Evidence map›Paper›PMID 33923329›Full record

ArticlePolymers2021

Biodegradable Polyurethanes Based on Castor Oil and Poly (3-hydroxybutyrate).

Pathikrit Saha, Chanin Khomlaem, Hajer Aloui, Beom Soo Kim

Abstract read
In one paragraph

Article in Polymers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Pathikrit SahaDepartment of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Korea.
Chanin KhomlaemDepartment of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Korea.ORCID 0000-0003-4911-1660
Hajer AlouiDepartment of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Korea.ORCID 0000-0002-2953-3148
Beom Soo KimDepartment of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Korea.ORCID 0000-0002-7251-7231

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biodegradable polyurethanes (PUs) were produced from castor oil (CO) and poly (3-hydroxybutyrate) diol (PHBD) using hexamethylene diisocyanate as a crosslinking agent. PHBDs of different molecular weights were synthesized through transesterification of bacterial PHB and ethylene glycol by changing the reaction time. The synthesized PHBDs were characterized in terms of Fourier transform infrared and proton nuclear magnetic resonance spectroscopy. A series of PUs at different NCO/OH and CO/PHBD ratios were prepared. The resulting CO/PHBD-based PUs were then characterized in terms of mechanical and thermal properties. Increasing PHBD content significantly increased the tensile strength of CO/PHBD-based PUs by 300% compared to neat CO-based PU. CO/PHBD-based PUs synthetized from short chain PHBD exhibited higher tensile strength compared to those produced from long chain PHBD. As revealed by scanning electron microscopy analysis, such improvement in stiffness of the resulting PUs is due to the good compatibility between CO and PHBD. Increasing PHBD content also increased the crystallinity of the resulting PUs. In addition, higher degradation rates were obtained for CO/PHBD-based PUs synthetized from long chain PHBD compared to neat CO PU and PUs produced from short chain PHBD.

Indexed as

biodegradationcastor oilpoly (3-hydroxybutyrate)polyurethane

Identifiers

PMID33923329
PMCPMC8123115

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.