and added by azobisisobutyronitrile .

如今的兴趣主要是集中在利用微生物发酵法合成1,3-丙二醇，其中以克雷伯氏菌（klebsiellapneumoniae）为代表。

The current focus of research is on the conversion of 1,3-propanediol by microbial fermentation using a variety of bacteria , in particular , Klebsiella pneumoniae .

用硼氢化钠作为还原剂，在有机溶剂中还原α羟甲基苯乙酸甲酯，得到2苯基1,3丙二醇（PPD），产率大于75%。

2-Phenyl-1 , 3-propanediol was prepared from the reduction of methyl tropate with sodium borohydride in organic solvent in more than 75 % yield .

通过考察1,3-丙二醇合成中关键酶、辅酶的变化，研究了分段通入空气对klebsiellapneumoniae厌氧发酵生产1,3-丙二醇的影响。

The effect of air in alternative aeration model on 1,3-propandiol anaerobic biosynthesis was studied by examining the activities of key enzymes and coenzymes in Klebsiella pneumoniae .

对克雷伯氏肺炎杆菌（Klebsiellapneumonia）利用甘油流加补料生产1,3-丙二醇的研究表明，在发酵的同时会产生大量乳酸、乙酸等副产物。

In practical fed-batch culture with fermentation of glycerol by Klebsiella pneumonia for PDO , a number of byproducts , such as lactate and acetate etc. will be produced simultaneously .

研究了聚对苯二甲酸丙二醇酯（PTT），PET，CDP在不同温度和时间下的特性粘数和端羧基含量的变化。

The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly ( trimethylene terephthalate )( PTT ), PET and CDP .

这表明AOT／乙醇／CO2能够在一定条件下选择性地增溶1,3-丙二醇，处理稀水溶液。

This indicated that AOT / ethanol / CO2 can solubilize 1,3-propanediol selectively at certain conditions . And it can be used to deal with the dilute aqueous solutions .