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Merck
CN

764698

聚 L -丙交酯

average Mn 20,000, PDI ≤1.8

别名:

聚乳酸, L-乳酸聚合物, PLA，聚（L-L-乳酸）

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关于此项目

线性分子式:
H(C3H4O2)nOCH3
NACRES:
NA.23
UNSPSC Code:
12162002

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产品名称

聚 L -丙交酯, average Mn 20,000, PDI ≤1.8

form

solid

optical activity

[α]22/D -153°, c = 0.5% in chloroform

mol wt

average Mn 20,000

degradation timeframe

>3 years

transition temp

Tm 167-172 °C

PDI

≤1.8

storage temp.

2-8°C

Quality Level

100

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相关类别

Application

Used in Drug Delivery including coating nanoparticles. Can be end-group functionalizated or used as a macroinitiator/block precursor.

Features and Benefits

High initial strength, good strength retention and high amount of crystallinity as much as 70% which in turn is responsible for the very slow degradation rate.

General description

Poly (L-lactide) is a semi-crystalline polymer which exhibits strong optical rotation and good mechanical properties. It is mostly used in the synthesis of degradable polymers which are used in orthopaedic devices, in dental applications, as scaffolds for autografted new skin, wound covers, anastomose systems and stents. They are biodegradable since the polyester backbone degrades by simple hydrolysis to form non-toxic compounds.

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCX2153
MKCL6243
MKCH4868
MKBX5809V
MKBV1917V

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Chemical synthesis of polylactide and its copolymers for medical applications
Bendix, D.
Polymer Degradation and Stability, 59(1), 129-135 (1998)
Effect of poly (ethylene glycol)-block- poly (L-lactide) on the poly [(R)-3-hydroxybutyrate]/poly (L-lactide) blends
Yoon, J. S., Lee, W. S., Kim, K. S., Chin, I. J., Kim, M. N., & Kim, C.
Eur. Polymer J., 36(2), 435-442 (2000)
Synthesis and thermal properties of novel star-shaped poly (l-lactide)s with starburst PAMAM-OH dendrimer macroinitiator.
Zhao, Y. L., Cai, Q., Jiang, J., Shuai, X. T., Bei, J. Z., Chen, C. F., & Xi, F.
Polymer, 43(22), 5819-5825 (2002)
Zhang, Wen-Bin; et al.
Macromolecules, 44, 2589-2596 (2011)
Wolf, Florian F.; et al.
Macromolecules, 42, 5622-5628 (2009)
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