Random good picture Not show

1 The effect of solid-state polycondensation ( SSP ) process on the melting behavior of PET was studied by Differential Scanning Calorimetric (DSC) measurement.

2 The key equipment in polycondensation phase of non - phosgene process was emphatically introduced.

3 According to the polycondensation reaction balance and molecular diffusion of water balance and balance of mass transfer theory, the experimental phenomena was explained reasonably.

4 Fluorine containing aniline resin was synthesized by polycondensation of 2 TriFluoromethyl aniline with formaldehyde.

5 Detailedly introduces definition classification and character of interfacial polycondensation and influential factors of polycondensate molecular weight.

6 The influence of melt polycondensation and solvent refluxing methods of lactide polymerization and chain extension agents on relative molecular weight of polylactide was studied.

7 The results showed that the solid state polycondensation improved the inherent viscosity of the chips, the viscosity fluctuation,(www.Sentencedict.com) carboxyl-end group content and water content of PET chips decreased.

8 A novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.

9 Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.

10 The N-methyl-2-pyrrolidone is chosen as polycondensation media and toluene as carrier of water.

11 Poly(succinimide)(PSI) was synthesized by polycondensation of L-aspartic acid in a solvent. The effects of the catalyst, reaction time and solvent on the reaction were studied.

12 The article shows the preparation process of high viscosity Polycaprolactam from low viscosity Polycaprolactam by solid-phase polycondensation.

13 It was also found that the contents of diethylene glycol (DEG) groups and the end-acid groups are increased during the polycondensation, due to the presence of nanoclay.

14 The amelioration of the traditional method of the PLA melt polycondensation is also discussed.

15 Monomers containing active functional groups were prepared from polyamine and achieved a series of polymers with dithiocarbamate by homopolymerization, copolymerization or polycondensation methods.

16 This method can be added into polymer resins and polycondensation objects.

17 The shaft seal leakage, judgement and emergency measures of the final polycondensation reactor was introduced.

18 The microcomposites of aromatic-aliphatic copolyamide with polysulfone (PAA/PSF) were synthesized by in-situ polycondensation.

19 PPTA (polyphenylene terephthalamide) pulp was prepared by semi-continuous direct polycondensation using a co-current rotating and meshing twin screw extruder as main reactor.

20 Novel controlled releasing polythiourea microcapsules were prepared from terephthaloyl diisothiocyanate and o-phenylenediamine by interfacial polycondensation.

21 PLA has been produced by ring-opening polymerization of lactide or direct polycondensation of lactic acid.

22 A series of aromatic copolyesters of different compositions with bisphenol A diacetate, terephthalic acid and isophthalic acid as raw materials were prepared by means of melting polycondensation.

23 There is an interference effect between reaction and crystallization in solid state polycondensation(SSP) of poly(ethylene terephthalate )(PET).

24 Polylactic acid with low molecular weight was prepared by the direct melt polycondensation, then 2,4-toluylene diisocyanate(TDI) was used as chain extender to improve the molecular weight.

25 Preparation of Polyester varnish can be made by means of dissociation, esterification and polycondensation of waste polyester beverage bottle.

26 Organic silicate is prepared by Quaternizing, Hydrosilylation addition and Balanced or Polycondensation reaction.

27 A comparison has been made between systems of stannous oxalate and antimony trioxide, the result shows the former has a bright future as a polycondensation catalyst in practical production.

28 A green scale inhibitor of polyaspartic acid (PASP) was prepared from the thermal polycondensation of the monomers maleic anhydride and ammonia water.

29 Starting from D, Llactic acid and glycolic acid, biodegradable drug delivery material poly(lactic acid-glycolic acid) (PLGA) was directly synthesized via melt polycondensation.

30 The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.