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Merck
모든 사진(1)

주요 문서

922692

Sigma-Aldrich

Poly(lactide-alt-glycolide)

average Mn 20,000, 50:50 (lactide:glycolide)

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About This Item

Linear Formula:
(C5H6O4)n
UNSPSC 코드:
12162002
NACRES:
NA.23

양식

powder

Quality Level

피드(feed) 비율

50:50 (lactide:glycolide)

분자량

average Mn 20,000

색상

white to beige

저장 온도

2-8°C

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애플리케이션

Different from common Poly(lactide-co-glycolide) (PLGA) polymer, the lactic and glycolic units in Poly(lactide-alt-glycolide) alternate in sequence in the polymer chain, and the molar ratio of lactic to glycolic units in the polymer is exactly 1:1. Poly(lactide-alt-glycolide) exhibits excellent solubility in common organic solvents, such as acetonitrile, acetone, dioxane, DCM, and THF, providing great convenience for drug delivery researches and applications.

Common Poly(lactide-co-glycolide) (PLGA) is a biocompatible and biodegradable polymer that has been approved by the FDA for biomedical and pharmaceutical applications. PLGA based polymers are usually synthesized from copolymerization of glycolide (GA) and lactide (LA). However, the copolymerization of glycolide (GA) and Lactide (LA) typically results in broad composition ranges and a random block nature because of the much higher reactivity of GA and the drastic polymerization conditions. Thus, simple use of equimolar charges of GA and LA results in polymers containing longer glycolic blocks leads to poor solubility in common solvents.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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시험 성적서(COA)

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문서 라이브러리 방문

Synthesis of poly(D,L-lactic acid-alt-glycolic acid) from D,L-3-methylglycolide
Dong C M, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 38, 4179-4179 (2000)
Lin Yu et al.
Biomacromolecules, 12(4), 1290-1297 (2011-03-03)
This paper reports the influence of sequence structures of block copolymers composed of poly(lactic acid-co-glycolic acid) (PLGA) and poly(ethylene glycol) (PEG) on their thermogelling aqueous behaviors. A series of thermogelling PLGA-PEG-PLGA triblock copolymers with similar chemical compositions and block lengths

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