玻璃化的

Copolymerization modification of PET was made by means of adding a third monomer on a homemade facility. The effects of the content of the third monomer NPG on the T, melting behavior and heat shrinkability of PET were studied, and the effect of drawing technology on the shrinkage of the film was also studied.

运用自制的反应装置，通过加入第三单体的方法对聚对苯二甲酸二醇酯进行了共聚改性，研究了第三单体新戊二醇用量对PET玻璃化转变温度T、结晶熔融行为和热收缩性能的影响，同时对拉伸工艺对薄膜收缩率的影响也进行了研究。

Copolymerization modification of PET was made by means of adding a third monomer on a home-made facility. The effects of the content of the third monomer NPG on the T_g, melting behavior and heat shrinkability of PET were studied, and the effect of drawing technology on the shrinkage of the film was also studied.

运用自制的反应装置，通过加入第三单体的方法对聚对苯二甲酸二醇酯进行了共聚改性，研究了第三单体新戊二醇用量对PET玻璃化转变温度Tg、结晶熔融行为和热收缩性能的影响，同时对拉伸工艺对薄膜收缩率的影响也进行了研究。

Molecular dynamics simulations of NPT (constant pressure and constant temperature) dynamics are carried out to obtain specific volume as a function of temperature for polyethylene , polypropylene , poly-isobutylene , polyoxymethylene , and polydimethylsiloxane .

用NPT分子动力学模拟来获得聚乙烯、聚丙烯、聚异丁烯、聚甲醛和聚二甲基硅氧烷在不同温度下的特征体积。体积玻璃化转变温度通过对模拟得到的V-T作图的曲线的拐点决定。

The results showed that the frequency of germination were able to be increased by keeping seed vessel, culturing seeds with radicle up and pre-treating seeds in 5.0mg/L GA3 solution for 12h. The frequency of explant-browning was reduced by adding AC 0.5mg/L to induction media and the vigor of plantlets was promoted by the AC-adding. The propagating coefficient could be improved and the frequency of bud-vitrifration increased by adding 150mg/L coconut water.

结果表明发芽时保留种皮、接种时胚根向上对蚕豆种子的萌发有着至关重要的影响，用5.0mg/L GA3溶液浸种12h有利于种子萌发；培养基中添加0.5g/L AC能有效抑制外植体的褐化，并能使植株生长健壮；培养基中添加150mg/L椰汁能提高繁殖系数，有效抑制玻璃苗的发生。

It has been proved that it was an amorphous plastics with high glass temperature,soluble in some solvents at room temperature and the polymer was also an intermediate product of cross-linked copolymer and grafted copolymer.

结果表明，这系列聚合物是具有较高的玻璃化温度的可溶性无规共聚物。聚合物含有不饱和双键结构，可作为交联聚合物、接枝聚合物及其它特种高分子材料的中间体。

Experiments show that: when the PTA and SA molar ratio of 1:1, the melting point and glass transition temperature of copolymer obtained is 117℃ and 56℃ respectively.

实验表明，当PTA与SA的摩尔比为1：1时，所得到的共聚酯的熔点为117℃，玻璃化温度为56℃。

The composition of carbohydrates in concentrated orange juices and its effects on glass transition temperature and viscosity of the products were investigated.

研究了浓缩橙汁中的碳水化合物组成以及它们对产品的玻璃化转变温度和粘度的影响。

The polymers have been detected with IR,acid-base titration, element analysis, glass transition temperature,Viscometry and UV. The results show that introducing functional groups to the chain of polymer molecule will...

结果表明，通过在聚合物分子链上引入功能基因，可以大大增加分子链内或链间作用力，从而导致了聚合物的玻璃化转变温度的升高、粘度的反常增大以及紫外吸收峰的加宽

Vitrification and encapsulation_dehydration are two new techniques and may h...

由于两步法保存技术的局限性，玻璃化和包埋脱水法等新技术在某些藻类的种质保存中可能有较大的应用潜力。

Hrough copolymerization of styrene with few quantity of methacrylic acid, maleic anhydrate or 4-vinyl pyridine respectively and of butyl methacrylate with maleic anhydrate, the functional groups carboxyl, simple anhydride and pyridyl have been introduced respectively to the chain of PS or PBma.

通过苯乙烯与少量的甲基丙烯酸、马来酸酐或4—乙烯基吡啶的共聚及甲基丙烯酸正丁酯与马来酸酐的共聚，可在聚苯乙烯及聚甲基丙烯酸丁酯链上分别引入功能基因羧基、酸酐基和吡啶基对共聚物进行了红外光谱、酸碱滴定、元素分析、玻璃化转变温度、粘度及紫外光谱的测定。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。