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Опис документа

Yan-Hua Cai, Filimonov D. A., Yan-Hua Zhang
Synthesis of N,N'-bis(benzoyl) dodecanedioic acid dihydrazide and effect on nucleation and mechanical properties of poly(L-lactic acid)

Вид документа:  Складова частина документа 
Мова:  Російська  Обсяг:  C. 95-98 
УДК:  54.057/8:542 

Аннотацiя:

N,N'-Bis(benzoyl) dodecanedioic acid dihydrazide (NA) was synthesized by a advanced routes, and the structure of NA had been confirmed by FT-IR, 1H NMR. The influence of the NA to nucleation and mechanical properties of Poly(L-lactic acid)(PLLA) were investigated. Compared to the neat PLLA, with the addition of 0.8% NA, the crystallization temperature (T o) increase from 105.88 °C to 125.07 °C and the crystallization enthalpy (?H c) increase from 1.379 J•g -1 to 29.17 J•g -1 at a cooling rate of 1 °C/min from melt. The low content of NA can increase the mechanical properties of PLLA. Upon addition of 0.5%NA, comparing with the neat PLLA, the tensile strength modulus and elongations at break increase from 74.4 MPa, 3592.8 MPa and 2.72% to 85.3 Mpa, 4266.2 Mpa and 2.98%, respectively. And the impact strength possesses a maximum value for the critical NA loading 1%.

Є складовою частиною документа Известия высших учебных заведений. Химия и химическая технология [Текст]. Т. 56. № 2 / М-во общ. и проф. образования РФ. — Иваново : Иван. хим.-технол. ин-та, 2013.

Теми документа

• УДК/5 Математика та природничi науки/54 Хiмiя. Кристалографiя. Мiнералогiя