Evidence map›Paper›PMID 36850136›Full record

ArticlePolymers2023

Mock-Ups in Plastic Conservation Research: Processing and Aging of 3D Celluloid Specimens Simulating Historical Objects.

Christina Elsässer, Veronika Mayr, Peter Montag, Eva Mariasole Angelin, Harald Hilbig, Christian Ulrich Grosse, Marisa Pamplona

Open access · goldAbstract read
In one paragraph

Article in Polymers, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
8.0field-weighted citation impact, top 4% of its field
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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
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

7 authors at 3 institutions in 1 country.

Christina ElsässerConservation Science Department, Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany.
Veronika MayrConservation Science Department, Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany.ORCID 0000-0002-9655-9225
Peter MontagPSS, Polymer Standards Service GmbH, In der Dalheimer Wiese 5, 55120 Mainz, Germany.
Eva Mariasole AngelinConservation Science Department, Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany.
Harald HilbigProfessorship of Mineral Construction Materials, Technical University of Munich, Franz-Langinger-Straße 10, 81245 Munich, Germany.
Christian Ulrich GrosseChair of Non-destructive Testing, Technical University of Munich, Franz-Langinger-Straße 10, 81245 Munich, Germany.ORCID 0000-0002-7956-0558
Marisa PamplonaConservation Science Department, Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany.ORCID 0000-0002-0262-3549
Deutsches Museum · DETechnical University of Munich · DEPolymer Standards Service (Germany) · DE

Funding

Deutsche Bundesstiftung Umwelt 34790/01
6 · The paper itself

Abstract

The preparation of mock-ups in heritage science studies represents a valid alternative for investigation purposes, avoiding extensive sampling of cultural heritage objects. This work presents for the first time the successful preparation of three dimensional (3D) mock-ups made of celluloid, considering a combination of historical industrial production strategies and small-scale lab facilities. Prefabricated transparent celluloid sheets were acquired and then shaped through compression molding for creating mock-ups with 3D geometries. These reflected common and representative shapes encountered in the collection of the Deutsches Museum. Visual inspection of the mock-ups allowed determining the best compression molding conditions. Attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) confirmed the absence of molecular heterogeneity due to the processing method. Artificial aging of the mock-ups was conducted to reach degradation states comparable with naturally aged objects. ATR-FTIR investigation offered first insights into the induced artificial degradation. Ion chromatography (IC) and gel permeation chromatography (GPC) analyses allowed to assess the extent of the artificial aging of the celluloid mock-ups and confirmed the occurrence of loss of camphor, denitration, and main chain polymer scission, the latter being the predominant decay path. The comparison with historical objects highlighted that the mock-ups are representative of moderately aged artifacts. As such, this study paves the way for implementing moderately aged celluloid 3D mock-ups in heritage science research, enabling in-depth testing for the scope of conservation.

Indexed as

artificial agingATR-FTIR spectroscopycamphorcelluloidcellulose nitratedegradationgel permeation chromatographyion chromatographythree-dimensional mock-ups

Identifiers

PMID36850136
PMCPMC9960551
OpenAlexW4319786860

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.